Concentrated combination of essential oils for sensitive scalp affected by itching, redness, and flaking. It also protects the scalp before, during, or after hair chemical treatments. It can be applied directly in the right amount or mixed with the product used. How to use: Apply Serenity 03 to the scalp and massage until fully absorbed. Do not rinse. We recommend using Serenity 01-04 shampoo before the treatment.