D-Panthenol is valued in skin and hair care for its moisturizing properties. It has anti-inflammatory effects and soothes irritated and sensitive skin. For hair care application it is known for its humectant properties and its ability to improve the resistance of hair to mechanical stress. D-Panthenol is a clear, colorless and viscous liquid. It is practically odorless, slightly hygroscopic, and may crystallize on prolonged storage. It is soluble in water, freely soluble in ethanol, slightly soluble in ether, and insoluble in fats and oils.