What it is: A set of four products for fine-to-medium, thinning hair types.Who it's for: Ideal for thinning, fine-to-medium hair types.Set includes:- invati ultra advanced™ Exfoliating Shampoo Light (6.7 oz.): a shampoo for thinning hair gently exfoliates with wintergreen-derived salicylic acid, removing oil and environmental residues that can clog pores- invati ultra advanced™ Thickening Conditioner (6.7 oz.): a conditioner for fine hair that instantly thickens with a botanical plumping blend, increasing diameter from root to tip- invati ultra advanced™ Revitalizing Scalp Serum (5 oz.): a scalp serum that features our follicle vitality complex, which neutralizes, strengthens and invigorates follicles to support healthy-looking hair- invati ultra advanced™ Fortifying Leave-In Treatment (3.4 oz.): a hair treatment that adds resilience to the cuticle to stabilize thinning hair fibers from root to tip, protecting from hair fall due to breakage Paraben-free; phthalate-free; sulfate-free; silicone-free; mineral oil-free; synthetic fragrance-free Dermatologist tested Vegan Made in the USA