• Chapter 1: Peptides, Promises, and Better Questions
• Chapter 2: What Peptides Are—and Why the Name Is Not Enough
• Chapter 3: From a Biological Signal to a Real-World Effect
• Chapter 4: How to Read a Peptide Study
• Chapter 5: The US Map: Approval, Prescribing, Compounding, and Research

• Chapter 6: GLP-1: The Biology Behind the Headlines
• Chapter 7: Semaglutide: What the Evidence Actually Shows
• Chapter 8: Tirzepatide: A Different Approach to Metabolic Treatment
• Chapter 9: Beyond the Scale: Muscle, Nutrition, and Long-Term Function
• Chapter 10: The Next Wave: Reading the Metabolic Pipeline

• Chapter 11: BPC-157: Recovery Claims Under the Microscope
• Chapter 12: Thymosin Beta-4 and TB-500: Getting the Identity Right
• Chapter 13: Growth Hormone and IGF-1: Signals, Measurements, and Trade-Offs
• Chapter 14: CJC-1295, Ipamorelin, and the Secretagogue Question
• Chapter 15: Tesamorelin and the Limits of Extrapolation

• Chapter 16: Collagen Peptides: A Closer Look at Everyday Use
• Chapter 17: GHK-Cu: Molecule, Formulation, and Route
• Chapter 18: Skin and Hair Claims: Looking Past the Ingredient List
• Chapter 19: Thymosin Alpha-1, KPV, and LL-37: Immune Claims in Context
• Chapter 20: Gut Health and Inflammation: Asking More Precise Questions

• Chapter 21: MOTS-c and the Mitochondrial Promise
• Chapter 22: Epitalon, Telomeres, and the Meaning of Longevity
• Chapter 23: Semax and Selank: Brain Claims and Human Evidence
• Chapter 24: DSIP and Sleep: Measuring What Matters
• Chapter 25: Bremelanotide and Melanocortins: Indication Matters

• Chapter 26: Stacks, Cycles, and the Problem of Attribution
• Chapter 27: Safety: What We Know, What We Miss, and Who Was Studied
• Chapter 28: Quality, Testing, and the Online Marketplace
• Chapter 29: A Better Conversation With Your Clinician
• Chapter 30: Your Decision Framework—and How to Stay Current

• Appendix A: Peptide Reference Map
• Appendix B: Define the study and the outcome
• Appendix C: Prepare for the visit
• Appendix D: Connect the report to the material
• Appendix E: Define the decision and compare options
• Appendix F: Glossary and Update Log

The e-book and audiobook bundle on this English page are in English. The paperback currently offered here is the German edition and is labelled accordingly.

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For €21.90 incl. VAT, you receive the complete English EPUB and 36 English MP3 tracks: all 30 chapters and six appendices, approximately 9 hours 37 minutes in total.

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The English original includes 30 chapters, six appendices A–F and 336 references, with a glossary, practical worksheets and update log.

This is the U.S. edition. The Germany/EU supplements belong to the separate German edition.

The book helps you assess studies, claims and unanswered questions. It does not replace individual medical advice or treatment and does not recommend self-treatment.