For noticeably thinning chemically treated hair, System 4 delivers denser-looking hair and restores moisture balance. Specially designed for noticeably thinning, fine, chemically-treated hair. It delivers denser-looking hair while protecting the scalp and providing moisture balance to coloured hair. A lightweight conditioner that helps provide hair resilience and control moisture balance. HOW TO USE: After cleansing, distribute onto scalp and throughout the hair. Leave on 1-3 minutes. Rinse well. Use daily