Castor oil (Ricinus communis seeds se milta hai) ek thick aur creamy oil hai jo ricinoleic acid se bhara hota hai. Skincare mein ise emollient aur occlusive moisturizer ke taur par use kiya jata hai. Ye skin ko soft banata hai, moisture lock karta hai, aur formulations mein smooth texture add karta hai. Cosmetics mein bhi commonly use hota hai.