Retatrutide vs Tesamorelin: prices, identity and regulatory status (2026)
Retatrutide and Tesamorelin are different research compounds, not substitutes for each other: Retatrutide is a single compound (C221H342N46O68); Tesamorelin is a 44-amino-acid peptide (C221H366N72O67S). Neither product has a current in-stock price right now. Retatrutide has no Drugs@FDA application; Tesamorelin shares its active ingredient with an FDA-approved prescription medicine.
Retatrutide vs Tesamorelin: current prices and packages
| Compared property | Retatrutide | Tesamorelin |
|---|---|---|
| Category | GLP-1 | Growth hormone |
| Compared package | 30mg | 10mg |
| Lowest current price | No current in-stock price | No current in-stock price |
| Price per labelled mg | — | — |
| Package sizes | 5mg, 10mg, 15mg, 20mg, 30mg, 40mg, 48mg, 50mg, 60mg | 2mg, 5mg, 10mg, 20mg, 50mg |
| Vendors with current prices | 0 | 0 |
| Form at this package | No listing | No listing |
| Stock | Out of stock | Out of stock |
Prices exclude shipping. The price per labelled mg is always given per mg, so different package sizes compare directly; it is shown only for single-compound vials and powders with a labelled mass. Blends, capsules, liquids and IU-labelled packages are compared by package total.
Identity, regulatory status and registered research
| Compared property | Retatrutide | Tesamorelin |
|---|---|---|
| Molecular formula | C221H342N46O68 | C221H366N72O67S |
| Molecular weight | 4731 g/mol | 5136 g/mol |
| Sequence | — | YADAIFTNSYRKVLGQLSARKLLQDIMSRQQGESNQERGARARL (44 residues) |
| CAS Registry Number | — | 218949-48-5 |
| Registered clinical trials | 34 (11 active) · Phase 3: 14, Phase 2: 4, Phase 1: 15 | 20 (3 active) · Phase 4: 2, Phase 3: 2, Phase 2: 9 |
| Human intervention studies | 7 | 7 |
| US regulatory status | No Drugs@FDA application (checked October 7, 2026) · Drugs@FDA search | FDA-approved prescription medicine with this active ingredient: Egrifta (BLA 022505; checked October 7, 2026)MarketedEGRIFTA · BLA 022505 · 2010Research listings are not these medicines. |
Identity data: PubChem, FDA GSRS and EPA records; registry counts: ClinicalTrials.gov; status: Drugs@FDA. A matching name does not verify the contents of a supplier's lot.
Key human studies
Retatrutide
- Efficacy and safety of retatrutide, a GIP, GLP-1, and glucagon receptor agonist, in people with type 2 diabetes and inadequate glycaemic control with diet and exercise (TRANSCEND-T2D-1): a double-blind, randomised, phase 3 trial. Lancet (London, England), 2026
- Effects of retatrutide on body composition in people with type 2 diabetes: a substudy of a phase 2, double-blind, parallel-group, placebo-controlled, randomised trial. The lancet. Diabetes & endocrinology, 2025
- Triple hormone receptor agonist retatrutide for metabolic dysfunction-associated steatotic liver disease: a randomized phase 2a trial. Nature medicine, 2024
Tesamorelin
- Effects of Tesamorelin on Neurocognitive Impairment in Persons With HIV and Abdominal Obesity. The Journal of infectious diseases, 2025
- Efficacy and safety of tesamorelin in people with HIV on integrase inhibitors. AIDS (London, England), 2024
- Effects of tesamorelin on non-alcoholic fatty liver disease in HIV: a randomised, double-blind, multicentre trial. The lancet. HIV, 2019
Studies are listed as records, newest first; they are not evidence that a research product is safe or effective.
Where to buy each compound
Retatrutide
Retatrutide, also identified as LY3437943, is an investigational agonist at GIP, GLP-1 and glucagon receptors. A peer-reviewed phase 2 trial and a later sponsor-described phase 3 program are different levels of source evidence.
No vendor has a current in-stock price for this package.
Retatrutide prices →Price history →Tesamorelin
Tesamorelin is a catalogue entry whose compound-specific reference review has not yet been completed.
No vendor has a current in-stock price for this package.
Tesamorelin prices →Price history →Related comparisons
Questions
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