H24 reporting for duty! The ultimate undercover agent, will reverse damage and return stressed strands to former glory in just 4 minutes. Clinically proven to strengthen hair by up to 312%, the H24 Complex Leave-In Repair Hair Mask has been formulated with four proprietary ingredients for maximum impact:+ Fibrehance - to build new bonds within the hair+ Procutigen Bond - to prevent damage, breakage and moisture loss+ Col-Frag - to hydrate and smooth+ Elaya Renova - to protect the hair from high heat and UV damage