Collection: K18

K18 Biomimetic Hairscience is an American hair biotech brand born from 10 years of scientific research — and a groundbreaking discovery: K18Peptide, a patented molecule that penetrates deep into the hair fibre and reconnects broken keratin chains in just 4 minutes.

Unlike traditional treatments that only work on the surface, K18 repairs hair from the inside out, with lasting, clinically proven results. The range is built around a simple, effective protocol: the Leave-In Molecular Repair Hair Mask, the iconic leave-in treatment that repairs damage from bleaching, colouring, chemical services and heat in just 4 minutes; the Peptide Prep Detox Shampoo, which removes 99% of product residue and 95% of sebum in a single wash to prep the hair fibre for treatment; the Damage Shield, a pH-protective conditioner; the Molecular Repair Hair Oil to smooth, nourish and protect the lengths; HeatBounce for heat protection with simultaneous molecular repair; and AstroLift, a repairing volumizing spray for fine, weakened hair.