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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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1043 reviews with 5 stars.
281 reviews with 4 stars.
80 reviews with 3 stars.
20 reviews with 2 stars.
37 reviews with 1 star.

Overall Rating

4.6

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Average Customer Ratings

Most Helpful Favorable Review

HELP - Smoothing color-treated hair

11 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.
163 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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Filter Reviews

1 to 8 of 1461 Reviews .
1 – 8 of 1461 Reviews

Not the best salon shampoo

3 days ago
Decent. It smells nice. Unfortunately, for my very fine 2c hair, there are better products out there that make my hair feel softer. Overall 6/10
  • Review photo 1.

Originally posted on influenster.com

New formula smells gross and is terrible

4 days ago
I’ve used this shampoo and conditioner for over 10 years and loved the clean scent it used to have. Now it smells tropical like every other shampoo and conditioner and it’s a terrible smell. I bought the product from Ulta and returned it. You lost a long time customer! So disappointed

No, I do not recommend this product.

  • Review photo 1.
Helpful?

So fresh and so clean

4 days ago
Great shampoo! Smells so good and leaves your hair soft and clean. A little goes a long way and the lather is wonderful. I used it on my wavy hair and my daughter tried it on her curly hair - our hair felt so soft and my daughter's curls looked so pretty.
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Originally posted on influenster.com

Great product, Great results

4 days ago
When I used this shampoo, I immediately felt a difference. My hair felt smooth, it was shining, and it smelt amazing!!! My hair was completely detangled when I finished using it.
  • Review photo 1.

Originally posted on influenster.com

Wow

5 days ago
I feel my hair so good after try this product!! Good value!!! Amazing hydration and good scalp!!! The scent is so good I really love this product!!
  • Review photo 1.

Originally posted on influenster.com

Fancy shampoo

5 days ago
This is a great shampoo. I was very surprised. Followed instructions and it didnt feel too heavy for my hair. Hair felt shiny and nice texture. I recommend this shampoo
  • Review photo 1.
  • Review photo 2.

Originally posted on influenster.com

Definitely worth trying!!!

5 days ago
I have the worst dry, frizzy and unruly hair! I've tried so many different shampoos!! Hands down, this Matrix Mega Sleek is the absolute best! It truly keeps my hair frizz free (in most weather conditions) soft, and shiny!!! May not work for everyone, but definitely I get amazing results! At least give it a try! You won't be disappointed!

Yes, I recommend this product.

Helpful?

Anti-Frizz Shampoo

5 days ago
I received this product from influenster in exchange of my honest review. I love the smell of the Matrix Mega Sleek Smoothing Shampoo. I use this daily with Matrix Mega Sleek Smoothing conditioner. Makes my hair smooth and manageable. Shiny and easy to style. No frizzy hair.
  • Review photo 1.

Originally posted on influenster.com

1 – 8 of 1461 Reviews

Rating Snapshot

Select a row below to filter reviews.
1043 reviews with 5 stars.
281 reviews with 4 stars.
80 reviews with 3 stars.
20 reviews with 2 stars.
37 reviews with 1 star.

Overall Rating

4.6

Review this Product

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Select to rate the item with 2 stars. This action will open submission form.
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Average Customer Ratings

Most Helpful Favorable Review

HELP - Smoothing color-treated hair

11 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.
163 people found this helpful
Show Reviews:

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
Show Reviews:

Filter Reviews

9 to 38 of 1461 Reviews .
9 – 38 of 1461 Reviews

Obsessed!!

5 days ago
I really love this line of hair products so much and the shampoo really delivers!! I have wavy hair that can sometimes feel tangled and dry, even in the shower. Unlike many other shampoos, this one actually seemed to hydrated my entire head of hair like a conditioner! Hair was smooth and shiny after. Im now a convert to Matrix but will need to buy a bigger bottle next time as this size wont last long enough.

Originally posted on influenster.com

I am obsessed

5 days ago
Smells great and left my son’s hair (video) feeling smooth and moisturized. When he woke up in the morning his hair looked good, wasn’t all crazy like usual. Rinses well like the average shampoo does. Doesn’t dry out the scalp and did I mention it smells amazing?! Use it with the conditioner +/- the hair mask for a better result.

