MagnaRoller Scalp Massager for Hair Growth - Hair Loss Treatment for Men and Women with Thinning, Dry and Dull Hair - Increases Blood Flow to Scalp & Hair follicles for Thicker, Healthier Hair. Whole earth magnets are positioned to optimize blood flow to the scalp Specifically designed protrusions or fingers compress the scalp and individual hair follicles Insert two fingers in both ends of the MagnaRoller - then gently roll across your scalp. Iron and Zinc - help hair follicles grow. Vitamin D - activates hair growth. Protein - boosts you hair strenght. Omega 3 Fatty Acids - hydrates hair. Biotin - essential for hair growth.