Part of a 3-step restructuring system for damaged hair. Deeply penetrates to hair shaft to work from inside. Heals hair weakened by chemical processes, heat styling and external exposure. Fortified with quinoa protein to help strengthen hair. Helps hair restore health, silkiness and shine. Apply weekly on cleansed hair from roots to ends and leave on for 2-5 minutes. Then rinse off. Deeply penetrates to hair shaft to work from inside. Heals hair weakened by chemical processes, heat styling and external exposure. Fortified with quinoa protein to help strengthen hair