Every time we open our TikTok app, we’re inundated with a new beauty trend users can’t stop raving about. While many aren’t worth a second thought, the “Botox in a bottle” videos left us wanting to know more. Though we’re in full support of people heading to an expert for whatever cosmetic treatments suit their fancy, we’re intrigued that there might be a needle-free method right at home. So, we tapped three dermatologists to weigh in. Meet the Experts Dr. Dendy Engelman is a New York City–based board-certified dermatologist and Mohs surgeon who specializes in medical and cosmetic dermatology. Dr. Tiffany Libby is a board-certified dermatologist and dual-fellowship-trained Mohs surgeon…