>
Matrix 2025 Mega Sleek Shampoo 300ML With Shadow

Mega Sleek

Mega Sleek

Smoothing Shampoo

Smoothing shampoo provides frizz control and humidity protection for all types of frizz-prone hair
Protects Hair Against Humidity Protects Hair Against Humidity
Reduce Frizz Coarse, Unruly Hair Reduce Frizz Coarse, Unruly Hair
Details

Matrix Mega Sleek Anti-Frizz Smoothing Shampoo formulated with Oleic acid and Jojoba oil balances fiber moisture in both high and low humidity, gently cleanses hair while defeating frizz at all seasons. Hair is smooth, shiny and poof-free, for frizz-free hair.

How To Use

Apply a quarter size amount of product, lather and rinse. Follow with Mega Sleek Smoothing Conditioner, Smoothie Supreme Mask, and 96H Topcoat.

Ingredients

AQUA / WATER / EAU, SODIUM C14-16 OLEFIN SULFONATE, COCAMIDE MEA, GLYCERIN, COCAMIDOPROPYL BETAINE, GLYCOL DISTEARATE, SODIUM LAUROYL SARCOSINATE, PARFUM / FRAGRANCE, HEXYLENE GLYCOL, CITRIC ACID, SODIUM HYDROXIDE, SODIUM CHLORIDE, SODIUM BENZOATE, PEG-55 PROPYLENE GLYCOL OLEATE, PROPYLENE GLYCOL, COCO-BETAINE, HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, CARBOMER, SALICYLIC ACID, BENZOIC ACID, TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES, OLEIC ACID, SIMMONDSIA CHINENSIS SEED OIL / JOJOBA SEED OIL, POLYQUATERNIUM-7, VANILLIN, BENZYL ALCOHOL, COUMARIN, CITRUS LIMON PEEL OIL, CARVONE, LIMONENE, CI 19140 / YELLOW 5, CI 17200 / RED 33

Matrix 2025 Mega Sleek Reno Ecomm Benefits Shampoo
Matrix 2026 DMI Katseye Ecomm ATF Daniela Solo
Matrix 2025 ROW Mega Sleek Retail Range Mask

Professional Anti-Frizz Haircare

Matrix 2025 Mega Sleek Reno Ecomm Shampoo 300ml

Cleanse

Mega Sleek Shampoo
Matrix 2025 Mega Sleek Reno Ecomm Conditioner 300ml

Condition

Mega Sleek Conditioner
Matrix 2025 ROW Mega Sleek Reno Ecomm Mask

Treat

Mega Sleek Smoothie Supreme Mask
Matrix 2025 DMI Mega Sleek Topcoat eComm Product

Smooth

Mega Sleek 96H Anti-Frizz Topcoat
Matrix 2025 Mega Sleek Reno Ecomm Ingredients Technology
Matrix 2025 Mega Sleek Reno Ecomm Fragrance ATF
Matrix 2025 Mega Sleek Shampoo Pack Texture

Frequently Asked Questions

What Is Mega Sleek Smoothing Shampoo?

A smoothing shampoo formulated with oleic acid, a fatty acid known for moisturization and smoothing, and jojoba oil known to moisturize without a greasy feel.

Who Is Mega Sleek Smoothing Shampoo For?

Anyone with unruly, hair looking for smoothing and frizz protection.

What are the Benefits of Mega Sleek Smoothing Shampoo?

Immediately after using Shampoo + Conditioner or Mask: 

  • Hair looks & feels healthy + smooth root to tip 
  • Hair looks & feels soft, conditioned/nourished, moisturized/hydrated 
  • Hair looks shiny and feels silky 
  • Hair does not feel weighed down or greasy; Hair does not look poofy 
How is Mega Sleek Smoothing Shampoo Used?

Apply a quarter size amount of product, lather, and rinse.

Can Mega Sleek Smoothing Shampoo be used on all hair types, textures and patterns? ?

Yes, Mega Sleek Smoothing Shampoo can be used on all hair textures from fine to coarse and all curl patterns from straight to coiled. All Mega Sleek products are suitable for hair that is color-treated and/or highlighted and for natural hair. 

Rating Snapshot

Select a row below to filter reviews.
1067 reviews with 5 stars.
290 reviews with 4 stars.
83 reviews with 3 stars.
23 reviews with 2 stars.
78 reviews with 1 star.

