It reduces hair loss up to the 50%. Clinically tested efficacy. Biotin and lauric acid strengthen the hair's anchoring to the root, and caffeine optimizes the scalp's functions. It prolongs your hair's life and riduces hair loss caused by aging. Dermatologically tested after three months of regular use.Apply directly on scalp and damp or dry skin at least three times a week. Massage gently to absorb the product. Leave in. In serious hair loss cases, apply everyday.