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K18

K18 Professional Molecular Repair Hair Mask – Leave-In Treatment for Damaged Hair 150ml

373.99

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  • Reconnects broken keratin and disulfide bonds at a molecular level
  • Restores up to 91% reduction in damage with consistent use
  • Delivers strength, softness, smoothness, and elasticity
  • Hair & Nails

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K18 is designed for people with damaged hair from bleaching, coloring, or heat styling who want a quick repair treatment they can leave in without rinsing. The formula uses K18Peptide to reconnect broken bonds in the hair structure, and works in just 4 minutes to restore strength and softness. It's suitable for all hair types and comes in a 150ml size for regular at-home maintenance.

K18Peptide™ — A patented biomimetic peptide that mimics the natural structure of hair to reconnect broken keratin chains and disulfide bonds deep within the hair cortex, restoring strength and elasticity from the inside out.

Behentrimonium Methosulfate — A gentle conditioning agent that detangles hair, reduces friction between strands, and improves combability without buildup or heaviness.

Cetyl Alcohol — A fatty alcohol emollient that softens and smooths the hair cuticle, improving overall texture and manageability after treatment.

Isopropyl Alcohol — Aids in rapid absorption and penetration of the K18Peptide™ into the cortex, maximizing the treatment's repair efficacy.

Water (Aqua) — The primary carrier base that enables even distribution of active ingredients throughout the hair shaft for uniform coverage.

The K18 Leave-In Molecular Hair Mask (150ml) is a clinically proven, salon-grade treatment powered by the patented K18Peptide™, a biomimetic peptide that penetrates deep into the hair cortex to reconnect broken keratin and disulfide bonds caused by bleach, color, chemical services, and heat styling.

Unlike traditional masks, this no-rinse formula works in just 4 minutes to visibly restore strength, softness, smoothness, and elasticity from the inside out, delivering up to 91% reduction in damage with consistent use. Suitable for all hair types and textures, it is the go-to professional repair treatment trusted by stylists worldwide and now available for at-home use in the 150ml size, ideal for regular maintenance and long-lasting results.

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Estimated delivery: 1–3 business days

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How to Use

After shampooing, squeeze out excess water. Apply a small amount evenly through mid-lengths to ends. Leave in for 4 minutes. Do not rinse. Style as usual.

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