OLAPLEX No.3 Hair Perfector is a global bestselling at-home treatment, not a conditioner, that reduces breakage and visibly strengthens hair, improving its look and feel. It will restore your hair's healthy appearance and texture by repairing damage and protecting hair structure. How to Use: Apply a generous amount from roots to ends on damp, towel-dried hair. Comb through once and leave on for a minimum of 10 minutes or more. Rinse from hair, shampoo, and condition. Pro Tip: Use No.3 before you wash your hair and leave it on for 10 min or longer to maximize your OLAPLEX hair repair system. When to Use: Use once a week or two to three times a week for damaged hair.