Leave-In Molecular Repair Hair Mask

4.3 4,322 reviews
Leave-In Molecular Repair Hair Mask
A leave-in treatment mask for all hair types that clinically reverses damage in four minutes. The ... Learn more

322.00 SAR (1)

With Sephora Beauty Pass 1 POINT = 10 SAR. Unlock a gift every 200 points!

Secure payment

  • visa
  • mastercard
578725
Free Gift
Free Gift
  • Details

    A leave-in treatment mask for all hair types that clinically reverses damage in four minutes. The K18PEPTIDE™ works to repair damage from bleach, color, chemical services, and heat, restoring strength, softness, smoothness, and bounce to hair.

    This mask is powered by the patented K18PEPTIDE™, which is just the right size and molecular structure to reach the innermost layers of hair and re-connect broken keratin chains responsible for hair's strength and elasticity.

    Restores strength, softness, smoothness, and bounce
    Repairs damaged hair
    Easy leave-in formula delivers lasting results

    Clinical Results:
    In a clinical study on hair that was bleached 8 times, after 2 uses:

    -Biotech-powered K18PEPTIDE™ restored damaged hair by up to 82%

    Read more

  • How to use

  • Ingredients

  • Details
  • How to use
  • Ingredients

A leave-in treatment mask for all hair types that clinically reverses damage in four minutes. The K18PEPTIDE™ works to repair damage from bleach, color, chemical services, and heat, restoring strength, softness, smoothness, and bounce to hair.

This mask is powered by the patented K18PEPTIDE™, which is just the right size and molecular structure to reach the innermost layers of hair and re-connect broken keratin chains responsible for hair's strength and elasticity.

Restores strength, softness, smoothness, and bounce
Repairs damaged hair
Easy leave-in formula delivers lasting results

Clinical Results:
In a clinical study on hair that was bleached 8 times, after 2 uses:

-Biotech-powered K18PEPTIDE™ restored damaged hair by up to 82%

Directions for Use:
- In the shower:
-Shampoo, don‘t condition.

Once out of the shower:
-Using a towel gently dry hair until damp.
-Begin with one mL/one dime-size amount of K18 Mask.
-Only add more as needed. Average use is two mL/two dime-size amounts (this is a highly concentrated formula, so you‘ll need much less than traditional masks).
-Work evenly into hair from ends to roots.
-Let sit for four minutes to activate.
-Don‘t rinse out.
-Style as usual after the four minutes is up (fine to add heat protectant or styling product now).
-Use for the first four to six washes, then swap to maintenance mode and use as needed.

Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78 (K18PEPTIDE), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol

Reviews

4.3/5
4,324 reviews
Rating star Rating star Rating star Rating star
  • 5 Rating star
  • 4 Rating star
  • 3 Rating star
  • 2 Rating star
  • 1 Rating star
4.3/5
4,324 reviews
Rating star Rating star Rating star Rating star
  • 5 Rating star
  • 4 Rating star
  • 3 Rating star
  • 2 Rating star
  • 1 Rating star

WaveBabeZ

05/12/2024

5/5
User Review without direct purchase

BUY IT!

noticeably softer & better looking & feeling hair! ends feel soft & moisturized, look less damaged, smoother textured hair, didn’t need to use a lot. read bottle instructions before using! i used it after K18 detox shampoo and followed instructions on the bottles.

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

sg7771

05/12/2024

5/5
User Review without direct purchase

This makes my hair so noticeably soft. Repurchased several times

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

sperks09

04/12/2024

4/5
User Review without direct purchase

Post swimming routine

My toddlers are in mommy and me swim lessons each week. After each lesson, I use the peptide prep shampoo in the shower and the mask afterwards. Makes such a difference with all the chlorine exposure. Dropped one star because it does feel a bit heavy afterwards, and more difficult to style.

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

micchelleli

04/12/2024

5/5
Verified buyer

must get!!

This hair mask is so good!! My hair is super fried because I bleached it 3 times over the summer and I haven't found anything that gets rid of the frizz and moisturizes it, but this mask does exactly that. It's also super easy to apply.

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

Mollyk18

30/11/2024

5/5
User Review without direct purchase

worth

I have used this product for over a year and my hair has grown so much. I have super thick, wavy hair so my hair takes forever to grow. But this stuff has my hair growing so fast it’s crazy

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

Amber

27/11/2024

4/5
Verified buyer

K18 hair mask

Haven’t been using long enough to see results but makes my hair so soft and silk but is very expensive for the size

Translate with Google See original version

Originally posted on Sephora-uk

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

LCristina15

25/11/2024

1/5
User Review without direct purchase

Not for curly hair

If you have curly hair, don’t waste your money. Considering the high price, the results are disappointing. There are much better options on the market that work more effectively for curly hair.

Translate with Google See original version

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

KosmeticKels

24/11/2024

5/5
User Review without direct purchase

INCREDIBLE

Probably the greatest hair product on the market. Instantly detangles and moisturizes. You can even feel how hydrated it is when washing your hair again. Now a must have in my routine. LOVE this brand.

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

melissabrown104

19/11/2024

5/5
User Review without direct purchase

Def run to get!

I received this in the volume 27 Trendmood box and it’s worth allllll the hype! I love it!

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

mama1969

15/11/2024

1/5
User Review without direct purchase

Damaging

So, after hearing all the hype, I decided to give this a try on my fine, bleached (but somewhat healthy) long hair. I followed the instructions and was expecting positive results. Instead, this product completely damaged and changed the integrity of my hair. It was shocking, to say the least. My hair ended up frayed, frizzed, brittle and felt like straw. I could no longer even get a brush through my hair. I tried to reverse the damage by using deep treatments. But unfortunately nothing helped, and now 6 months later, my hair remains damaged by K18.

Translate with Google See original version

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

WhitneyWithh

15/11/2024

5/5
User Review without direct purchase

Sooo good!

Obsessed with this product and former olaplex user

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

Yas51286

14/11/2024

1/5
Verified buyer

so sorry but it didnt do ANYTHING to my hair. i have fine, highlighted hair, damaged hair.

Translate with Google See original version

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

JknitBelle

13/11/2024

4/5
User Review without direct purchase

Must-have for Fine Hair

This formula is light on my fine hair. I need that sort of formula.

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

AlexisRenee87

13/11/2024

5/5
User Review without direct purchase

Best Bond Builder!

If you dye or heat style your hair, you need this product! It has done more than any other hair product to improve the health of my hair, and that is saying a lot because I am obsessed with trying new hair products! I received this from My Trendmood Box and was so excited to get another as I have been using it for a couple of years now and will not go without it!

Translate with Google See original version

Recommend this product: Yes

Originally posted on sephora.com

Is the review helpful ?

Report inappropriate content

Reported

Report inappropriate content Reported

K18 offers a unique scientific approach to hair care, based on biotechnology. The products' clinically proven effectiveness is based on K18PEPTIDE™ technology, which repairs damage at the molecular level for all hair types (the result of bleaching, chemicals and heat). Born in hair salons, this technology allows you to express your creativity without fear of damage!