Hair Perfector NO.3 from Olaplex is a super good moisturizing and effective rebuilding treatment for damaged hair. This treatment is called no. 3 because it is made for maintaining an Olaplex salon treatment at home, but it can also be used even if you have not received a salon treatment first. The cure is good for all hair types, but is especially good for a worn, damaged or dyed hair. The hair is constantly degraded through heat styling and continuous chemical treatments, so it is a good idea to use a good recovery cure approx. once a week. Olaplex Hair Perfector NO.3 is also suitable for extensions.