Overall Rating

4.5

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Average Customer Ratings

Most Helpful Favorable Review

HELP - Smoothing color-treated hair

12 years ago
I love the smoothing effect of this product. HOWEVER..... it removes the color (from hair dye) after washing my hair a few times. I wish that the company created a product which smoothed hair for those of us who colored our hair.
165 people found this helpful
Show Reviews:

Most Helpful Critical Review

Doesnt work

10 years ago
Bought this shampoo, conditioner, and leave in conditoner. Did nothing for my hair, if anything it made my hair frizzier and more unmanageable. Very unimpressed.
37 people found this helpful
Show Reviews:

Filter Reviews

  • formula
  • smell
  • purchase
  • returns
  • satisfaction
  • disappointing
  • price
  • frizz
  • 1 star
  • 2 stars
  • 3 stars
  • 4 stars
  • 5 stars
1 to 8 of 1541 Reviews .
1 – 8 of 1541 Reviews
  • Most Relevant
  • Most Helpful
  • Highest to Lowest Rating
  • Lowest to Highest Rating
  • Most Recent

Awful

a day ago
Bring back the old formula. This new formula makes my hair dry and smells awful. I just wasted $100 on the liter bottles.

No, I do not recommend this product.

Helpful?
Response from Matrix:
6 hours ago
Consumer Care Center
We are so sorry to hear that the updated Mega Sleek formula left your hair feeling dry and carried an awful scent, especially after spending $100 on liter bottles. We hear your plea to bring back the original formula and are escalating your direct feedback to our product team. We refuse to let your money go to waste, so please contact our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can issue a full refund voucher and make this right for you.

Bad, Bad, Bad

2 days ago
Ugh. They discontinued this product, created a new one, and called it by the same name. I’ve been loyal for 28 years. I gave the new version a solid try. It’s not good. Bummed I have to move on. If you ever bring back the original scent (that we all know and love), please let me know.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a day ago
Consumer Care Center
Thank you so much for an incredible 28 years of loyalty to Matrix, and we are deeply sorry that giving the new version a solid try left you disappointed and moving on. You are completely right: changing the formula and classic scent so drastically while keeping the same name feels misleading to our most dedicated customers. While the original formula has been discontinued, we are passing your feedback directly to brand leadership. We refuse to let your loyalty end on a bad note, so please contact our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST).

Wash away greasy hair

3 days ago
The Matix smoothing shampoo is wash away dust and grease hair, the texture feel soft, light, smell nice, feell so clean after first wash, lifelessness
  • Review photo 1.
  • Review photo 2.
Helpful?

New Formula, Poor Results

11 days ago
The new formula is disappointing. I’ve used this product for MANY years with great results, but now with the change in ingredients, it seems to do the opposite of what it claims. Won’t buy it again.

No, I do not recommend this product.

Helpful?
Response from Matrix:
10 days ago
ccc
We are so sorry to hear that the updated formula has disappointed you after many years of great results. Hearing that the change in ingredients is doing the exact opposite of what it claims for your hair is truly frustrating, and we completely understand why you won’t be repurchasing. We are passing your feedback directly to our product development team. Please contact Matrix Consumer Care at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can assist you.

Heavily coating and dry my hair

12 days ago
I've been using the reg sleek shampoo and conditioner and its been great. I bout the liters of the shampoo and conditioner and it has not been working for me. My hair feels heavily coated and dry. I cant even use it anymore. What did you change?
Helpful?
Response from Matrix:
11 days ago
Consumer Care Center
Thank you for reaching out and sharing your experience, and we are so truly sorry to hear that your new liter bottles are leaving your hair feeling heavily coated and dry.

Sad about the change

13 days ago
Extremely disappointed in the new formula after using this and food for soft along with the serum, I find myself searching on Google for known alternatives now. This definitely does not work for smoothing the way it used to. Unlike other reviews the smell did not bother me but otherwise it’s a total let down and I won’t be buying anymore. It’s unfortunate I just bought two large bottles for as expensive as they are!

No, I do not recommend this product.

Helpful?
Response from Matrix:
11 days ago
ccc
Thank you for sharing your feedback with us, and we are so truly sorry to hear that the updated Mega Sleek formula has let you down, especially after pairing it with Food For Soft and investing in two expensive, large bottles. It is incredibly frustrating to find yourself searching Google for alternatives to a staple routine you relied on for smoothing. While you didn't mind the scent, we hear you loud and clear on the loss of smoothing performance. We refuse to let your investment in two large bottles go to waste, so please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can issue a full refund voucher for both bottles and help make this right.
14 days ago
Disappointed in the formula change. My hair is way more tangled after using. Please go back to original formula. Leaves hair dull and heavy

No, I do not recommend this product.

Helpful?
Response from Matrix:
11 days ago
Consumer Care Center
We are so sorry to hear that the updated formula is leaving your hair dull, heavy, and tangled. We understand how frustrating it is when a product no longer gives you the smooth, manageable results you count on, and we are passing your feedback directly to our team. Please reach out to Matrix Consumer Care at 1-888-777-6396 so we can assist you with a refund voucher and help make this right.

