BEST SHAMPOO FOR THIN HAIR - Deeply Cleanses hair while promoting healthy hair growth. NATURAL HAIR LOSS SHAMPOO - Fortified, strengthening formula with Biotin, a water-soluble vitamin that's a part of the vitamin B family. Your body needs biotin to help convert certain nutrients into energy. BEST HAIR GROWTH SHAMPOO - Biotin plays an important role in the health of your hair, skin, and nails. A lack of Biotin can lead to hair loss. IDEAL SHAMPOO FOR THINNING HAIR AND HAIR LOSS MEN OR WOMEN - Strengthening formula leaves hair stronger, fuller, and thicker while encouraging healthy hair growth. BEST HAIR THICKENING SHAMPOO: Our Pro-Growth Biotin Shampoo works to keep your hair color vibrant while giving your hair manageability, softness, and shine. Sulfate Free - Paraben Free - Phthalate Free - Color Safe Formula DIRECTIONSWet hair thoroughly and apply shampoo. Massage into roots and scalp, working up a lather. Rinse thoroughly.