Denatured alcohol (alcohol denat.) basically ethanol hota hai jissmein additives milaye hote hain taaki vo peene ke laayak na rahe. Skincare mein iska use solvent ki tarah hota hai, antimicrobial properties deta hai, aur jaldi dry hone waali lightweight finish deta hai. Yeh dusre ingredients ke penetration ko bhi enhance karta hai. Oily aur combination skin ke liye helpful hota hai kyunki quick-absorbing hota hai, lekin sensitive skin walo ko careful hona chahiye kyunki slightly drying ho sakta hai.