Very upset about product change for mega sleek

17 days ago
I am so mad 😡 I’ve been using matrix mega sleek for YEARS and I go to buy my favorite hair care and you have changed the formula!?! The smell is atrocious! Shame on you for changing. Looks like I’ll be finding a new brand! You are going to lose money on this. Absolutely ridiculous!
Helpful?
Response from Matrix:
11 days ago
Consumer Care Center
We’re so sorry the new Mega Sleek formula—and especially its fragrance—has disappointed you after years of loyalty. We understand how upsetting it is when a product you love changes, and we appreciate you sharing your feedback. We’ll pass your comments along to the team. Please contact Matrix Consumer Care at 1-888-777-6396 for assistance.
1 – 8 of 1541 Reviews

Rating Snapshot

Select a row below to filter reviews.
1067 reviews with 5 stars.
290 reviews with 4 stars.
83 reviews with 3 stars.
23 reviews with 2 stars.
78 reviews with 1 star.

Overall Rating

4.5

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Average Customer Ratings

Filter Reviews

  • formula
  • smell
  • purchase
  • returns
  • satisfaction
  • disappointing
  • price
  • frizz
  • 1 star
  • 2 stars
  • 3 stars
  • 4 stars
  • 5 stars
9 to 38 of 1541 Reviews .
9 – 38 of 1541 Reviews
  • Most Relevant
  • Most Helpful
  • Highest to Lowest Rating
  • Lowest to Highest Rating
  • Most Recent

Go back to original formula

20 days ago
The new formula sleek shampoo/Conditioner is horrendous, the smell is so overwhelming it causes nausea. The added dyes do more harm then good, removing the shea butter, has wrecked this amazing shampoo conditioner combo, I have recommended this line to my clients for 10 years, I can no longer do that, as they have all returned it to me. This is more then disappointing. Hair is now frizzy, hard to brush. Where it did not used to be. How to fix this issue, Go back to the amazing original formula. It was wonderful, smooth, made long hair look amazing.

No, I do not recommend this product.

Helpful?
Response from Matrix:
15 days ago
Consumer Care Center
We are deeply sorry that the renovated Mega Sleek formula has compromised your work and resulted in client returns after ten years of trusted recommendations. You diagnosed the exact formulation issues: removing the rich Shea Butter in favor of a lighter Jojoba Oil base stripped away the essential slip needed for detangling and frizz control, while the added synthetic dyes and overpowering caramel-pistachio fragrance have proven overwhelming in the salon chair. Your professional reputation means everything to us, and we are escalating your direct feedback straight to our professional salon division.

I would buy this product again and again!

21 days ago
I love the matrix smoothing shampoo. I use it with the matrix, smoothing conditioner, and the matrix hair mask. It smells absolutely amazing and not only is it lightweight but it doesn’t leave your hair greasy or with flakes and residue. It leaves my hair feeling so soft and shiny and no tangles. It even tamed my ridiculous frizz that was so bad. I wish I had a picture to show for that, but I do not unfortunately but just know this product does work and it does not dry your hair out!
Helpful?

Used to be great

24 days ago
The new fragrance is awful! I now have an entire liter of shampoo and I hate the way it smells. It needs to have huge letters on the bottle telling customers the scent is completely different, so we don’t make the mistake of purchasing a product that is so stinky . I am so disappointed.
Helpful?
Response from Matrix:
23 days ago
Consumer Care Center
We are deeply sorry for the disappointment and frustration you experienced with the updated Mega Sleek shampoo, especially after purchasing an entire liter bottle. You make an entirely fair and valid point: when a signature fragrance undergoes such a drastic shift—from our subtle classic salon scent to a warm, sweet caramel-pistachio profile—it should be clearly and boldly labeled on the bottle so loyal customers aren't caught off guard. Scent is an intensely personal part of your daily routine, and no one should be stuck with a full liter of product they dislike. We are passing your direct feedback about packaging transparency and the fragrance overhaul to our brand marketing leadership. We refuse to leave you stuck with a liter bottle that you hate, so please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST).

I’ll buy it again

28 days ago
I loved the scent of this but can be overpowering if not used to strong fragrances. It was easy to use and helped a lot with my frizz. I felt that it left a shine to my hair after used.
Helpful?

Loyalty down the drain

30 days ago
I’ve been using the mega sleek shampoo and conditioner combo for probably close to 20 years at this point and was so confused with my latest repurchase. I kept looking at the bottles to make sure I wasn’t losing my mind. Both products are so wildly different than before. The color, texture, viscosity, scent, all different. I’m not sure who decided that this was even remotely the same product as before. My hair feels heavily, but also dry and brittle. I’m so upset that I bought my usual large bottles of this, only to be stuck with this grossly disappointing product. Not looking forward to have to find a replacement product.

No, I do not recommend this product.

