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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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1066 reviews with 5 stars.
290 reviews with 4 stars.
83 reviews with 3 stars.
23 reviews with 2 stars.
71 reviews with 1 star.

Overall Rating

4.5

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Average Customer Ratings

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1 to 8 of 1533 Reviews .
1 – 8 of 1533 Reviews
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Go back to original formula

a day 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?

I would buy this product again and again!

2 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

6 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:
4 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

9 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

11 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:
4 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

11 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:
4 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

13 days 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:
10 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.

14 days 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:
11 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).
1 – 8 of 1533 Reviews