The special nutritional formula with biotin, deeply nourishes and enriches thin, weak, dull hair. Inhibits hair cracking, hair becomes healthier, stronger, voluminous and shinier. It activates the metabolic processes of the hair follicle and contributes to healthy hair growth, protects hair from premature bleaching. How to apply: Step 1. Apply to clean, towel dry hair. Step 2. Leave for 5-10 minutes, then rinse thoroughly.