Want healthier, fuller-looking hair? Upgrade your scalp care with this Rejuvenating Scalp Serum. Clinically proven ingredients Vitamin E, Rosemary, and Caffeine help stimulate and nourish the scalp without leaving hair feeling weighed down or greasy feel at the roots. Use on damp or dry hair to round out your routine in a way that helps rejuvenate the scalp and boost hair health.