-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 & external exposure -Fortified with quinoa protein to help strengthen hair -Helps hair restore health, silkiness & shine -Apply weekly on cleansed hair from roots to ends & leave on for 2-5 minutes. Then rinse off Product Line: Aveda - Hair Care Product Size: 150ml/5oz