63%
would repurchase
4.1/5
package quality

price range

description

A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services and heat – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.

ingredients

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

Reviews


5.0
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2 months ago

I really works. Only product works on my hairs. Makes them glossy. Really amazing wants to order more can’t live without that product and best size for 3 month….. recommend for all…

About reviewer (4 reviews)

Age25-29

SkinSensitive, Medium Brown

HairBrown

EyesBrown



5.0
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2 months ago

I’m 67 and this product keeps my hair glossy and beautiful. It’s the GOAT for me!

About reviewer (3 reviews)

Age56 & Over

SkinNormal, Olive, Not Sure

HairBlack, Curly, Coarse

EyesBrown


5.0
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4 months ago

Very expensive but sure has helped my 2 process bleached highlighted hair. I blow dry it and straight iron it. This product makes it feel undamaged again. It's shiny and stronger. I have purchased...

About reviewer (17 reviews)

Age56 & Over

SkinDry, Medium, Neutral

HairBlond, Wavy, Fine

EyesHazel


5.0
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5 months ago

I am confident that this is improving the quality of my hair. I had used bleach a couple of times and as a result, had some breakage and some areas where the texture was like wool. The wool went...

About reviewer (18 reviews)

Age44-55

SkinNormal, Medium, Cool

HairBrunette, Wavy, Coarse

EyesHazel


5.0
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6 months ago

This product had been way better for my hair than Olaplex#3. Plus the treatments ect, it wasn't till I found this. Did I truly understand what an amazing product this is. About my hair I've...

About reviewer (1080 reviews)

Age44-55

SkinCombination, Fair, Cool

HairBrunette, Wavy, Medium

EyesGreen


1.0
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8 months ago

Waste of money. Have gone through a full 150ml bottle and almost a whole 50ml bottle since the start of the year and it has made little to no difference. Used it for 6 consecutive washes plus every...

About reviewer (1 reviews)

Age44-55

SkinCombination, Fair

HairBrown

EyesBrown


4.0
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a year ago

My stylist used this on me and I just bought the sample size. So far it’s been great! My hair is fine and I have to be careful about what products I use but this isn’t too heavy.

About reviewer (115 reviews)

Age36-43

SkinOther, Other

HairBlond

EyesGreen


2.0
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a year ago

I have found my holy grail product and it is all i use along with shampoo and olaplex nr 3 once a week, argan oil for hair ends.. I was also told it is possible to use silicones free conditioner if...

About reviewer (253 reviews)

Age44-55

SkinSensitive, Fair, Warm

HairBlond, Wavy, Fine

EyesHazel


1.0
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a year ago

I DO NOT understand the hype. Bummer, because I wish it did something for my level 9 bleached hair.

About reviewer (23 reviews)

Age44-55

SkinCombination, Fair

HairBrunette

EyesBlue


1.0
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a year ago

My ends are naturally dry and this didn't make any difference...waste of money

About reviewer (1355 reviews)

Age36-43

SkinCombination, Fair

HairBlond

EyesBlue


4.0
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a year ago

The manufacturer of the K18 Leave-in Molecular Mask claims: "Reverse Hair Damage in 4 minutes for Hair that Looks New!" Sounds fantastic to me. For reference, my hair is blonde, normal to dry,...

About reviewer (712 reviews)

Age44-55

SkinDry, Fair, Cool

HairBlond, Wavy, Fine

EyesGray


5.0
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a year ago

I have found my holy grail. I am getting rid of all my other hair products. This is the most impressive hair conditioner I have ever used in my 69 years on the planet. I have used it twice and my...

About reviewer (16 reviews)

Age56 & Over

SkinOther, Fair

HairBlond

EyesBlue


5.0
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a year ago

We just got this in at work so I had to try it for research. I was a fan of the Olaplex #8 until I tried this; this product has changed my hair for the better. My curls have reappeared, markedly...

About reviewer (702 reviews)

Age44-55

SkinCombination, Fair-Medium, Warm

HairRed, Curly, Fine

EyesGreen


4.0
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2 years ago

I have fine, thin, highlighted hair that suffers a fair amount of damage from bleach. There is nothing, other than stopping the bleaching, that will "heal" my hair but I have tried various...

About reviewer (193 reviews)

Age44-55

SkinCombination, Fair, Neutral

HairBlond, Straight, Fine

EyesBlue


3.0
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2 years ago

Overrated and overpriced. This had some amazing reviews but didn't live up to the hype. It added a little hydration and some smoothing like many other eave in treatment s and styling products. I...

About reviewer (1 reviews)

Age19-24

SkinOther, Other

HairOther

EyesOther


5.0
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2 years ago

So glad I tried this! It does for me what the whole Olaplex line together does not do. I have had this for about a month and have used it 3 times. My aging, fine, color treated hair is so hard to...

About reviewer (38 reviews)

Age44-55

SkinDry, Fair-Medium, Neutral

HairBlond, Straight, Fine

EyesGreen


1.0
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2 years ago

I was so expecting for this product to work on my damage hair as there are so many excellent reviews out there, but I was very disappointed to say the least. Not only it didn't work or repair my...

About reviewer (2 reviews)

Age56 & Over

SkinAcne-prone, Fair-Medium

HairOther

EyesOther


1.0
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3 years ago

I was expecting to love this based off of the stellar reviews from my gal pals. However this does not even begin to compare to my much cheaper HG - Olaplex No 6 Bond Smoother leave in conditioner....

About reviewer (525 reviews)

Age30-35

SkinOther, Other, Neutral

HairBlond, Other, Fine

EyesOther


5.0
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3 years ago

I tried the K18 leave-in hair mask since it's a time-saver due to the leave-in concept: you just shampoo the hair and then put the K18 in towel-dried hair and that’s it, well, according to...

About reviewer (456 reviews)

Age30-35

SkinCombination, Fair, Warm

HairBrown, Straight, Medium

EyesBlue