Olaplex N°5 Bond Maintenance Conditioner 250ml is a highly-moisturising, reparative conditioner that helps leave hair easy to manage, shiny and healthier looking with each use. Colour-safe. Helps maintain bonds to strengthen all hair types and textures. How To Use After using Olaplex No°4 Bond Maintenance Shampoo, apply a generous amount from scalp to tip. Leave on for a minimum of 2-3 minutes, then rinse. Part of the Olaplex "Take me Home" range.