Peptide lip treatments are the latest skincare trend. Learn what they are, what they do, and whether or not you should try ...

“Other ingredients such as capsaicin, menthol, cinnamon cause slight irritation which brings increased blood flow leading to a temporary swelling effect that makes the lip look plumper.

Over-the-counter lip plumpers work as mild irritants, generating blood flow to the lips, which causes a short-term plumping effect that goes away after a few hours. Lip plumpers offer a temporary ...