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K18 Leave-In Molecular Repair Hair Mask

4.7

(10 reviews)

Hair Care • Cream • 1.7 fl oz / 50 m

$75

20% Off with code WINTER20

EARN +750 POINTS WHEN PURCHASING THIS PRODUCT

Product Benefits

Utilizes K18Peptide™ to repair and reconnect broken keratin chains, reversing damage caused by chemical treatments, heat, and environmental stressors
Restores hair’s natural strength, making it less prone to breakage and improving its overall elasticity and resilienc
Transforms rough, brittle hair into soft, smooth strands that are easier to manage and style

Expert Review

Effective for all hair types, whether curly, straight, coarse, fine, or chemically treated, ensuring healthy, vibrant hair for everyone.

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The K18 Leave-In Molecular Repair Hair Mask is a revolutionary leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. Powered by K18Peptide™, this advanced formula repairs and restores damaged hair by reconnecting broken keratin chains caused by chemical treatments, bleach, heat, and environmental stressors. This lightweight, leave-in mask nourishes and strengthens hair, leaving it softer, more resilient, and healthier-looking with each use. Ideal for all hair types, the K18 mask provides instant results, transforming dry, brittle strands into smooth, revitalized hair that shines with vitality. Simply apply to damp hair and let the mask work its magic—no rinsing required.

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.

To apply the K18 Leave-In Molecular Repair Hair Mask, follow these simple steps: Shampoo and Towel-Dry: Start by washing your hair with a sulfate-free shampoo. Gently towel-dry your hair to remove excess moisture, leaving it damp but not wet. Apply the Mask: Dispense a small amount of the K18 mask (about 1-2 pumps) based on your hair length and thickness. Apply the product evenly to your hair, focusing on the mid-lengths and ends where damage is most likely. Leave It In: Do not rinse out. Allow the mask to work its magic by leaving it in for 4 minutes. During this time, the K18Peptide™ will repair and reconnect the hair’s broken keratin bonds. Style as Usual: After 4 minutes, you can proceed to style your hair as desired. There's no need for additional products, as the mask continues to work even after styling. For best results, use the mask once per wash, and enjoy healthier, stronger hair with each application.

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My hair isn’t overly damaged since I don’t bleach or use heat, but I still had issues with breakage and dryness at the ends. It’s very fine and straight. This product made my hair so much easier to manage after washing, and I noticed a significant improvement after just a few uses. Even when I skip the K18 and use my regular conditioner, my hair is shinier and silkier. I’ll definitely be buying it again!

I was doubtful at first, but after just three uses of the mask and oil, my hair went from brittle and damaged to regaining its curl and showing signs of recovery.

Years of straightening ruined my curly hair, leaving me with damaged strands and a hatred for my natural look. K18 has revived my curls, saving my hair and giving me the confidence to embrace my natural texture again.

Postpartum left my hair thin, brittle, and prone to breaking before it could grow long. I tried Olaplex and KBond without much success. My hairdresser recommended K18, and after just one use, my hair felt and looked stronger and healthier. I’m a lifelong customer now!