No. 0 bottle should last 3-6 applications, based on hair length and density.

  1. Apply the No.0 to dry hair. Comb the product through to ensure saturation from root to tip.
  2. Leave the treatment on for a minimum of 20 minutes, more significant results occur when keeping it on longer!
  3. Once completed, rinse, shampoo, and condition. We recommend the OLAPLEX No. 4 Shampoo and OLAPLEX No.5 Conditioner.