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Matrix 2025 Mega Sleek Conditioner 300ML With Shadow

Mega Sleek

Mega Sleek

Smoothing Conditioner

Smoothing conditioner provides frizz control & 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 Conditioner For All Hair Types & Frizzy Hair. This anti-frizz smoothing conditioner formulated with oleic acid and jojoba oil balances fiber moisture in both high and low humidity. Instantly smooths and detangles hair while defeating frizz at all seasons. Hair is smooth, shiny and poof-free. For frizz-fee hair.

How To Use

Following Mega Sleek Smoothing shampoo, apply from mid-lengths to ends, leave on up to one minute and rinse. Use interchangeably with Smoothie Supreme mask 1-2 times per week. Follow up with 96H Topcoat.

Ingredients

AQUA / WATER / EAU, CETEARYL ALCOHOL, BEHENTRIMONIUM CHLORIDE, GLYCERIN, ISOPROPYL MYRISTATE, CETYL ESTERS, AMODIMETHICONE, PARFUM / FRAGRANCE, PHENOXYETHANOL, ISOPROPYL ALCOHOL, SIMMONDSIA CHINENSIS SEED OIL / JOJOBA SEED OIL, BENZOIC ACID, OLEIC ACID, COCO-BETAINE, TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES, C11-15 ALKETH-7, VANILLIN, BENZYL ALCOHOL, LAURETH-9, SODIUM CHLORIDE, COUMARIN, TRIDECETH-12, SODIUM HYDROXIDE, CITRUS LIMON PEEL OIL, CARVONE, LIMONENE, CI 19140 / YELLOW 5, SALICYLIC ACID, CITRIC ACID, SORBIC ACID, 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 Conditioner Pack Texture RGB

Frequently Asked Questions

What Is Mega Sleek Smoothing Conditioner?

A smoothing conditioner 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 Conditioner For?

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

What are the Benefits of Mega Sleek Smoothing Conditioner?

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 Conditioner Used?

Following shampoo, apply from mid lengths to ends and leave on up to one minute. Rinse.

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

Yes, Mega Sleek Conditioner 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

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701 reviews with 5 stars.
175 reviews with 4 stars.
44 reviews with 3 stars.
9 reviews with 2 stars.
28 reviews with 1 star.

Overall Rating

4.6

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Average Customer Ratings

Most Helpful Favorable Review

Best Ever!

12 years ago
I bought both shampoo & conditioner about a month ago, along with my usual brand. I absolutely LOVE this conditioner (it smells great too)!! I live in Florida where it gets very humid during the summer months, which means my hair tends to become coarse, brittle, frizzy and basically hard to manage. My hair is very thick and below my shoulders. When I use Matrix Total Results Sleek Conditioner my hair is soft and manageable. It feels awesome! I've experimented to know for sure whether it was the product or something else. Every time I've used something other than this conditioner, after a day my hair becomes hard to manage and just doesn't feel that great. Please....Please....Please DON'T ever change the formula!!! #Imsoldforlife!
19 people found this helpful
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Most Helpful Critical Review

Where is the silk and wheat protein?

12 years ago
Even I know as a true former Matrix user that this product definately needs the silk amino acids and wheat protein put back in this product. I can't say that it's totally bad, but it does moisturize to a point that my hair just pops when I run my hand or a brush through it. That usually means something is off balance. I have to combat it with the Redken Cat or Chi Keratin Mist. It helps somewhat. And then I have the issue with the residue it leaves behind as well. Not the cleanest feeling.
10 people found this helpful
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Easy to take out the product

12 days ago
Been use it for month, I like the packaging so easy to squeeze out the product, easy to rinse with warm water. Worth it the money you spend. I use the whole combo and turn out good result
Helpful?

Heart broken over awful new formula

13 days ago
I am so disappointed that the formula has been changed. I’ve been using it for almost 20 years. I bought some on Amazon, and sent it back. (It’s now yellow, stinks, and makes my hair so dry and gross!) I thought perhaps someone had tainted it. Bought from a different vender, and it was great. Well, that vendor is now out of the original formula, and so bought it again on Amazon…only to be disappointed again. I came to this site and see that I’m not the only one who’s super sad. Please, bring back my beloved favorite formula…I’m absolutely heartbroken that my trusty beautiful conditioner has changed.

