K18 Professional Molecular Repair Hair Mist 150ml is a leave-in treatment from the celebrated American haircare brand K18. Powered by the patented K18PEPTIDE™, the lightweight mist works at a molecular level to reconnect broken polypeptide chains and disulfide bonds in damaged hair — restoring strength, softness and elasticity in just four minutes per application. The professional 150ml format is designed for salon use and for committed home users who already understand the brand's protocol.
About K18
K18 is an American haircare brand founded by Suveen Sahib and Britta Cox in Los Angeles, built on more than a decade of biotechnology research into hair-bond repair. The brand's flagship K18PEPTIDE™ is a bioactive peptide designed to reconnect broken keratin chains inside the hair fibre — a different mechanism from traditional protein-fill or oil-based repair treatments. The Professional line is the salon-grade format used during chemical services.
Key benefits
- Molecular bond repair: K18PEPTIDE™ reconnects broken polypeptide chains and disulfide bonds — the building blocks of healthy hair.
- Strengthens before chemical services: Apply before bleach, colour, perms or relaxers to reinforce the hair's structure under stress.
- Restores elasticity: Hair regains spring, bounce and resilience after just four minutes of application.
- Lightweight, leave-in formula: Won't weigh hair down or interfere with chemical and colour services.
- Visible improvement in 4 minutes: Clinically proven to reverse hair damage from bleach, colour, chemical services and heat styling.
Key ingredients
- K18PEPTIDE™ (sh-Oligopeptide-78): The patented bioactive peptide that does the repair work.
- Hydrolyzed Wheat Protein & Starch: Supportive proteins that reinforce the cuticle.
Who it's for
This mist is best suited to professional stylists and committed home users with damaged hair from bleaching, colouring, chemical services or frequent heat styling. The PRO Mist is the salon-protocol version — apply before chemical services to protect the hair, or as part of a structured repair routine for severely damaged hair.
How to use
- Shampoo the hair without conditioner. Towel-dry until damp.
- Mist generously throughout the hair, focusing on the mid-lengths and ends.
- Comb through to distribute evenly.
- Wait 4 minutes for the K18PEPTIDE™ to penetrate and repair.
- Do not rinse. Style as usual.
- If used before a chemical service, proceed with the service without rinsing the mist out.
Size: 150ml. For external use on the hair only.
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