Anti-hair loss shampoo 250ml Retrò.specific What is Anti Hair Loss Shampoo? It is a Retrò Shampoo. Specific TerapyHair Anti-Hair Loss 250 ml. How does it work? A Shampoo specifically formulated to combat hair loss. Thanks to its formulation rich in selecting components such as plant-based extract, amino acids and vitamins. Used regularly, it stimulates the natural growth cycle of the hair.