The Peptide Encyclopedia

The complete plain-language reference to the drugs rewriting modern medicine. Ozempic. Tirzepatide. BPC-157. Retatrutide. Peptide medicine has gone from a niche corner of endocrinology to the most disruptive force in modern healthcare in only a few years. Whether you've heard about peptides from your doctor, a podcast, or a friend who lost forty pounds, you've probably come away with more questions than answers. The Peptide Encyclopedia is the reference that finally puts every major peptide in one place. Written for curious readers and informed patients alike, it covers 36 peptides across every major class — metabolic and weight loss, healing and recovery, growth hormone and longevity, and the cosmetic, cognitive, sexual, and immune categories. For every peptide you'll find: - Chemistry and mechanism explained in plain English - FDA-approved on-label uses and the science behind them - Off-label trends, including compounded and gray-market use - Reported benefits and what the evidence actually supports - Side effects, risks, and what your doctor should tell you - A clear bottom-line summary Featured peptides include: Semaglutide, Tirzepatide, Liraglutide, Retatrutide, Cagrilintide, Survodutide, BPC-157, TB-500, GHK-Cu, KPV, Sermorelin, CJC-1295, Ipamorelin, Tesamorelin, MK-677, Epitalon, SS-31, Melanotan, PT-141 (Bremelanotide), Selank, Semax, Cerebrolysin, Thymosin Alpha-1, Argireline, and many more. Also inside: a primer on what peptides actually are and how they work, a guide to reading chemical structures, a clear breakdown of on-label versus off-label versus research-only categories, a pharmacokinetics primer, a quick-reference comparison table, a glossary, and an alphabetical index. In an area of medicine moving faster than a 15-minute primary-care visit can keep up with, The Peptide Encyclopedia is the reference that respects your intelligence — neither hyping the drugs nor dismissing them. If you've ever wondered what Ozempic really is, asked whether BPC-157 is worth the hype, or wanted a single trustworthy source that takes peptide medicine seriously without selling you anything, this is your book. Published by Koki Publishing. First Edition, 2026.