The Medicine shelf covers peptides that regulators have approved or that are in late clinical trials. Here the evidence is strongest, because approved drugs come with labels, defined doses and safety data from large studies. The guides explain how these medicines were developed, what their trials measured and how approved products differ from look-alike powders sold online.
Good entry points are the story of insulin, the first peptide medicine, and how a gut hormone became the GLP-1 drug class. For the newest weight-loss drugs, the survodutide, tirzepatide and retatrutide comparison sets out which ones are approved and which are still investigational.
GLP-1 Medicines: How a Gut Hormone Became a Blockbuster Drug
From Gila monster saliva to some of the most talked-about drugs on the planet. What GLP-1 is, what the medicines do, and what to keep in mind.
October 22, 2026
Insulin: The Peptide That Changed Medicine
In 1922 a 14-year-old boy near death received the first insulin injection. The story of the first peptide drug is also the story of modern pharmacology.
October 22, 2026
Ipamorelin vs Tesamorelin Compared With CJC 1295 in Research
Two pathways to growth hormone release, one approved drug and two research peptides. How tesamorelin, CJC-1295 and ipamorelin differ in mechanism and evidence.
October 22, 2026
SS 31 Peptide Dosage Guide to Elamipretide Research and Approval
SS-31 is elamipretide, now approved for Barth syndrome. How it targets mitochondria, what its trials found and how label, trial and online doses differ.
October 22, 2026
Using a PT 141 Dosage Calculator With Proper Reconstitution in Research
What PT-141 (bremelanotide) is, how vial concentration math works, how labs reconstitute freeze-dried peptide and what is known about storage after mixing.
October 22, 2026
Melanotan 1 MT1 Guide to Trial Results and Label Dosage
MT1 is afamelanotide, approved as the Scenesse implant for erythropoietic protoporphyria. Learn its label dose, trial results, skin safety and how it differs from melanotan II.
October 22, 2026
Tesamorelin Results Before and After in Clinical Trials
What the Egrifta phase 3 trials showed about visceral fat, timing, regain after stopping and weight, and why online before and after photos mislead.
October 22, 2026
How Much Bacteriostatic Water to Mix With 5mg of Semaglutide in the Lab
Concentration math for a 5 mg semaglutide vial, what bacteriostatic water is, and why approved pens need no mixing after the FDA shortage ended.
October 22, 2026
How Much Is Ozempic in Mexico and What US Travelers Should Know
Which GLP-1 brands are sold in Mexico, what shapes Ozempic and Mounjaro prices, Mexican prescription rules, US import limits and 2026 counterfeit alerts.
October 22, 2026