ions overnight renewal serum +51% boost in scalp moisture in just 1 night**Tested on 32 women, after using product one time.This lightweight scalp serum defends against visible signs of premature scalp aging. Strengthens and renews scalp barrier. Soothes irritated scalp, helping reduce the look of redness and dryness, leaving the scalp soft, supple and nourished. Improves scalp hydration.