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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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1057 reviews with 5 stars.
288 reviews with 4 stars.
81 reviews with 3 stars.
21 reviews with 2 stars.
42 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.
36 people found this helpful
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1 to 8 of 1489 Reviews .
1 – 8 of 1489 Reviews

Works well and is affordable

14 days ago
After a few uses for this shampoo I like how my hair looks with a good volume and shine, the shampoo cleanses the scalp without making it feels over dry, it it works specifically for thick dry or wavy hair, it makes a really good job and it cost less than others salon brands also it smells great.

Originally posted on influenster.com

New formula is awful

15 days ago
Have used this shampoo religiously for more than 10 years, but the new formula is absolutely awful. It smells horrific, does not lather, and does not make my hair feel clean. Please bring back the original formula.

No, I do not recommend this product.

Helpful?
Response from Matrix:
11 days ago
Consumer Care Center
We are so incredibly grateful for your 10 years of loyal support, which is why it breaks our hearts to hear how much the new formula has disappointed you. We want you to love your hair every single day, and we are truly sorry that the new scent, lather, and overall feel fell so short of the standard you’ve trusted for a decade. Please know that your feedback is incredibly important to us. We are sharing your comments directly with our product development team, as we take the loyalty of long-time fans like you very seriously. We would love to help make this right—please feel free to reach out to our Customer Care team directly so we can assist you further and help find a product you can love just as much as the original.

New formula is not good

17 days ago
I have used this shampoo for years but the change in formula is awful. The shampoo is thick and yellow. It does not lather well and leave a residue feeling on my scalp. My hair is not easy to comb through. I will return it and try something else. :(
Helpful?
Response from Matrix:
16 days ago
Consumer Care Center
We are deeply sorry to hear about your experience with your recent purchase. As a loyal, long-time member of the Kérastase family, your trust is incredibly important to us, and we hate to hear that our recent formulation update has disappointed you. Thank you again for your valuable feedback, which is essential to us as we continue to refine our rituals.

Great smell but didn’t feel like it did much

18 days ago
It lathers well and it did leave my hair not so dry/coarse-feeling after rinsing. I can’t speak on how it feels on the scalp since I have seborrheic dermatitis so I didn’t apply it on the scalp. I honestly didn’t feel like it did much for my hair other than it wasn’t as drying as most shampoos are but imo I can always follow up with a good conditioner to really counteract the dryness.

Originally posted on influenster.com

Response from Matrix:
16 days ago
Consumer Care Center
Thank you so much for sharing your detailed and honest experience with us. We are pleased to hear that our Bain [shampoo] provided a luxurious lather and left your hair feeling softer and less coarse upon rinsing. We also completely understand and support your cautious approach regarding your scalp. Because seborrheic dermatitis is a medical scalp condition, we always recommend consulting with your dermatologist or a medical expert to find the best personalized scalp care routine. You made an excellent point about conditioning! Our Bains are designed to gently cleanse and prime the hair fiber without stripping its natural moisture, serving as the perfect foundation. To truly unlock the deeply nourishing, transformative benefits and targeted results your hair needs, we always recommend following up with a matching Kérastase Fondant (conditioner) or Masque to deeply care for your mid-lengths and ends. Thank you again for your valuable feedback, and we wish you the very best on your healthy hair journey!

A smoothing shampoo that reduces frizz, adds shine, and leaves hair feeling soft and clean.

19 days ago
I’ve been impressed with this shampoo so far. It lathers well, rinses clean, and leaves my hair feeling soft without drying it out. I noticed more shine and less frizz after using it, and it helps my hair feel smoother and easier to style. It cleans thoroughly without feeling harsh.

Originally posted on influenster.com

21 days ago
I've used this product for years and this new formula is awful. The smell is terrible and the new change doesn't have the same effect with taming frizz please change it back!

No, I do not recommend this product.

Helpful?
Response from Matrix:
21 days ago
Consumer Care Center
Thank you for being a loyal user of our products for so many years. We are very sorry to hear that the new formula of our Smoothing Shampoo has not met your expectations, particularly regarding the new fragrance and its ability to tame frizz. We occasionally update our formulations to incorporate the latest scientific advancements or to improve overall performance, but our goal is always to deliver a product you love. Your feedback is incredibly valuable, and we are sharing your comments directly with our Product Development and Quality teams.

Amazin

22 days ago
I loved this shampoo; it leaves a wonderful scent and makes my hair soft and silky. I highly recommend it, and adding the whole line is fantastic!

Originally posted on influenster.com

Fresh not Frizzy

23 days ago
This shampoo from Matrix really helped my frizzy hair. I really noticed a positive change with dandruff too. The shampoo lathers great with just a small amount, and smells wonderful too. It rinses easily and I am able to go a couple days without washing it again because it leaves the hair feeling fresh and less products is needed for frizz.

Originally posted on influenster.com

1 – 8 of 1489 Reviews