Olaplex no.0 intensive treatment 155ml

Think of No.0 as the primer to your No.3 treatment. No.0 can certainly works on it's own and will provide repair; however, the product is intended to work as a two-part process. OLAPLEX technology works best when the product is wet in the hair. No.0 is a watery liquid that will dry quickly. Using No.3 over it, keeps the hair damp so both products can continue to work during the process. The Stand Alone Treatment is the ultimate OLAPLEX experience; it intensively repairs hair and remains to be the most concentrated OLAPLEX experience.