The K18 Professional Molecular Repair Hair Mist 150ml is a salon pre-treatment that strengthens hair before chemical services, using the patented K18Peptide to restore elasticity and reinforce hair against damage from bleach, colour, and other professional processes. This lightweight, leave-in mist works in just 4 minutes to prime hair for stronger, longer-lasting salon results, giving stylists a healthier canvas before colour or lightening work begins.

Why This Pre-Treatment Mist Works

With a mildly alkaline pH of 7.5-8.0, the K18 Professional Molecular Repair Hair Mist gently swells the hair cuticle so the K18Peptide can reach the cortex and target damage sites at a molecular level. By resetting pre-existing damage, it creates a healthier starting point before colour or chemical work and restores up to 99% of elasticity in clinical testing. The biomimetic peptide reconnects broken polypeptide chains and helps reinforce disulfide bonds for strength along the length and width of the hair. Made without emollients, the mist will not interfere with chemical or colour services, so results apply more evenly and tend to last longer.

Ideal For

This professional molecular repair mist is suited to all hair types, because the K18Peptide works at a molecular level where every hair shares the same structure. It is especially valuable for hair that is bleached, highlighted, colour-treated, or compromised by repeated chemical processing, where strength and elasticity need restoring before the next service. It is designed for salon, pre-service use by stylists rather than as a daily at-home leave-in; for ongoing maintenance between appointments, the K18 leave-in mask is the recommended companion. For personalised advice on chemical services and the right routine for your hair, consult your hair professional.

• sh-Oligopeptide-78 (K18Peptide): the patented biomimetic peptide that reconnects broken keratin chains to rebuild strength from the inside out

• Hydrolyzed Wheat Protein: helps reinforce and condition the hair fibre during processing

• Hydrolyzed Wheat Starch: supports a smooth, weightless finish without build-up

• Propylene Glycol and Polysorbate 20: aid even delivery of the active peptide along the strand

1. Before chemical or professional services, lightly mist hair with water; do not saturate.

2. Section hair and apply the recommended number of K18 Mist sprays per section, increasing for longer, denser, or more damaged hair.

3. Work the product through and let it sit for 4 minutes to activate.

4. Do not rinse out. Dry hair and process the service as usual, then continue with the K18 mask step to complete the molecular repair routine.