Helpful?
Response from Matrix:
23 days ago
Consumer Care Center
We are deeply sorry for the confusion and disappointment you experienced with your latest purchase after 20 years of loyal use. We completely understand why you were checking the bottles—when color, scent, viscosity, and performance all change so drastically, it truly feels like a different product. Swapping the original Shea Butter for Jojoba Oil was meant to make the line 100% vegan, but we recognize it can leave hair coated and heavy yet dry and brittle. We refuse to leave you stuck with large bottles that don't work, so please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST).

LOATHE ENTIRELY

30 days ago
HATE THE NEW FORMULA! Please change it back. There was nothing wrong with it and no reason to do this unless you're trying to save money.

No, I do not recommend this product.

Helpful?
Response from Matrix:
23 days ago
Consumer Care Center
We hear your anger and frustration loud and clear, and we are so deeply sorry for how much this formula change has let you down. Hearing that you feel this renovation was driven by cost-cutting rather than customer care is hard to read, but we completely understand why it feels that way when a product that worked perfectly for you is suddenly altered. Our intention with this renovation was to transition the line to a 100% vegan formula, swapping our original Shea Butter for a Jojoba Oil blend and modernizing the scent. However, we recognize that removing what made the original so special has broken our loyal customers' trust and delivered results far below what you expect from a professional salon brand. While the original formula has been discontinued, we are passing your direct feedback—and your clear demand to bring it back—straight to our executive brand leadership. We do not want you to feel out of pocket, so please contact our Matrix Consumer Care team at 1-888-777-6396.

Awful now

a month ago
Why mess with what WAS perfection! New formula is awful, now I have to find a new shampoo!!

No, I do not recommend this product.

Helpful?
Response from Matrix:
29 days ago
Consumer Care Center
We hear your frustration loud and clear, and we are so truly sorry for messing with a shampoo you considered absolute perfection. Our brand-wide renovation to 100% vegan formulas replaced our original Shea Butter base with Jojoba Oil and introduced an updated fragrance, but we recognize that for our loyal community, this change completely ruined the magic and left you with the exhausting task of searching for a new shampoo. While the original formula has been discontinued, we are passing your feedback directly to our product development leadership. We want to make this right with you after your years of support. Please reach out to our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST)

New formula fails to match the old one.

a month ago
Why? Why? Matrix why did you discontinue such an amazing product and replace it with such a subpar product? To add to injury, you are duping your loyal users by keeping the packaging and branding same and selling a completely different product. I have used this shampoo for over 14 years and the new formula is nowhere close to the old one. It's a completely new product with obnoxious overwhelming scent and leaves my hair very frizzy, dull and heavy. Anyone here praising the new formula has been given a free product ane asked for review. They are not the long term users of this shampoo. So ignore those reviews. Washing your hair few times with a free product you received and going back to your fav shampoo doesn't reflect true reviews. Matrix listen to your loyal costumers and bring back the old formula. Sell your new formula as a different line. -A very disappointed customer
Helpful?
Response from Matrix:
30 days ago
Consumer Care Center
Thank you for your 14 years of loyalty to Matrix, and we hear your raw frustration and disappointment loud and clear. Having a customer who has stood by us for over a decade feel duped, unheard, and pushed aside is truly heartbreaking for our brand. We do not want you to feel dismissed or out of pocket after 14 years of dedication. Please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST).

New formula is bad

a month ago
I used this shampoo/conditioner for years, it was the only one I liked. After the formula changed not too long ago, it’s horrible. It gave me a reaction on my scalp, and the inside of my ears became red and pealed. No matter how much I would wash my hair it left a coat on it.

No, I do not recommend this product.

Helpful?
Response from Matrix:
29 days ago
Consumer Care Center
We are sorry to hear about the experience you had with Smoothing Shampoo. We would like to speak with you directly about it. Please give us a call @ 1-888-777-6396 for assistance and provide the case # 48181627. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.

Don't like new formula for mega sleek

a month ago
Hate the new formula. Smell gives me a headache. Can't get a brush thru my hair and after 20 years of using it for my scalp I have to find something else because the new formula doesn't work

No, I do not recommend this product.

Helpful?
Response from Matrix:
30 days ago
Consumer Care Center
Thank you so much for your 20 years of loyalty to Matrix, and we are deeply sorry for the headache-inducing scent and tangled, unmanageable results you are experiencing with the new formula. Relying on a formula for two decades—especially for the comfort and balance of your scalp—is a huge deal, and having to start over and find something else is incredibly frustrating. When we renovated Mega Sleek to be 100% vegan, replacing the original Shea Butter base with Jojoba Oil and introducing a new caramel-pistachio fragrance, we recognize that the soothing slip and subtle aroma you depended on were lost, leaving your hair tangled and your scalp unhappy. While the original formula has been discontinued, we are passing your feedback directly to our product development team. We want to take care of you after two decades of support, so please reach out to our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). Our team will gladly issue a full refund voucher and help guide you to a gentle, low-fragrance scalp and detangling alternative in our portfolio so you don't have to search on your own.