Originally posted on influenster.com

Great Shampoo for Tangle Prone Hair

6 days ago
I absolutely love this line from Matrix! My hair has never felt so soft and non tangled before when waking up in the morning. The scent on top of it is really good and not too strong. It does a great job at cleaning but the only thing I didn’t like was how flimsy the bottle was. I dropped it once and the top flew off so now I can’t close it. Besides that, I love the product inside!
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Originally posted on influenster.com

Lathers great, smoother hair

6 days ago
The Mega Sleek Smoothing Shampoo lathers nicely and smells great. My hair feels so clean after using it, and after using the conditioner and mask that are a part of this system, it feels softer and silkier. We haven’t had many humid days, so I’m not sure about that, but my hair looks smoother after using it.
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Originally posted on influenster.com

Clean, shiny and smooth hair

8 days ago
This shampoo leaves my hair clean , shiny and silky. It feels light , smooth and smells so very good! Lightweight and effective shampoo, I really enjoy using it.
  • Review photo 1.

Originally posted on influenster.com

You won’t regret it!

8 days ago
I absolutely love this entire line! I actually went into my bathroom and threw out every other product because Matrix Mega Sleek is all I will ever need!

Yes, I recommend this product.

Helpful?

Hair

9 days ago
This product dispensed the product nicely and easy to rinse. I didn’t notice residue and wasn’t too thick. Left my hair smooth and manageable. Helped hydrate the ends

Originally posted on influenster.com

i love this shampoo

10 days ago
So lucky to have this shampoo to try. light and comfort smell. i apply an enough amount from root the the end of my hair. worth value with consistency.
  • Review photo 1.

Originally posted on influenster.com

Wasted money

11 days ago
Absolutely the worst shampoo and conditioner I have ever used. My hair is dry and feels sticky. I honestly think drug store shampoos and conditioners are better. Wasted $100 on buying 2 liters. Will never buy anything Matrix again!!!

No, I do not recommend this product.

Helpful?
Response from Matrix:
6 days ago
Consumer Care Center
We are very sorry to hear about your experience. It is incredibly frustrating to invest in professional products only to have them leave your hair feeling dry and sticky. We recommend checking the return policy of your retailer, as many authorized sellers offer satisfaction guarantees even for opened products. Additionally, try a clarifying wash to help remove the sticky residue. Your feedback is valuable to us, and we apologize that these products did not meet your expectations.

Absolutely LOVE!

12 days ago
So glad I found this shampoo. With the conditioner and mask as well, it’s even more effective, but even on its own, I love it. It can be hard to find moisturizing/smoothing shampoo that doesn’t weigh my hair down, and I don’t have that problem with this. Smells great, lathers nicely, and rinses easily.
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Originally posted on influenster.com

One of my favorite shampoo

14 days ago
I love this Matrix smoothing shampoo. It has one of the most pleasant scent. The texture is creamy and make hair, my scalp feels so clean and fresh. Combing is so easy and quick since my hair becomes so soft and smooth after using this shampoo. I highly recommend this to everyone.
  • Review photo 1.

Originally posted on influenster.com

Sad and disappointed.

14 days ago
I used Matrix sleek and smooth down shampoo and conditioner for over 10 years and I loved it until you all decided to change the formula for the shampoo and conditioner. Recently I bought both shampoo and conditioner at Ulta and noticed that it was a different color but two it left my hair very stringy and dirty. I'm very sad and upset because now I have to find another shampoo and conditioner. I will never use these two products again. You just lost a customer.

No, I do not recommend this product.

Helpful?
Response from Matrix:
13 days ago
Consumer Care Center
We are truly sorry to hear this. Thank you for your 10 years of loyalty; we know how upsetting it is when a long-time favorite no longer delivers the results you love. We sincerely apologize that the new formula left your hair feeling stringy rather than sleek. Your feedback is incredibly valuable and has been shared directly with our product team. We would love the opportunity to help you find a different routine that works for your hair—please reach out if you are open to a personalized recommendation.

