Real structure: semaglutide at the GLP-1 receptor · PDB 7KI0 · motion schematic
The GLP-1 and peptide atlas
What these molecules actually do inside you.
Ozempic, Mounjaro, retatrutide, BPC-157. Follow each molecule through the body in 3D, see how strong the evidence really is, and check what the law says where you live. Every fact sourced.
The atlas in numbers
- Molecules explained
- 36
- Countries tracked
- 12
- Sourced legal records
- 432
- Dated events
- 69
The atlas
From approved medicines to internet peptides
Approved GLP-1 medicine
Semaglutide
Semaglutide copies a gut hormone called GLP-1. It helps the pancreas release insulin when blood sugar is high, slows the stomach a little, and quiets hunger signals in the brain. A fatty side chain lets it stick to a blood protein, so it lasts about a week in the body. It is approved medicine.
Approved. Approved by a major regulator after large trials. Approved GLP-1 medicine
Tirzepatide
Tirzepatide is a small protein-like drug (a peptide, 39 building blocks long) that copies two gut hormones, GIP and GLP-1. Together they help the body control blood sugar and appetite. A fatty side chain lets it hitch a ride on a blood protein, so half of it is still there after about five days, and it is given once a week. It is approved for type 2 diabetes and weight management, and in the US for sleep apnea.
Approved. Approved by a major regulator after large trials. In clinical trials
Retatrutide
Retatrutide is an experimental once-a-week injection from Eli Lilly. It copies three natural gut and body hormones at once (GIP, GLP-1 and glucagon). In large trials, people lost a lot of weight, but it is not approved anywhere yet. Lilly says it plans to ask the US FDA for approval in early 2027.
Phase 3. Large trials comparing it with placebo or other drugs. Oral GLP-1
Orforglipron
Orforglipron is a once-a-day tablet that copies a gut hormone called GLP-1. Most drugs like it are peptides that must be injected. This one is a small, non-peptide molecule that survives being swallowed. It is approved in the US and UK for weight management. The UK has also approved it for type 2 diabetes.
Approved. Approved by a major regulator after large trials. Trending peptide
BPC-157
BPC-157 is a short chain of 15 building blocks (amino acids) made in a lab. It copies part of a protein first found in stomach juice. In rats and cells it seems to help tissue repair, but it has never been approved as a medicine anywhere, and only a handful of tiny human studies exist.
Animals. Tested in animals, not properly in people. Trending peptide
GHK-Cu (copper peptide)
GHK-Cu is a tiny protein piece made of three building blocks (glycine, histidine, lysine) holding onto a copper atom. Our blood contains a little of it naturally. It is used in some skin creams. Human studies are few and small, and mostly test creams. Most other claims come from cells or animals. No drug regulator has approved it as a medicine.
Small human. Small or uncontrolled studies in people.
Around the world
Is it legal where you live?
The same molecule can be an approved medicine in one country and banned in the next. Pick a country to see every rule, with the official source.
Radar
Latest changes
2026-09-29
The atlas launches: 36 molecules, 12 countries
First public version of GLP1 Base: every approved GLP-1 medicine, the late-stage pipeline and the most-discussed peptides, with evidence levels, body-journey explanations and source-cited legal status in 12 countries and regions. Official sources will be re-checked every two weeks.
For professionals
Know the day the rules change
Radar Pro alerts and briefs for clinics, pharmacies and agencies, plus ClaimGuard audits of GLP-1 marketing against real FDA and FTC actions.