Olaplex No. 3 Hair Perfector is your client's retail portion of the Olaplex System and contains the same active ingredient as both the No.1 and No. 2. This enables the client to repair and maintain strong, healthy hair in between services as it continues to link bonds within the hair. Instructions for the take home Olaplex: No. 3 Hair Perfector: The client is to apply a generous amount to towel-dried hair, comb through and leave on for a minimum of 10 minutes or longer, then rinse, shampoo and condition. This is NOT a conditioning treatment to be left on the hair. The longer this is left on, the more effective it will be. This may be used more than once a week if necessary.