The ideal treatment for scalps with sebum and/or dandruff .It helps to prevent dandruff and re-establish the balance of the scalp. contributes to reducing itchiness.How to use: before washing hair, apply on the dry scalp, line after line, and spread evenly while massaging delicately; leave to act for 5/7 minutes. Add small quantities of lukewarm water and massage hair. Rinse out. Recommended frequency: as an intensive treatment, twice per week for 1 or 2 months; then once per week.