The Hairgain Scalp Foam Leave-In Scalp Treatment is a 50ml product designed to promote thicker hair and prevent hair loss. It is suitable for all hair types and features active ingredients such as Biotin and Caffeine. This foam formulation is free from sulphates, parabens, and silicones, making it a gentle and effective choice for adults of any gender. With a fragrance scent, this treatment from the Hairgain brand is a great addition to any hair care and styling routine for those looking to improve the health and beauty of their hair.