This concentrated, lightweight serum is clinically proven to increase hair density by up to 3 times in 16 weeks. Its clean, concentrated formula addresses signs of thinning and density loss with a proprietary density-boosting complex and microfluidic technology. It stimulates hair follicles and promotes scalp circulation for visible results with daily use. Increases hair density up to 3X in 16 weeks* Lightweight and fast-absorbing formula Stimulates hair follicles and scalp circulation 97% naturally derived ingredients Vegan, cruelty-free, Leaping Bunny certified HOW TO USE Section hair and apply 1–2 drops to the scalp, focusing on areas of concern like temples, crown, and hairline. Gently massage in. For best results, use daily on wet or dry hair.