No, I do not recommend this product.

Helpful?
Response from Matrix:
5 days ago
Consumer Care Center
We are so sorry that the updated Mega Sleek conditioner has disappointed you after nearly 20 years of loyal use. We understand why the change in color, scent, and results made you wonder whether the product had been tampered with—and how heartbreaking it is to lose a trusted favorite. We hear your request to bring back the original formula and will share your feedback with our team. For help with your purchase, please contact Matrix Consumer Care at 1-888-777-6396 (Monday–Friday, 9:00 AM–5:30 PM EST).

It’s terrible since you changed the formula

19 days ago
Why did you change the product formula? I have used it and loved it for years but will have to find something new. It’s horrible, scent and conditioning results are not what they used to be.

No, I do not recommend this product.

Helpful?
Response from Matrix:
18 days 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.

So smooth after use

21 days ago
The smoothing conditioner or Matrix brand is the good product, the hair smooth in the shortly period time, the hair feel so soft and the packaging is perfect to use.
Helpful?

Zero impressed

23 days ago
I have used the shampoo and conditioner for over 20 years. I just opened a new bottle of conditioner today and was totally surprised! I thought Amazon was the culprit. When I came on here and found that there’s a new formula sent and etc.. I realized that there was a change. How in the world would you want to change something after 20+ years? It was such a beloved product. I hate to change anything but I may have to. The sent the texture and the results don’t even come close to the old formula. I don’t think if I had never used the old product. I would be impressed with this new one.

No, I do not recommend this product.

Helpful?
Response from Matrix:
19 days ago
ccc
We’re so sorry the updated Mega Sleek formula has left your hair feeling dull, heavy, and tangled. We understand your disappointment and are sharing your feedback with our product development team. Please reach out to Matrix Consumer Care at 1-888-777-6396 so we can assist you.

Amazing

27 days ago
Such an amazing conditioner, and works so well with the shampoo, woah! This leaves my hair so soft and makes it feel so Lucious and healthy! I am truly obsessed
Helpful?
30 days ago
The formula is not good. They should not have changed. Don’t understand why a great product cannot just be left alone. Wasted $48 on a large bottle. Will be switching to redken. Hopefully they are smart enough to keep the formula as is

No, I do not recommend this product.

Helpful?
Response from Matrix:
27 days ago
Consumer Care Center
We’re sorry the updated formula disappointed you, especially after you spent $48 on a large bottle. We understand how frustrating it is when a product you trusted changes and no longer works for you. We appreciate your feedback and will share it with the team. Please contact Matrix Consumer Care at 1-888-777-6396 for assistance with your purchase.

Bummer - new formula odor is too strong-can’t use

a month ago
I have used mega sleek conditioner for more years than I can remember. I bought 2 liters last month to stock up so I wouldn’t run out. Imagine my surprise opening one of them in the shower and finding a strong smell and a totally different color- I thought maybe it had gone bad so I opened the other one to find it also yellow with a string odor so came here to find out what happened and found many others with the same experience. No idea why they decided to change the formula that wasn’t broken? But now I’m stuck with 2 bottles that I can’t use and the stuff is NOT cheap. After so many years using this, this makes me sad and I wish the bottle had had some sort of announcement that it was a new formula- maybe I would’ve only wasted my money on one bottle if I had known and not two.

No, I do not recommend this product.

Helpful?
Response from Matrix:
27 days ago
Consumer Care Center
We are deeply sorry for the shock and disappointment you experienced after opening two brand-new liters of Mega Sleek to find an unannounced yellow color and a strong scent. You are completely right: a formula overhaul of this scale should have been clearly marked on the bottle so loyal customers weren't left stocking up on expensive products they cannot use. We refuse to leave you stuck with two unusable bottles, so please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). Let them know you purchased two liters of the renovated formula without notification on the packaging, and our team will gladly issue a full refund voucher for both bottles.
1 – 8 of 957 Reviews