Help get thicker, fuller-looking hair with Colorproof Biorepair Thicken Shampoo, a concentrated formula that helps to remove dead skin cells, build-up, and impurities that may impede hair growth. Designed to stimulate and exfoliate the scalp, this shampoo helps to nourish, strengthen, and repair weak hair, helping to give the volume you've always wanted. With its unique blend of ingredients, Colorproof Biorepair Thicken Shampoo improves the appearance of thinning hair, making it appear thicker and fuller.