VLP-2 (TR)
Tirzepatide research peptide in 10, 20 and 30 mg vials.

Retatrutide research peptide
VLP-3 (RT) is the retatrutide research peptide in our catalog. Retatrutide (LY3437943) is an investigational 39-residue peptide studied at the GIP, GLP-1 and glucagon receptors. It is not FDA-approved.
You can order it in 10, 20 and 30 mg lyophilized vials, each with its batch number on the label.
Online checkout is being set up. Send a request and we'll confirm the price and availability by email.
Specifications
| Product | VLP-3 (RT) |
|---|---|
| Category | Metabolic research |
| Compound | Retatrutide |
| Development code | LY3437943 |
| Molecular formula | C221H342N46O68 |
| Molecular weight | 4731 g/mol (PubChem) |
| CAS number | 2381089-83-2 |
| Backbone | 39 amino acids, including non-standard residues |
| Receptors studied | GIP, GLP-1 and glucagon |
| Regulatory status | Investigational. Not FDA-approved (October 2026) |
| Form | Lyophilized powder in a sealed, crimp-capped glass vial |
| Sizes | 10 mg, 20 mg, 30 mg |
| Supplier SKU | RT10, RT20, RT30 |
| Supplied by | Vinnix Alpha Amino |
| Intended use | Laboratory research only. Not for human or veterinary use. |
Keep the sealed vial in a fridge at 2 to 8 °C for short-term storage, or a freezer at -20 °C for longer. Protect it from light, and let the vial reach room temperature before you open it so moisture doesn't condense inside.
Every vial from Vinnix Alpha Amino carries a batch number. The lab report for that batch covers identity by mass spectrometry and purity by HPLC. Email us the batch number and we'll send it.
We are moving to PeptideDelivery labels. Until that is complete, your vial may arrive with our supply partner's label. Contents, size and batch number are the same.
No. VLP-3 (RT) is sold strictly for laboratory research. It isn't a drug, supplement or food, and it must not be used in people or animals.
Lyophilized powder in a sealed, crimp-capped glass vial. The batch number is printed on the label.
Keep the sealed vial in a fridge at 2 to 8 °C for short-term storage, or a freezer at -20 °C for longer. Protect it from light, and let the vial reach room temperature before you open it so moisture doesn't condense inside.
Yes. Email info@peptidedelivery.io with the product name and the batch number on your vial, and we'll send the report for that batch.
Keep browsing
Tirzepatide research peptide in 10, 20 and 30 mg vials.
GLP-1 analogue research peptide in 10, 20 and 30 mg vials.
PeptideDelivery sells research compounds for laboratory use only. None of our products are for human or veterinary use.
By entering you confirm you are 21+ and agree to our terms of sale and research use disclaimer.