The goat for a curly girl

16 days ago
OK, the suds alone screams luxury. As a hairstylist, I’m huge on the cleansing factors of a shampoo. This checks every box for me. You can feel the moisture and the frizz reduction/sleek start to your styling at your first shampoo. If you check out my photo, you can see how shiny my hair is after air drying with zero product put into it. Even if you don’t have curly hair, you know this is bananas.
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Originally posted on influenster.com

Love it.

16 days ago
After using it past few weeks, I love this shampoo. It cleans well without stripping too much moisture. My hair feels soft, slightly smoother after wash. Good basic shampoo but I highly recommend use with combo conditioner/ mask for best result.
  • Review photo 1.

Originally posted on influenster.com

Good quality hair care product

16 days ago
It have good design, and good quality, i feel my hair so soft after use it in the first time use, after dryer my hair shine and not frizz, i really liove it, but the smeel little sweet
  • Review photo 1.

Originally posted on influenster.com

Smoothing anti frizz shampoo!

16 days ago
I received this product in exchange for my honest review. This product is meant to be the first step before the mask and conditioner. The product comes out thick, but lathers well into hair. Once rinsed out my hair feels super soft and hydrated! Once dry, my hair appears less frizzy. I can’t wait to continue weekly use of this product and see if it helps long term with hair breakage! I would definitely recommend!!!
  • Review photo 1.

Originally posted on influenster.com

Finally a good moisturizing shampoo with no residu

16 days ago
This shampoo is also tied for second out of the three products I got in my package from Matrix. It helps my hair feel frizz free and soft after using it with the conditioner and/or smoothie mask :) Often, shampoos can leave my hair feeling dry even even if they don’t claim to be clarifying or for oily hair, (etc). I’ve especially been dealing with dry hair after lots of recent trips to the beach and swims in the ocean. This shampoo makes me feel better about keeping my hair healthy after doing these fun things, I don’t want to have to worry about drying my hair out when I’m having fun at the beach. Love the jojoba in it, it makes my hair feel rejuvenated and full of nutrients. Love the smell, love how well it cleans my hair without drying it, and just love the results. No problems with residue. Matrix has a new customer in me!
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Originally posted on influenster.com

Great Shampoo 🧡

16 days ago
I received this shampoo from Influenster in exchange for my honest review. First, I love the packaging! The colors are beautiful and the container itself is super cute and durable. The shampoo claims to be a smoothing shampoo for frizzy hair. I love the ingredients of oleic acid (which restores essential moisture) and jojoba oil (which locks humidity out). It has a fresh and slightly fruity scent with notes of shea butter and light citrus, but nothing overpowering. It lathers nicely and makes your hair feel clean and looks shiny! I would recommend if you have frizzy hair! ✨
  • Review photo 1.

Originally posted on influenster.com

Less frizz!

17 days ago
The Matrix Mega Sleek Smoothing shampoo has a good consistency and lathers very well. It left my hair feeling moisturized and soft. The product is easy to dispense and rinses out cleanly. My hair was less frizzy after use.
  • Review photo 1.

Originally posted on influenster.com

Great shampoo!

18 days ago
I love all Matrix products so I was super excited to try out the Mega Sleek Smoothing Shampoo! This shampoo for sure has become a new favorite for so many reasons! I love how good this shampoo lathers, rinses out, smells and it leaves my hair looking/feeling amazing! Just after shampooing I can notice a difference in my hair already.. less tangled, more smooth and soft plus leaves my hair smelling good all day long! Love this shampoo paired with the conditioner and mask!
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Originally posted on influenster.com

Keeps my hair looking polished

18 days ago
The first thing I noticed was the lather. It foams quickly without needing a ton of product. It definitely is a good cleanse before using conditioner. My hair feels noticeably softer and when I rinse it out, it doesn’t leave my hair tangled. The scent is clean and not overwhelming. Where it stands out the most is the shine. My hair looks so polished after I dry it. It does a great job of taming my frizz and I don’t have to work as hard with my heat tools to get my hair to do what I want it to do.
  • Review photo 1.

