D-Pantolactone ek lactone derivative hai jo pantothenic acid (vitamin B5) aur panthenol se related hai. Skincare mein isko humectant aur skin-conditioning agent ke taur par use karte hain. Yeh ingredient skin ke moisture ko lock karta hai aur skin barrier ko strengthen karta hai. Oily, dry, sensitive sab tarah ki skin ke liye suitable hai. Regular use se skin hydrated aur soft feel hota hai.