K18 Leave-In Molecular Repair Hair Mask – 5ml Trial Size
K18 Leave-In Molecular Repair Hair Mask – 5ml Trial Size
A 4-minute leave-in treatment that clinically reverses hair damage, restoring your hair to its healthiest, most youthful state. Infused with our patented K18Peptide™, this at-home treatment works deep within the hair to repair even the most extreme damage caused by bleaching, coloring, heat, and chemical services.
Key Benefits
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Clinically proven to reverse hair damage in just 4 minutes
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Repairs damage from bleach, color, chemical treatments, and heat
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Restores strength, softness, smoothness, and bounce
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Works leave-in for lasting results — doesn’t wash away
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Vegan, color-safe, and cruelty-free
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91% original strength* | 94% original elasticity*
*Results observed in a clinical study using the mist and mask during a bleaching treatment. Individual results may vary depending on hair type and history.
How It Works
Unlike traditional repair products, the K18Peptide™ travels deep into the inner layers of hair, reconnecting broken keratin chains. The result is hair that looks and feels renewed, with improved strength, softness, smoothness, and bounce — noticeable from the very first use.
How to Use
In the shower:
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Shampoo hair — do not condition
Out of the shower:
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Towel-dry thoroughly
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Begin with 1 pump of K18 Mask, adding more depending on hair length, thickness, and condition
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Work evenly through hair from ends to roots, one pump at a time
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Let sit for 4 minutes to activate
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Do not rinse
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Style as usual
Recommended Routine:
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Use for the first 4-6 consecutive washes for best results
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Then, use every 3-4 washes to maintain hair strength
Do’s & Don’ts
Do:
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Use a clarifying shampoo if your hair has product buildup
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Wait the full 4 minutes before styling or applying other products
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Use consecutively for 4-6 shampoos to see ongoing results
Don’t:
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Condition before applying (you likely won’t need it after K18)
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Overuse — a little goes a long way
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Rinse out — this is a leave-in treatment
Ingredients
Water (Aqua), 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
