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Mega Sleek

Mega Sleek

Matrix Mega Sleek Smoothing Shampoo for Frizzy Hair

Sulfate-free smoothing shampoo provides frizz control and humidity protection for all types of frizz-prone hair

Sulfate-free shampoo balances fiber moisture, defeats frizz in all seasons.

Matrix Mega Sleek Smoothing Shampoo for Frizzy Hair

Sulfate-free shampoo balances fiber moisture, defeats frizz in all seasons.

Protects Hair Against Humidity Protects Hair Against Humidity
Reduce Frizz Coarse Unruly Hair Reduce Frizz Coarse Unruly Hair
Product Details
Matrix Mega Sleek Anti-Frizz Smoothing Shampoo is the answer to one of the most-searched hair concerns: frizzy hair. Formulated with Oleic Acid and Jojoba Oil, it balances fiber moisture in both high and low humidity, gently cleanses while defeating frizz in all seasons, leaving hair smooth, shiny, and poof-free.
  • Sulfate-free formula gently cleanses without stripping moisture
  • Defies frizz for up to 96 hours and in 97% humidity
  • Balances fiber moisture in both high and low humidity
  • Defeats frizz in all seasons
  • Formulated with Oleic Acid and Jojoba Oil
How To Use

Apply a quarter-size amount, lather, and rinse. Follow with Mega Sleek Smoothing Conditioner or with Mega Sleek Smoothie Supreme Hair Mask. Style with 96H Topcoat Serum.

Ingredients

Key Ingredients: Oleic Acid, Jojoba Oil

Oleic Acid recharges the fiber with deep moisture while Jojoba Oil, closest in structure to natural sebum, seals it in to block out humid or dry air for frizz-free hair.

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

Reviews

Rating Snapshot

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1058 reviews with 5 stars.
288 reviews with 4 stars.
83 reviews with 3 stars.
21 reviews with 2 stars.
51 reviews with 1 star.

Overall Rating

4.5

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Average Customer Ratings

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1 to 8 of 1501 Reviews
1 – 8 of 1501 Reviews
1 out of 5 stars.

Can’t stand the smell!

12 days ago
I love this product (with the shea butter) and have used it religiously for 15 years. It was one of the few shampoos out there with salon quality results without the perfume salon smell. Unfortunately the new formula with oleic acid and jojoba oil is very fragrant. The odour is not foul but it is incredibly fragrant and I cannot tolerate my hair smelling like this all day nor can I get away with using this shampoo working as a physician in a scent-free hospital setting. Please please consider keeping a unscented shampoo option for those of us who don’t want the ‘salon smell’😢

No, I do not recommend this product.

Helpful?
Response from Matrix:
9 days ago
BEC
Thank you for sharing your experience on our Anti-Frizz Smoothing Shampoo for Frizzy Hair. We are sorry to hear the formula of this shampoo doesn't meet your expectations due to the products fragrance. This sulfate-free smoothing shampoo provides frizz control and humidity protection for all types of frizz-prone hair. We appreciate your feedback and will share it with other members on our team for product formulations. We always welcome our customers feedback and suggestions, as they are a valuable tool to improve our services and products in any way that we can. Thanks again for sharing. We hope that you continue using our products in the future.
1 out of 5 stars.

Why change the formula!!

13 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.

matrix.com

Originally posted on matrix.com

Response from matrix.com:
11 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.
1 out of 5 stars.

Awful new scent

17 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.

matrix.com

Originally posted on matrix.com

Response from matrix.com:
12 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.
1 out of 5 stars.

Horrible new formula

17 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.
matrix.com

Originally posted on matrix.com

Response from matrix.com:
12 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.
1 out of 5 stars.

It’s a NO from me

19 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.

matrix.com

Originally posted on matrix.com

Response from matrix.com:
18 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).
5 out of 5 stars.

Great product

22 days ago
[This review was collected as part of a promotion.] 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!
matrix.com

Originally posted on matrix.com

4 out of 5 stars.

My New Favorite Shampoo

24 days ago
[This review was collected as part of a promotion.] 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!
matrix.com

Originally posted on matrix.com

1 out of 5 stars.

Terrible New Formula!

26 days 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.

matrix.com

Originally posted on matrix.com

Response from matrix.com:
23 days 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.
1 – 8 of 1501 Reviews
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Frequently Asked Questions

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