So you’ve splurged on one of the best LED face masks and want to be sure you get the most out of it? The good news is that dermatologists say these types of red light therapy devices really do work, ...

“Using an at-home mask is like going to the gym,” says Shereene Idriss, MD, a board-certified dermatologist and founder of Idriss Dermatology in NYC. To truly see any skin care benefit, you ...