Shampoo isn’t just for cleaning hair—the right formula can be your first step to thickening and filling out thinning hair and stopping breakage. From postpartum or stress-induced hair loss to natural hair thinning with age,

The Zenagen Revolve Thickening Shampoo Treatment is an in-shower wash that strengthens frail strands and promotes new hair growth over time. Made for all hair types and textures, the formula is entirely drug-free—and,

With proven ingredients like biotin, caffeine and niacinamide, this color-safe pair aims to promote stronger, thicker locks.

Hair growth is a complex biological process that involves the hair follicles, the cells within the scalp, and various nutrients. It is a natural cycle that all humans experience, but it can vary in speed,