Oleic acid ek monounsaturated omega-9 fatty acid hai jo skincare mein emollient ke taur pe use hota hai. Yeh skin ko soft aur moisturized rakhta hai, aur dusre ingredients ko skin ke andar penetrate karne mein madad karta hai. Yeh naturally kaafi plant oils mein aur human sebum mein bhi paya jata hai.