DERMA Tonic Soothing Scalp Tonic for Sensitive & Irritated ScalpGLYNT DERMA Tonic is a professional soothing scalp tonic specially developed to calm sensitive, dry, and irritated scalp. This lightweight leave in formula helps restore the natural balance of the scalp while providing instant comfort and freshness. The calming ingredients help reduce scalp irritation, dryness, and tension while supporting a healthier scalp environment for stronger and healthier looking hair. It refreshes the scalp without leaving