K18 products contain K18Peptide's™. The K18 Peptide is the first long-chain peptide that can penetrate the hair cortex and permanently repair hair in just 4 minutes!
Until now, haircare products covered up damage with conditioning treatments that coat hair in oils, bringing superficial hydration and sheen, while repair treatments patch damage like internal glue – strong but brittle—and provide temporary results.
K18 is the first product that actually heals your hair from the inside out.