With the growing popularity of beauty influencers and viral skin care routines, social media is playing an integral role in shaping how people care for their skin. Popular trends like the glass-skin look, the Russian manicure, and at-home red light therapy have sparked widespread attention, but how safe and effective are they? Ahead of National Healthy Skin Month in November, board-certified dermatologists offer insights into the effectiveness, safety, and long-term impact of these skin care practices.