Originally posted on influenster.com

Unfortunately not for us

19 days ago
My daughters and I used the matrix mega shampoo, conditioner and mask. The smell and texture are great. After using it for a while our hair started to be one dry and damaged feeling. Unfortunately this product isn't for us.
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Originally posted on influenster.com

Response from Matrix:
13 days ago
Consumer Care Center
We are sorry the Matrix Mega Sleek range didn't work for you. While great for smoothing, its specific formula may not have matched your hair's needs, or long-term use may have caused build-up that blocked moisture.

Amazing aroma and softness hair

20 days ago
The shampoo cleans perfectly at the same time it is quite soft and easily washed off after it the hair remains fresh and shiny a long time The shampoo has excellent foam and low consumption
  • Review photo 1.

Originally posted on influenster.com

It's going to depend on your hair

20 days ago
So there is a lot to like about this shampoo for like 3/4 of my hair. That would be the top layer and first texture that I have. It does a fantastic job of dealing with flyaways and new growth. The challenge I'm having is the other 1/4 of my hair that is a different (more coarse and wavy bit of hair that likes to hang on to oil). That part is a challenge. Since I prefer to wash my hair every other day, this batch of hair that wants to cling to the oil in this shampoo for dear life, is driving me mad. Great product, great scent, easy to use bottle and perfect for 3/4 of my hair... It's that other 1/4 that makes me sad to sad it's not the right product for me. The product rinses great - but if your hair loves oil? May not be the right option for you either.
  • Review photo 1.

Originally posted on influenster.com

Good Shampoo

21 days ago
Same as the conditioner, there want nothing wow about this shampoo other that it cleanse well. Given that it was made for anti frizz I didn’t find the use in it for type 4B hair.
  • Review photo 1.

Originally posted on influenster.com

Leaves hair manageable, sleek, fragrant, and frizz

21 days ago
Matrix Mega Sleek Smoothing Shampoo really went far above my expectations for shampoo. I have unruly, frizzy hair that easily tangles, so it's been hard to find anything that works. My first impression when I opened the cap was that it had the most captivating, delicious scent, and I was so excited for my hair to smell that way. It has a fresh and slightly fruity scent with notes of shea butter and light citrus, like a sweet, tropical aroma, but it isn't overpowering; it's just right. This shampoo has really great slip to it, which helps detangle my wavy hair, as well as keep it hydrated and manageable while washing. It lathers up like a dream and makes my hair look so clean and fresh. It has Jojoba Oil, which locks humidity out, and Oleic Acid, which restores essential moisture...and my hair desperately needs both of those things to keep my hair from being unruly and dry. My hair feels manageable, looks sleek, smells good, and is less frizzy. Highly recommend.
  • Review photo 1.

Originally posted on influenster.com

A gentle yet effective cleanser that’s smooths fri

21 days ago
It’s the ideal first step for frizz free hair especially if you have fine hair that easily loses its volume. It cleanses really well to remove residue and buildup, yet it’s gentle enough for the strands to feel nourished. I love using the conditioner after for extra hydration and smooth finish for styling.
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Originally posted on influenster.com

It really cleans well

21 days ago
This is a great shampoo, it lathers well cleans my hair nicely. It last a long time too.Doesn't dry out,smells great, comes in a good quality and practical packaging, but it's not suitable for travel.
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Originally posted on influenster.com

Works great

21 days ago
The Sleek Smoothing Shampoo has been amazing for taming my hair. It gently cleanses without drying it out, and from the first wash, I noticed my hair felt smoother and more controlled. It really helps reduce frizz and leaves my hair looking sleek, shiny, and healthy. My hair feels soft and silky even before I style it, which is a huge plus.
  • Review photo 1.

Originally posted on influenster.com

Nice Shampoo

21 days ago
The shampoo has a great scent! I love it. It gives my hair smoothness and volume after use. It’s very easy to apply and rinse off. I dont feel my hair oily or dry after using it. Nice try!
  • Review photo 1.

Originally posted on influenster.com

9 – 38 of 1461 Reviews