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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?
Who Is Mega Sleek Smoothing Shampoo For?
What are the Benefits of Mega Sleek Smoothing Shampoo?
How is Mega Sleek Smoothing Shampoo Used?
Can Mega Sleek Smoothing Shampoo be used on all hair types, textures and patterns? ?

Rating Snapshot

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1064 reviews with 5 stars.
290 reviews with 4 stars.
83 reviews with 3 stars.
23 reviews with 2 stars.
57 reviews with 1 star.

Overall Rating

4.5

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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
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Most Helpful Critical Review

Doesnt work

9 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
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1 to 8 of 1517 Reviews .
1 – 8 of 1517 Reviews

Was great, terrible changes

2 days 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 day 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!!

5 days 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:
3 days 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

9 days 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:
4 days 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

9 days 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:
4 days 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

11 days 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:
10 days 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

13 days 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:
4 days 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

14 days 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

16 days 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?
1 – 8 of 1517 Reviews