Add Yahoo as a preferred source to see more of our stories on Google. "Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." FWIW, I was hella skeptical at ...

Part of my job as Cosmo's beauty editor is to test every skincare device and tool that comes across my desk or social feeds. LED masks? I've legit tried them all. Microdermabrasion devices? I've got ...