2-O-Ethyl Ascorbic Acid ek stable, water-soluble Vitamin C derivative hai jo skin mein jaake ascorbic acid ban jaata hai. Yeh antioxidant protection deta hai, skin ko bright karta hai, aur collagen banane mein help karta hai. Regular Vitamin C se zyada stable hota hai, isliye sensitive skin wale bhi use kar sakte hain. Dark spots kam karta hai aur skin tone even out karta hai.