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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?
Who Is Mega Sleek Smoothing Conditioner For?
What are the Benefits of Mega Sleek Smoothing Conditioner?
How is Mega Sleek Smoothing Conditioner Used?
Can Mega Sleek Smoothing Conditioner be used on all hair types, textures and patterns?

Rating Snapshot

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696 reviews with 5 stars.
175 reviews with 4 stars.
44 reviews with 3 stars.
9 reviews with 2 stars.
16 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?

11 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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Filter Reviews

1 to 8 of 940 Reviews .
1 – 8 of 940 Reviews

New Formula is BAD - Don't waste your $

11 days ago
The new formula is terrible. It smells bad, the consistency is runny, and it does NOT detangle. Bring the old formula back.

No, I do not recommend this product.

Helpful?
Response from Matrix:
4 days ago
ccc
We are deeply sorry to hear that the updated Mega Sleek conditioner let you down with its runny consistency, overpowering scent, and lack of detangling power. When we transitioned to a 100% vegan formula, we replaced our rich Shea Butter base with lighter Jojoba Oil and introduced a new fragrance, but we recognize that this shift stripped away the thick slip and effortless detangling our customers loved. While the original formula has been officially discontinued, we hear your demand loud and clear and are passing your direct feedback to our product team. We want to make things right for you, so please reach out to our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can process a full refund voucher and help guide you to a rich, easy-detangling alternative, such as our deeply moisturizing Food For Soft line.

New Formula is Awful - Please Go Back to the Old!

13 days ago
I am so disappointed they changed this conditioner. I've been consistently using it for years, and loved everything about the old formula. It smoothed and moisturized my hair so nicely, got rid of my tangles, and I loved the scent. The new formula does NOT smooth or detangle, and the scent is horrible. PLEASE PLEASE PLEASE go back to the old formula, or I'll unfortunately have to search for a new conditioner.

No, I do not recommend this product.

Helpful?
Response from Matrix:
11 days ago
Consumer Care Center
Thank you for being such a loyal, consistent user of Matrix for years, and we are so truly sorry to hear how disappointed you are with the updated Mega Sleek conditioner. When we renovated the line to be 100% vegan, we replaced the original Shea Butter base with Jojoba Oil and introduced a new, warmer fragrance profile. However, we recognize that this shift stripped away the effortless slip, deep moisture, and subtle scent you relied on, leaving your hair tangled and unmanaged. While the original formula has been officially discontinued, we hear your plea loud and clear and are passing your feedback directly to our brand leadership team. We want to take care of you, so please reach out to our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST).

Conditioner Formula Change Horrible!

14 days ago
The new conditioner formula is horrible! I’ve been using this for decades and I’m so sad. Please change it back. It’s now yellow, chunky, weighs the hair down, and the scent is strong and unpleasant. Go to Amazon and read the reviews after the change. A perfect product is now trash. Why on earth would you change something that worked so well?
Helpful?

Smells AMAZING!

15 days ago
These are by far my daughter’s favorite shampoo and conditioner to use. They make her hair so smooth and she said they smell heavenly!! If you are looking for a new conditioner this is definitely worth it!
Helpful?

No More Dry & Damaged Curls

17 days ago
This conditioner has been an absolute god send this summer. Like most cult headed people, my girls get extremely dry during the summer month due to the heat, chlorine in pools, and salt water. However, this conditioner gives my curls slip and moisture needed in between wash days and after shampooing. Detangling my curls this summer has been much easier!!
Helpful?

New formulation is terrible and ineffective!

17 days ago
I have used both the Matrix Mega Sleek shampoo and conditioner for over a decade but the new formula is not at all comparable. I'm so disappointed! The conditioner does not have any smoothing or sleek effect. Comparing the results I'm used to with old formulation to now using the new reformulation, my hair now looks frizzy, dull, and not at all smooth. Once styled, my hair definitely does not have the same shine or finish that the old formula left it with. It also does not feel moisturized or nourished after using the reformulation and is markedly more tangled. Additionally, the conditioner itself and the scent it leaves in the hair is *extremely* vanilla-y and kinda cheap/off-putting, a huge departure from the old formula. I had stocked up at a liter sale without realizing Matrix had reformulated (an indication/label would have been nice). I will definitely be returning and looking for something significantly more effective and that doesn't have an artificial baked good scent.

No, I do not recommend this product.

Helpful?
Response from Matrix:
16 days ago
ccc
Thank you so much for being a loyal user of Matrix Mega Sleek for over a decade, and we are deeply sorry for the disappointment and frustration this reformulation has caused you—especially after stocking up during a liter sale. You raise a very fair point regarding packaging transparency: when a product undergoes a major overhaul in both performance and fragrance, our customers deserve clear labeling so they know what to expect before buying in bulk. In our shift to a 100% vegan formula, replacing Shea Butter with Jojoba Oil and introducing a warm gourmand fragrance (which carries strong vanilla, caramel, and sweet notes), we recognize that the rich moisture, effortless slip, and subtle salon finish you relied on for ten years were lost. Seeing your hair left frizzy, dull, tangled, and smelling like a sweet baked good is far from the professional quality you expect from us. We completely support your decision to return your liter bottles. If you experience any issues or pushback returning them to your retailer, please contact our Matrix Consumer Care team directly at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST). We will make sure your return is handled smoothly, issue a direct refund voucher if needed, and share your feedback on packaging transparency and fragrance directly with our brand leadership.

Go Back to the original formula- So dissapointed

17 days ago
As others have noted - I do not like the new formula...please go back to Shea butter/Old formula......the smell is too strong and the results are NOT as good as the old formula. Been using the old formula conditioner for the last 8+years. Really BAD change.

No, I do not recommend this product.

Helpful?

Please go back to old formula!!!

26 days ago
I've been using this conditioner for probably the last 20 years (along with the shampoo) I just opened a new liter and what happened to the formula? I don't like all the perfume smell - please go back to the old formula. The product seems to work well as always. Why fix something that was working so well to add a bunch of unnecessary perfumes????
Helpful?
Response from Matrix:
25 days ago
Consumer Care Center
Thank you so much for your 20 years of loyalty to Matrix Mega Sleek. We are glad to hear the conditioner is still performing well for your hair, but we are deeply sorry that the strong new caramel-pistachio fragrance is so overwhelming. We hear your feedback loud and clear about preferring the subtle, clean scent of the original formula, and we are passing your comments directly to our product development team. Please contact our Matrix Consumer Care team at 1-888-777-6396 (Monday–Friday, 9:00 AM – 5:30 PM EST) so we can assist you directly and help you find a high-performing alternative in our lineup with a milder scent.
1 – 8 of 940 Reviews