K18 Leave-In Molecular Repair Hair Mask is a revolutionary biomimetic hair treatment that works at the molecular level to repair and restore damaged hair. This 50ml leave-in formula uses patented peptide technology to reconnect broken keratin chains within the hair structure. Key features: • Leave-in treatment - no rinsing required • Biomimetic peptide technology • Repairs hair at molecular level • 50ml/1.7 fl oz size • Works on all hair types • Progressive results with continued use The K18 mask utilizes a unique bioactive peptide that mimics the natural structure of hair keratin. Unlike traditional conditioning treatments that coat the surface, this mask penetrates deep into the hair cortex to repair damage from chemical treatments, heat styling, and environmental factors. For best results, apply to clean, towel-dried hair and leave in. Can be used as a regular part of hair care routine for ongoing repair and maintenance.