Retatrutide Research Peptide
Retatrutide — USA Made, ≥99% Purity
4.9 177 verified reviews- 39-residue, lipidated triple-agonist research peptide in a 10mg vial
- USA manufactured in GMP-certified California and Arizona laboratory facilities
- ≥99% purity target with third-party HPLC, mass spectrometry, and batch COA
Choose a vial size before adding to cart.
For research purposes only. Not intended for human consumption, medical use, diagnosis, treatment, or prevention of disease.
Specifications
Lot R1399- CAS
- 2381089-83-2
- Molecular mass
- 4,731.33 g/mol
- Purity target
- ≥99% (3rd-Party HPLC Tested)
- Form
- Lyophilized Powder
- Origin
- Manufactured, Formulated & Packaged in CA/AZ, USA
- Storage
- Store at -20°C (Freeze) or 2–8°C (Refrigerated) protected from light
What is Retatrutide?
Retatrutide, also called LY3437943, is an investigational 39-amino-acid peptide with a fatty-diacid modification. It was engineered as a single molecule capable of activating GIP, GLP-1, and glucagon receptors in experimental systems.
Researchers study retatrutide to understand how three nutrient- and energy-signaling receptor pathways interact. It remains investigational and is not FDA approved for human use, so this material is positioned strictly for controlled non-clinical research.
How It Works
Activates GIP receptors: This pathway is studied for roles in nutrient-responsive signaling and metabolic regulation.
Activates GLP-1 receptors: Researchers examine downstream signaling related to glucose-dependent and energy-balance pathways.
Activates glucagon receptors: The third activity supports investigation of hepatic signaling, substrate use, and energy-expenditure mechanisms.
Every lot, on the record
Independent third-party HPLC evaluates the purity target, while mass spectrometry confirms molecular identity. Both results are documented in one combined, batch-specific Certificate of Analysis.
- Identity (LC-MS)
- Confirmed
- Appearance
- White Lyophilized Powder
| Analyte | Method | Specification | Result | Pass/fail |
|---|---|---|---|---|
| Identity | LC-MS | GLP RT | ||
| Purity | HPLC-UV | 99.79% | ||
| Net Content | 11.74 mg |
Chromatogram
Mass confirmation
- Identity (LC-MS)
- Confirmed
- Appearance
- White Lyophilized Powder
| Analyte | Method | Specification | Result | Pass/fail |
|---|---|---|---|---|
| Identity | LC-MS | GLP RT | ||
| Purity | HPLC-UV | 99.87% | ||
| Net Content | 22.75 mg |
Chromatogram
Mass confirmation
Why Source from 321 Peptides?
Lot history 8 released lots
Every batch released under this compound, with the figure reported for each.
| Lot | Reported | Purity | Net content | COA |
|---|---|---|---|---|
| R1399 | 2026-06-01 | 99.79% | 11.74 mg | |
| R1340 | 2026-06-01 | 99.87% | 22.75 mg | |
| RE-72936 Superseded | 2026-05-12 | 99.64% | 20.06 mg | Pending |
| RE-73513 Superseded | 2026-04-30 | 99.88% | 20.08 mg | Pending |
| RE-43145 Superseded | 2026-04-23 | 99.46% | 10.02 mg | Pending |
| RE-44299 Superseded | 2026-04-08 | 99.83% | 10.04 mg | Pending |
| RE-43722 Superseded | 2026-03-19 | 99.58% | 10.03 mg | Pending |
| RE-74090 Superseded | 2026-02-25 | 99.71% | 20.10 mg | Pending |