New formula is awful

a month ago
New formula smells awful. I used the shea butter formula for 20 years. I have never been more loyal to any product ever. This is not it. Please bring back the old formula.

No, I do not recommend this product.

Helpful?
Response from Matrix:
30 days ago
Consumer Care Center
Thank you so much for an incredible 20 years of unmatched loyalty to Matrix. Hearing from someone who has never been more loyal to any product ever makes reading this truly heartbreaking for us. Our transition to a 100% vegan formula replaced the rich, protective Shea Butter you trusted for two decades with Jojoba Oil and introduced a new, warm gourmand fragrance. We hear you loud and clear: this is simply not it, and the new scent is a massive disappointment compared to what you loved. While the original Shea Butter formula has been officially discontinued, we are passing your heartfelt plea directly to our executive brand leadership so they see the impact on our most devoted advocates. We want to make this right with you. Please reach out to our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can process a full refund voucher for your purchase and help support you in finding a richer, better-scented alternative in our portfolio.

Bring the old product back

a month ago
Been using this product for probably 25 years...until now. The new formula is gross, smells so strong, not looking forward to trying a million shampoos after 25 years. Please change the formula back 🙏

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Thank you so much for an incredible 25 years of loyalty to Matrix. Hearing that a quarter-century staple has suddenly let you down—and that you are now facing the exhausting, frustrating process of testing a million new shampoos—is truly heartbreaking for us. When we renovated the Mega Sleek line to be 100% vegan, we replaced the original Shea Butter base with Jojoba Oil and introduced a new, warm gourmand fragrance. However, we hear you loud and clear: the strong scent and changed texture feel gross and completely unrecognisable compared to the clean, reliable performance you loved for decades. While the original formula has been officially discontinued, we hear your plea 🙏 and are escalating your direct feedback straight to our executive brand and product development leadership. We do not want you to feel abandoned on your search. Please reach out directly to our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). Our team will gladly issue a full refund voucher for your purchase and would love to personally assist you with gentle, low-fragrance recommendations so you don't have to navigate finding a new shampoo all on your own.

Go woke, go broke. New vegan formula is horrible.

a month ago
This would be a great time for one of those “You asked, we listened.” announcements. Please go back to the old formula! Whatever woke marketing Matrix was aiming for by going to this new formula is probably being negated by all of the customers they are losing just because Matrix wants to be vegan. Cater to one small subgroup, lose the majority of your customers. Great idea. If Matrix wanted a vegan product, they should just make a vegan line. Leave the staple products alone!

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Over 15 years of loyalty means the world to us, and hearing how much you miss the original performance truly hurts. We hear your frustration loud and clear regarding the formula changes and the heavy feel it leaves on your hair. Please know that your feedback—and the passion behind it—is being shared directly with our product development and brand teams. Thank you for being such a dedicated part of our community for so long, and for sharing your honest thoughts with us. 💙

New formula is horrible!

a month ago
I have been using the matrix sleek look shampoo and conditioner since the late 90s. That alone tells you how much I liked the product. Until now. This new formula is junk and the scent is so strong that I can’t stand to wash my hair with it. I will never understand why companies have to mess with products that are already successful. Matrix just lost a customer. A lot of them probably.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Since the late 90s?! That is incredible dedication, and we are so grateful you’ve trusted Matrix for all these years. Hearing that the new formula and scent have pushed you away truly breaks our hearts. We completely understand your frustration—when you have a holy-grail routine for decades, a change like this is a major letdown. We are definitely passing your feedback straight to our product development team. We hate to see you go after all this time, but we deeply appreciate that you were part of the Matrix family for so long. 💙

Please change the formula back

a month ago
The new formula is HORRIBLE. I’ve used the mega sleek for over a 15 years and absolutely loved it. Now, it makes my hair heavy as if I haven’t rinsed it out thoroughly.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Over 15 years?! Wow, we are so humbled by your incredible loyalty, and we are genuinely so sorry to hear the new Mega-Sleek is letting you down. That heavy, weighed-down feeling—like it won't rinse out properly—is definitely not the smooth, sleek finish you've relied on for all this time. We completely understand your frustration and will make sure your feedback goes straight to our product team. Thank you for trusting us for over a decade and a half. We hate to see you go, and we hear you loud and clear. 💙

Mega Sleek Shampoo new formula review

a month ago
New formula weighs hair down. Hair feels heavy and oily after wash. Smell is too strong.
Helpful?
Response from Matrix:
a month ago
ccc
Thank you for taking the time to share your feedback with us, and we are so sorry to hear that the updated Mega Sleek formula is weighing your hair down and leaving it feeling heavy and oily. When we renovated the line to be 100% vegan, we replaced the original Shea Butter base with a Jojoba Oil blend and introduced a new, warm fragrance profile. However, we recognize that on many hair types, this new formula can sit heavily on the hair shaft instead of absorbing, leaving strands greasy rather than clean and smooth, while the new scent can be overpowering. We want to make this right for you, so please reach out directly to our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). Our team will gladly assist you with a full refund voucher and help guide you to a lighter, weightless alternative from our collections—such as our Food For Soft line—that cleanses cleanly without leaving behind any oily residue or heavy scent.

