DL-Panthenol, also known as pro-vitamin B5, plays a crucial role in cosmetic formulations as a moisturizer, enhancing skin hydration and improving elasticity. It also has soothing properties, helping to alleviate irritation and redness in the skin. Furthermore, DL-Panthenol promotes healthy hair by improving its strength and shine. Lastly, it acts as a penetration enhancer, allowing other active ingredients to absorb better into the skin.