Much like skincare and makeup, most products work best with a primer. Eyeshadow sits best and lasts longer when put on top of an eyeshadow primer, and makeup sits better on the face after a solid skincare routine. 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.
No.0, simply: Apply the No.0 to clean dry hair. Comb the product through to ensure saturation. Wait 10 minutes, then apply OLAPLEX No.3 Hair Perfector directly on top of No.0. Comb again to saturate thoroughly, then let the treatment sit for another ten minutes. This treatment is a minimum of 20 minutes, though, just like the No.3 on its own, more significant results occur when keeping it on longer! Once completed, rinse, shampoo, and condition. We recommend the OLAPLEX No. 4 Shampoo and OLAPLEX No.5 Conditioner.
Each bottle of No.0 contains approximately 4-6 uses, just like the No.3. No.0 is non-toxic, vegan, and cruelty-free. It's also: Paraben Free, Phosphate Free, Phthalate Free, Sulfate Free, Gluten Free, Aldehydes Free, DEA Free, Aldehydes Free, and Formaldehyde Free