Achieve salon-worthy hair with the Olaplex No.3 & No.0 Duo. Pairing pre-wash & reparative treatments, the duo works in harmony to leave hair feeling stronger & softer with a healthy-looking shine. Set Contents: No.3 Hair Perfector 100ml A pre-wash treatment designed to rescue & restore damaged hair as a result of colouring, bleaching & styling. Formulated with a bond multiplying system, it works to re-link broken hair bonds to minimise the risk of split ends & breakages. Expect silky-smooth results. No. 0 Intensive Bold Building Hair Treatment 155ml A bond-building treatment designed to prep hair to improve the absorption of subsequent products & achieve optimum reparative results. Acting as a primer for the No.3 Hair Perfector, it helps to strengthen & replenish damaged hair. The No.3 is free of DEA, aldehydes, formaldehyde & Butylphenyl Methylpropional (Lilial).