Was great, terrible changes

a month ago
My husband and I have been using this shampoo/ conditioner for 10 years. This new formula is AWFUL. It smells bad, is hard to lather, leaves my hair unmanageable. Now I will have to bring 3 large bottles back to Ulta. Can’t believe how this great product has bee ruined.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Oh no, that is the ultimate heartbreak—relying on a holy-grail product for a decade only to have a new formula miss the mark completely. We completely understand your frustration, and having to lug three large bottles back to Ulta to return them is such a hassle on top of it all. Thank you for sharing your honest experience—we will definitely pass your feedback about the scent, lather, and texture along to our team.

Why change the formula!!

a month ago
I’ve been using this shampoo and conditioner for years and my grandma has for even longer. She has severe allergies to scented products so she couldn’t use the new one even if she wanted to :( unfortunately, it’s not just the scent. The conditioner leaves an unwanted residue on the hair.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Thank you so much for reaching out and sharing your family's story with us. Hearing that you and your grandmother have trusted Matrix for generations makes this especially heartbreaking to read, and we are deeply sorry that our new formula has let you both down. When someone has severe fragrance sensitivities or allergies, having a go-to, low-scent staple suddenly replaced with a strong gourmand perfume makes the product completely unusable and unsafe for their routine. In addition to the updated fragrance, our shift to a 100% vegan formula replaced rich Shea Butter with a lighter Jojoba Oil blend; however, we recognize that on many hair types, this new blend can leave behind an unwanted, waxy or heavy residue rather than rinsing away clean and silky. We completely understand how disappointing this is for both you and your grandmother. While the original formula has been officially discontinued, we are passing your feedback regarding severe scent sensitivities and residue directly to our product formulation team. We want to make sure you and your grandmother are taken care of. Please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can issue a full refund voucher for your purchases. Our team would also be happy to help you explore gentle, low-scent, or fragrance-sensitive alternatives within our broader L'Oréal portfolio that will be safe and comfortable for your grandmother to use.

Awful new scent

a month ago
I am so disappointed in the formula change, specifically regarding the scent. I thought my daughter wasn't washing her hair properly, but its the new formula that makes her hair stink. So bummed because it used to smell so good before the formula change.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Thank you for reaching out to share your feedback with us, and we are so truly sorry for the disappointment and frustration this formula change has caused in your household. It is especially disheartening to hear that the updated fragrance was so off-putting that you initially thought your daughter wasn’t washing her hair properly. As part of our transition to a 100% vegan formula, we modernized the fragrance to a warm Salted Caramel and Sicilian Pistachio profile. However, we recognize that this sweet, gourmand aroma is a drastic departure from the clean, subtle salon scent long-time users loved, and when it interacts with wet hair or lingers throughout the day, it can be overwhelming and unpleasant. We completely understand your bummed reaction and want to take care of you and your daughter. Please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can process a full refund voucher for your purchase. Our team would also be happy to guide you toward a fresh, clean-scented alternative from our collections that you both will love.

Horrible new formula

a month ago
Bring back original formula. The new is horrible do not waste your money. It stinks and is horrible on the hair. You cant tell me you can't bring old formula back. I've used this product for over 25 years and have had to find another product.
Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Thank you so much for your incredible 25 years of loyalty to Matrix, and we hear your anger and frustration loud and clear. Losing a staple product you relied on for a quarter of a century is a massive disappointment, and hearing that our new formula stinks, performs terribly on your hair, and forced you to find another brand is truly heartbreaking. Our transition to a 100% vegan formula replaced our original Shea Butter base with Jojoba Oil and introduced a new gourmand fragrance profile. While corporate formula renovations are complex, you are entirely right to demand that your voice as a 25-year advocate be heard. We are escalating your direct feedback—and your clear demand to bring the original formula back—directly to our executive brand leadership. We do not want you to feel that your money was wasted after decades of supporting us. Please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). We are so sorry to have lost your trust after all these years and are committed to making this right for you.

