Hydrating Scalp Serum for Healthy, Fuller Looking Hair

A lightweight scalp serum from OUAI designed to hydrate and support fuller-looking hair. Fast-absorbing and non-greasy, it targets dryness and scalp discomfort while adding moisture for improved manageability. Suited for thinning or fine hair and daily use, the formula feels weightless and helps refresh the scalp without leaving a heavy residue.