Retatrutide: when can you actually buy it?
You cannot, and this page exists to say so with a date rather than a shrug. Retatrutide is a triple agonist, hitting the GIP, GLP-1 and glucagon receptors in one weekly injection, developed by Eli Lilly and Company, and it holds no approved application in the United States. Every other page on this site carries a price; this one carries the only public schedule there is instead — the phase 3 trial programme.
When will Retatrutide be available, and what will it cost?
No date has been published by anyone, and no price exists because nothing is for sale. What is public is the trial programme, and it sets a floor. Retatrutide has 9 phase 3 trials in obesity or overweight registered on ClinicalTrials.gov, enrolling 8,757 people between them, the largest of them 2,335. 4 have completed and 5 are still running, with the last reaching primary completion in 2028-10. A sponsor can file on part of a programme rather than wait for the whole of it, so these dates bound the earliest plausible approval rather than predicting one. Drugs@FDA was checked on 2026-08-28 and holds no application for this molecule, against six for semaglutide — the absence is a finding, not a lookup failure.
The trial programme
| Sponsor | Eli Lilly and Company |
|---|---|
| Approved in the US | no — no application in Drugs@FDA |
| Phase 3 trials in obesity or overweight | 9 |
| Completed | 4 of 9 |
| Still running | 5 |
| Participants enrolled across them | 8,757 |
| Largest single trial | 2,335 participants |
| Last primary completion | 2028-10 |
Counted from ClinicalTrials.gov on 2026-08-28, restricted to phase 3 studies whose registered condition is obesity, overweight or weight. Approval status checked against Drugs@FDA the same day.
What is worth knowing now
Retatrutide is the most searched of the three and the one most often sold illegally, under the label of a research peptide. That trade is worth being plain about: a vial bought that way is not the drug in the trials. It has no approved label, no verified content, no pharmacy accountable for what is in it, and no FDA registration behind whoever made it — the differences that this site spends most of its pages measuring, absent all at once. The trial programme is the reason the legitimate version does not exist yet: five of nine phase 3 obesity studies are still running, and the last reaches primary completion in October 2028.
Retatrutide, answered
- Is Retatrutide FDA approved?
- No. Drugs@FDA holds no approved application for it, checked on 2026-08-28. That check is worth stating precisely because the same query returns six applications for semaglutide, so the absence is a real answer rather than a failed search. Until an application is approved there is no legal route to buy it in the United States outside a clinical trial, at any price.
- When will Retatrutide be available?
- Nobody has published a date, and the honest floor comes from the trials rather than from a press release. 5 of its 9 phase 3 trials in obesity or overweight are still running, and the last reaches primary completion in 2028-10. A company can file on part of a programme rather than wait for all of it, so that is a floor and not a forecast — but it does rule out the near term.
- What does Retatrutide cost?
- Nothing, because it cannot be bought. There is no list price, no cash price and no savings programme, and any figure circulating is either a forecast or an invention. When it is approved and sold, it will get a card on this site with the price read from the seller's own page and the date it was read, the same as everything else here.
- Retatrutide is sold online as a research peptide. Is that the same drug?
- It shares a name and nothing that can be checked. The molecule in Lilly's trials comes with a manufacturing chain a regulator has inspected and a dose someone is accountable for; a research-peptide vial comes with a disclaimer saying it is not for human use, which is the seller's own statement that it is not a medicine. There is no approved label to compare a copy against, because there is no approved product — so nobody, including the buyer, can say what a given vial contains.
What you can buy today
Everything approved for this job, each with the maintenance price read from the seller's own page and the date it was read.
Last updated 2026-08-28 — trial registry and Drugs@FDA checked