Peptide therapy sits in a different lane than weight management: the people exploring it are usually already doing the work and looking for support with recovery, energy, sleep, libido, or healthy aging. This section covers what the research actually says about compounds like NAD+, BPC-157, TB-500, Sermorelin, MOTS-C, Kisspeptin, and PT-141, how they're used in a clinical setting, and what questions to ask before starting anything. Every protocol we discuss is prescribed and monitored by a physician, so the goal here is informed decisions rather than hype.