Difeel Biotin Pro-Growth Shampoo.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, Phtalate Free, Color Safe Formula.