The Hair Gain Hydrating Shampoo is a 250ml refillable bottle featuring active ingredients such as Peptides and Marshmallow Root. It is designed for all hair types and is sulphate-free, paraben-free, and silicone-free. Made in the United Kingdom by the brand hair-gain-official-store, this shampoo is specifically formulated to promote hair growth and hydration, making it an ideal choice for those looking to improve the health and appearance of their hair.