Olaplex No.3 Hair Perfector is one of those absolute hair heroes that almost everybody’s hair can benefit from. This cult classic works to repair the damaged and broken disulphide bonds in each individual hair strand, immediately improving the strength and resilience of your hair. Most serious damage occurs to your hair through chemical processing, or excessive heat styling, but a lot of people also have naturally fragile hair, all which Olaplex will work to remedy. Depending on the level of sensitivity of your tresses you can use the treatment between 1-3 times a week, once for slightly damaged hair, and 3 times a week for noticeable breakage and loss of elasticity.