It’s a NO from me

a month ago
I’ve used this shampoo since the early 2000’s, I knew the day would come when it got discontinued bc it was too good to be true, but I’m still so upset. I thought my bottle was spoiled, the scent is awful and much too strong. The main benefit of the old formula was that it’s one of the only shampoos with barely any scent, this “updated” formula is supposedly cleaner and healthier yet contains artificial scent. The old formula was smoothing without being heavy and never over dried, I cannot say either of those things now. Please bring back the original!! I’m devastated I’ll have to switch to another brand. By the way “updating” a product by changing almost all of it is very misleading and disappointing.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
ccc
Thank you for being an incredibly loyal user of Matrix since the early 2000s, and we are so truly sorry for the devastation and disappointment this reformulation has caused you. Relying on a shampoo for over two decades is a rare level of trust, and we completely understand why you feel upset and misled by an "update" that changed almost everything you loved about the product. You bring up a very important point regarding the fragrance: one of the key reasons so many long-time users loved the original formula was its clean, subtle, and low-key scent profile. Replacing that with a heavy, artificial gourmand fragrance—while marketing the line as cleaner and modernized—feels contradictory and overwhelming. Furthermore, losing the signature balance of lightweight smoothing without stripping or weighing down hair is a huge loss. While the original formula has been officially discontinued, we hear your plea loud and clear and are passing your comments on fragrance transparency and performance directly to our executive brand leadership. We want to make sure you are supported, so please reach out to our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST).

The new formula is worse, I would not recommend

a month ago
This is a really sad review to have to write. I started using this shampoo in high school, around 2010 and I've been loyal customer and raving about it ever since. I've stuck with it even when the price went from 10 dollars a bottle, 15 years ago, to 45 dollars a bottle today. I was surprised when I bought this a couple of months ago to see that the formula has changed. Unfortunately it's for the worse, my hair is not as soft or smooth as before and the shampoo leaves my hair greasy even after multiple "rinse and repeat" washes. Which also means I have gone through my shampoo quicker than ever before. I hope the old formula comes back soon, I'll likely be switching to a different brand unless/until something changes.

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Thank you so much for taking the time to share your story with us. Writing a review like this after fifteen years of dedicated loyalty—sticking with us through every price evolution from $10 to $45 a bottle—is deeply touching, and hearing that our updated formula has let you down is truly heartbreaking. When you invest premium money into a salon staple you have trusted since high school, you expect uncompromising quality. In our transition to a 100% vegan formula, we replaced our rich Shea Butter base with a lighter Jojoba Oil blend; however, we recognize that on many hair types, this new formula struggles to rinse cleanly, leaving behind a greasy residue that requires multiple washes and burns through your expensive bottle at an alarming rate without delivering that signature soft, smooth finish. While the original formula has been officially discontinued, your fifteen years of loyalty mean the world to us, and we are passing your heartfelt review and pricing feedback directly to our executive brand leadership. We do not want you to feel out of pocket after supporting us for so long, so please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). Our team will gladly issue a full refund voucher for your purchase and help guide you to a cleaner, clarifying alternative in our portfolio before you make the switch away from our brand.

Great product

a month ago
This shampoo is by far my daughter favorite to use. She says it leaves her hair feeling so silky and smooth and smells amazing! If you’re looking for a new shampoo this is definitely worth trying!
Helpful?

My New Favorite Shampoo

a month ago
With curly hair, I often struggle to find the balance between shampoos that properly get rid of product build up, but don’t strip the material and needs oils from my hair. This shampoo has proven that that balance can be done! This shampoo is great at lathering up while making my cruel feel soft once rinsed off. It’s my new favorite shampoo!
Helpful?

Terrible New Formula!

2 months ago
Whaaa! (That’s me crying) So sad you changed my favorite shampoo and conditioner ever! My hair was a hot mess after using this new formula of Mega Sleek. Dull, flat, wouldn’t hold a curl…and smells terrible. Boo! I have used these products for 10 years and now I’m scrambling to find something else. What were you thinking changing perfection? Please bring back your old formula!

No, I do not recommend this product.

Helpful?
Response from Matrix:
a month ago
Consumer Care Center
We hear you, and we are crying right along with you! Hearing that a product you considered absolute perfection for ten years left your hair a "hot mess"—dull, flat, unable to hold a curl, and with a scent you dislike—is heartbreaking for us. When we renovated Mega Sleek to be 100% vegan, we replaced the original Shea Butter with Jojoba Oil and updated the fragrance, but we recognize that for long-time fans like you, this change completely ruined the magic. While the original formula has been officially discontinued, we hear your plea loud and clear and are passing your direct feedback about the loss of hold, shine, and scent directly to our product development team. We don't want you scrambling without support! Please reach out to our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) for further assistance.

New formula is trash!

