Panthenol (provitamin B5) skin mein convert hota hai pantothenic acid mein, jahan ye humectant ki tarah kaam karta hai aur skin barrier function ko support karta hai. Isse skin ka moisture lock rehta hai aur hydration improve hoti hai. Yeh soothing properties bhi deti hai aur thoda anti-inflammatory effect deta hai, isliye isse topical formulations mein use kiya jata hai.