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Peptide database

Compare peptides side by side

Compare peptides by picking any two of 47: their status, uses, legal status, where their doses come from and whether there is a calculator.

Peptide comparison
ComparedSemaglutideTirzepatide
StatusApproved medicineApproved medicine
Legal statusFDA-approved (Ozempic, Wegovy, Rybelsus) for diabetes, weight and heart riskFDA-approved (Mounjaro, Zepbound) for diabetes, weight and sleep apnea
Used or studied forType 2 diabetes (Ozempic); Weight management (Wegovy); Lowers heart attack and stroke risk; Kidney disease and MASHType 2 diabetes (Mounjaro); Weight management (Zepbound); Obstructive sleep apnea
TypeGLP-1 and weight loss peptidesGLP-1 and weight loss peptides
Where doses come fromFrom the official labelFrom the official label
CalculatorYes (vials: 5, 10 mg)Yes (vials: 10, 20, 30 mg)
Also calledOzempic, Wegovy, Rybelsus, SemaMounjaro, Zepbound, Tirz

Read the full comparison: Semaglutide vs tirzepatide: which is stronger?

Facts side by side, not a recommendation. Each name links to its full guide, with sources and the dosage section.

How to compare peptides with this tool

Choose a peptide in each box and the table updates at once. Every peptide in the peptide database is included, from approved medicines like semaglutide to research peptides like BPC-157.

For a few popular pairs there is also a written comparison, linked under the table, that covers the research in more depth.

Frequently asked questions

How do I compare two peptides?

Pick one peptide in each box. The table lines up their status, uses, legal status, where their doses come from and whether they have a calculator, with links to each full guide.

Does this tell me which peptide is better?

No. It shows the facts side by side. Whether any medicine suits you is a decision for a licensed prescriber who knows your health.

Where do the doses come from?

Each peptide page lists doses only from an official label or a published trial, each with its source. Research peptides without human data are marked "no validated human dose".