2 months ago
Why are you selling a completely new formula in original bottle? It's a completely new product: color, smell and it's effectiveness. It completely weighs down my hair and makes it look dull and flat. Original formula left it shiny and smooth. Have been using the original for about 15 years. BRING BACK THE ORIGINAL FORMULA. SELL YOUR NEW FORMULA AS A NEW PRODUCT!
Helpful?
Response from Matrix:
a month ago
Consumer Care Center
Thank you for being a 15-year loyal user of Matrix, and we hear your anger and frustration loud and clear. You raise a completely valid point: when a product undergoes a complete transformation in color, scent, and performance, continuing to sell it in similar packaging feels misleading and disappointing to long-time customers who rely on the original performance. When we updated the Mega Sleek line to be 100% vegan, we replaced the original Shea Butter base with Jojoba Oil and updated the fragrance. However, we recognize that this shift resulted in a completely different experience—leaving hair dull, flat, and weighed down instead of glossy and smooth. We understand why you feel this should have been launched as an entirely separate product rather than replacing the formula you trusted for fifteen years. While the original formula has been discontinued, we are passing your feedback directly to our brand and product management leadership to highlight the serious impact this repackaging and reformulation has had on our most loyal customers. We want to take care of you, so please contact our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can make this right.

Please bring back the old formula

2 months ago
The new formula is awful!! The scent is so over powering, and it’s not a good smell either. My hair feels so dry and my scalp has been so itchy since this switch in ingredients. I am so sad, I’ve been using this product for many years. Please, bring back the old formula. It was so much better than whatever this is.

No, I do not recommend this product.

Helpful?
Response from Matrix:
2 months ago
Consumer Care Center
We are sorry to hear about the experience you had with Smoothing Shampoo. We would like to speak with you directly about it. Please give us a call @ 1-888-777-6396 for assistance and provide the case # 47740076. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.

recommend

2 months ago
This shampoo leaves my hair feeling soft, smooth, and shiny after every wash. It provides great hydration without weighing my hair down, and the fresh scent is a nice bonus. My hair feels healthier, more manageable, and easier to style. Overall, it’s a great option if you’re looking for a nourishing everyday shampoo.
  • Review photo 1.
  • Review photo 2.
Helpful?

New formula is absolutely horrid!

2 months ago
Bought five liters to stock up. Lo and behold, we received the new formula, and there wasn't a single thing on the packaging to indicate this. My daughter found it out the hard way when she used it. She has severe sensory issues, and this change is absolutely awful for her. First, the scent is like a bad candle from the discount bin that's been marked down five times because they can't give the thing away. Who on Earth wants their head to smell like a bad candle?! We're all allergic to scents like this in our house, and it took me four full hours to clear it from our home. Second, and most importantly, my daughter actually experienced an allergic reaction to the new formula itself. She was pretty much covered in hives/welts from the top if her head to her feet because it traveled downward as she tried to rinse it out. She grabbed her medicated shampoo from the dermatologist and used that to get it all out if her hair. Two Benadryl and four hours later, her hives and the bad candle scent finally went away. Here's the thing: It's your product. You're free to ruin a good thing if you want to (and you clearly have), but you should at least do something to call extra attention to the change on the packaging for awhile. Something like 'new formula' for example would have been appreciated. Anyway, I foresee a LOT of complaints and disgruntled customers in your future. Some of us will share our thoughts and other's won't bother, but we all have one thing in common. We will find a different product to meet our needs. Also, you should keep in mind that this type of thing tends to break the trust between the consumer and the brand as a whole, not just a single product. After all, if you're changing formulas, why would one want to find a new product they like just to have it be changed without warning also? Something like this wasn't a formula change really. It's simply a different shampoo. You should have just created a new line and left Mega Sleek, a well-lived favorite among stylists, alone. We will be taking all five liters bottles back to Ulta tomorrow.

No, I do not recommend this product.

Helpful?
Response from Matrix:
2 months ago
Consumer Care Center
We are sorry to hear about the experience you had with our Smoothing Shampoo. We would like to speak with you directly about it. Please give us a call @ 1-888-777-6396 for assistance and provide the case # 47693590. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.
2 months ago
I liked the old formula better… old formula 5 stars… this one 3. I have used the old formula for 10 plus years and I might have to find a new product.

No, I do not recommend this product.

  • Review photo 1.
Helpful?
Response from Matrix:
2 months ago
Consumer Care Center
Thank you for being a loyal user of Matrix for over 10 years, and we are so sorry to hear that the updated Mega Sleek formula drops from a 5-star to a 3-star product for you. We completely understand why you are considering looking for a new product after relying on the original formula for a decade. Our shift from Shea Butter to a lighter Jojoba Oil base and a new fragrance was meant to modernize the line, but we recognize it does not deliver the same experience you loved. While the original formula has been discontinued, we want to make things right. Please contact our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can personally assist you with help guide you to a different formula in our lineup that can give you back that 5-star performance.
9 – 38 of 1541 Reviews