NEW briogeo megastrength caffeine + biotin peptide density serum

key benefits This lightweight, fast-absorbing and clinically-tested serum increases hair density by up to 3X and boosts follicle activity by up to 31% with daily use.* Our unique Density Boosting Complex features naturally powerful ingredients to support thicker, fuller, healthier-looking hair. *Compared to baseline in a 16-week study of 35 participants. Fragrance-free. 97% naturally-derived, vegan + Leaping Bunny certified cruelty-free.