What is Vitamin B5 (Panthenol)? Why is it necessary to apply products with the moisturizing effect of Vitamin B5 to maintain hydration throughout the day? What exactly is panthenol? How do Vitamin B5 and panthenol soothe the skin, repair the skin barrier, and enhance elasticity to improve signs of skin aging? As age increases, the skin gradually loses collagen, and external factors such as alcohol...