PROYOU the amplifier shampoo 1000 ml PROYOU the amplifier shampoo 1000 ml is a professional grade volumizing shampoo that helps to add body, fullness, and bounce to hair. It works by gently cleansing the scalp and hair while providing nourishment and strength to the strands. The formula is enriched with natural ingredients like Biotin, Quinoa, and Lecithin that help to promote healthy hair growth while boosting volume. The shampoo is free of parabens, sulfates, and silicone, making it suitable for all hair types. It also has a gentle and refreshing scent, making it perfect for daily use.