Oils lipid-based ingredients hote hain jo skincare mein skin ko soft karte hain, transepidermal water loss ko kam karte hain, aur formulations mein base ya carrier ke taur par kaam karte hain. Inme plant-derived oils jaise jojoba, argan, mineral oils, aur synthetic esters shamil hote hain. Ye ingredients skin ko nourish karte hain aur moisture barrier ko strengthen karte hain.