Retatrutide (GLP-3) — 30mg research vials at 99%+ purity
Novanta supplies retatrutide, the investigational GIP/GLP-1/glucagon triple agonist, as a lyophilized powder for laboratory research. Every lot is third-party HPLC and mass-spec tested, ships from the United States within 24 hours, and arrives with a certificate of analysis.
- 99%+ purity, independently verified
- COA available for every lot
- Same-day shipping, free over $300
- Bulk and Build-a-Box discounts up to 20%
NR3-R30MGWhat is retatrutide?
Retatrutide (also referenced as LY3437943 or GLP-3) is a synthetic 39-amino-acid peptide engineered to activate three receptors at once: glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1) and the glucagon receptor. Where earlier research compounds such as semaglutide target a single pathway and tirzepatide targets two, retatrutide's triple mechanism is studied for combined effects on insulin signalling, gastric emptying and basal energy expenditure in preclinical models.
Because of that mechanism, retatrutide is one of the most requested compounds in metabolic research programs. Novanta manufactures under controlled conditions and releases only lots that clear 99% purity on independent analysis — see our third-party testing and certifications.
Retatrutide reconstitution reference
Retatrutide arrives lyophilized and is reconstituted with bacteriostatic water. The table below shows the concentration produced by common diluent volumes for a 30mg vial. For any other combination — including weight-based protocols, doses per vial, cost per dose and titration schedules — use the Novanta peptide reconstitution calculator.
| Vial | BAC water added | Concentration | Syringe reference (U-100) |
|---|---|---|---|
| 30mg | 1.5 ml | 20 mg/ml | 5 units = 1 mg |
| 30mg | 3.0 ml | 10 mg/ml | 10 units = 1 mg |
| 30mg | 5.0 ml | 6 mg/ml | 16.7 units = 1 mg |
Reference values for laboratory calculations only. Not dosing guidance for humans or animals.
Handling, storage and stability
Lyophilized retatrutide is stable at -20°C for long-term storage and tolerates ambient shipping temperatures for the duration of transit. Once reconstituted with bacteriostatic water, store refrigerated at 2-8°C, protect from light, and avoid repeated freeze-thaw cycles. Swirl rather than shake to preserve peptide integrity, and add diluent slowly down the side of the vial.
Pair retatrutide with other research compounds
Researchers frequently run retatrutide alongside supporting compounds. Build your own kit with the Build-a-Box tool for automatic 5%, 10% and 20% discounts, or start from a prebuilt bundle on the homepage.
Retatrutide research FAQ
What is retatrutide?
Retatrutide is an investigational triple agonist peptide that acts on the GIP, GLP-1 and glucagon receptors. It is studied in laboratory research for its effects on metabolic pathways, appetite signalling and energy expenditure. Novanta supplies retatrutide strictly as a research chemical.
How pure is Novanta's retatrutide?
Every retatrutide lot is tested by an independent third-party laboratory using HPLC and mass spectrometry, and released only at 99%+ purity. A certificate of analysis is available for each lot on our certifications page.
How is retatrutide reconstituted?
Retatrutide is supplied as a lyophilized powder and is reconstituted with bacteriostatic water. A 30mg vial reconstituted with 3ml of BAC water yields 10mg per ml. Use the Novanta reconstitution calculator to convert any vial strength, diluent volume and target dose into exact syringe units.
What vial sizes are available?
Novanta stocks retatrutide (listed as NR3-R) in 30mg vials, along with 10ml bacteriostatic water for reconstitution. Multi-vial pricing and Build-a-Box discounts of 5%, 10% and 20% apply automatically at checkout.
How fast does Novanta ship?
Orders placed before the daily cut-off ship the same business day; most orders leave the facility within 2-24 hours from the United States. Shipping is free on orders over $300.
Is retatrutide approved for human use?
No. Retatrutide is not approved by the FDA and is sold by Novanta for laboratory research use only. It is not for human or veterinary consumption, and Novanta is not a compounding pharmacy.
Order research-grade retatrutide
30mg vials, 99%+ verified purity, COA included, shipped from the US within 24 hours.
Shop retatrutide nowFor research use only. Not for human or veterinary consumption. Novanta Research is not a compounding pharmacy and makes no medical claims. All products are sold to qualified researchers for in-vitro laboratory research only.