Name: Retatrutide 20mg (10 Vials / Kit)
Brand: HPEBIO
SKU: HPE-RETATRUTID2
Price: 147.60 USD
Availability: InStock

What is Retatrutide?

Retatrutide (LY3437943) is a synthetic peptide carrying a fatty-acid side chain that promotes albumin binding and extended circulation, supporting once-weekly dosing schedules in clinical research settings. It is distinguished from earlier incretin-based candidates by combining activity at three receptors rather than one or two within a single molecule.

This listing is Retatrutide (10 vials × 20mg) from HPEBIO (China), sold on Stairway to Gray with escrow: your payment is held until the order arrives and only then released to the brand.

How it is understood to work

GLP-1 and GIP receptor activation are studied for glucose-dependent insulin secretion, slowed gastric emptying and reduced appetite signaling, mechanisms shared with earlier incretin therapies. The added glucagon-receptor agonism is the distinguishing feature of retatrutide, proposed to increase hepatic fatty-acid oxidation and overall energy expenditure alongside the incretin effects.

Research status

Retatrutide is an investigational compound that has advanced through Phase 2 human clinical trials examining obesity, type 2 diabetes and hepatic fat reduction, with published results describing substantial body-weight and liver-fat changes relative to placebo; it has not received regulatory approval and remains under active clinical investigation, so long-term safety and outcome data are still accumulating.

This listing: HPEBIO Retatrutide

Brand: HPEBIO
Kit: 10 vials × 20 mg (200 mg in total)
Price per vial: $14.76
Price per mg: $0.74
Other strengths: 30mg $199.00
Also sold by: AUverifiedPeptides 20mg $560.00 · UWA Biotech 20mg $175.00 · TFC Peptides 20mg $145.00 · HK Peptide 20mg $185.00 · Uther Peptide 20mg $185.00 · Vital Edge Science Retatrutide $78.00

Lab testing

HPEBIO published a Janoshik #199968 report for this compound. Test: Purity (HPLC). Result: 99.61% purity · 22.21mg. Tested Jul 15, 2026. Verification key UGUA1M7CESIU can be checked at janoshik.com.

View the report · How to read it (Testing 101) · Every report for this compound

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

Specifications

Compound: Retatrutide
Also known as: LY3437943
Class: Investigational triple GLP-1/GIP/glucagon receptor agonist
Form: Lyophilized (freeze-dried) powder
Molecular formula: C221H342N46O68
Molecular weight: ~4731.3 g/mol
Per vial: 20mg
Units per kit: 10
Brand: HPEBIO · China

Handling & storage

Supplied as a lyophilized powder; store unopened vials at -20C protected from light, and once reconstituted with bacteriostatic water keep refrigerated at 2-8C for use within the study’s defined timeframe.

Concentration check: adding 2 ml of bacteriostatic water to one 20mg vial gives 10 mg/ml. The Research Lab calculator in your dashboard works this out for any volume.

Questions

Is retatrutide an approved medicine?

No. It remains an investigational compound in clinical trials and has not received marketing approval from any regulatory agency, unlike some single-receptor incretin agonists that are approved drugs.

How does retatrutide differ from dual GLP-1/GIP agonists?

Retatrutide adds glucagon-receptor agonism on top of GLP-1 and GIP activity, a third mechanism studied for its distinct effect on hepatic fat oxidation and energy expenditure that dual agonists do not target.

How much Retatrutide is in this kit?

10 vials of 20mg each. The lab testing section above shows what the brand’s tested sample actually contained, where a report exists.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.