Shay Natural Stimulating Hair Growth Biotin Shampoo is a sulfate free shampoo for natural, curly, textured, dry, damaged, thinning, or slow growing hair, formulated with biotin, rosemary extract, castor oil, and ginger oil to gently cleanse buildup, stimulate the scalp, strengthen strands, reduce breakage, and support thicker, fuller, healthier looking hair.