This patent-pending advancement in scalp support is the first of its kind: an extremely fast-absorbing, lightweight and restorative hair serum formulated with Ashwagandha Exosomes to boost cell renewal and naturally activate visibly thicker, stronger hair in as little as 90 days. Nutrafol Hair Serum is designed to complement Nutrafol’s daily hair growth nutraceuticals for optimized results. For best results, keep consistent.