Do you know how to decipher the ingredients label on your moisturiser? Or whether you should be using retinol? Or what the difference is between AHAs and BHA? Relax and let the Vogue Skincare Alphabet break it down. What are they? Emollients are supple, lubricating agents that form a layer over the epidermis. There are both synthetic emollients, such as squalene and mineral oils, and natural emollients such as lanolin and cocoa butter. What are they used for? ...