But before adding anything to a triathlon training plan, the more useful question isn't "does this work," it's "what happens if I use this." For any athlete who races under USA Triathlon, USAT-sanctioned events, or any federation that follows the World Anti-Doping Code, that answer has real consequences. This post breaks down what peptides actually are, where they stand under WADA and USADA rules, and how to think about the recovery tools that are actually worth your time.