What to Know About the ‘Anti-Aging’ Peptide Shots Flooding Social Media

Droves of wellness enthusiasts, biohackers, social-media influencers, and celebrities are injecting experimental “anti-aging” peptides in the hopes of boosting energy, losing weight, sleeping better, healing injuries, enhancing libido, and even getting tanned. 

Most of these therapies haven’t been approved by the U.S. Food and Drug Administration (FDA), and many people in the U.S. are buying them online off the unregulated “gray market,” often from suppliers in China. For most of these drugs...