ea Tree Biotin Shampoo for thinning hair - It reduces hair loss. Promotes thicker & fuller hair. The ELITE, natural hair loss solution! Uniquely formulated with nature’s best answers for thick and full hair. Contains Aloe Vera, Tea Tree, Biotin, Vitamin C, and Vitamin E, as well as being paraben-free, sulfate-free, gluten-free, and hypoallergenic.