Retatrutide (GLP-3) Price Guide: Cost & Sizes Available

2026-04-03 · 6 min read

Retatrutide Pricing Overview

Retatrutide (marketed by AminoAccess as GLP-3) is a triple agonist peptide targeting GLP-1, GIP, and glucagon receptors. It is sold as a 10-vial kit in two sizes: 10mg ($345/kit) and 20mg ($515/kit).

Every order is a 10-vial kit, which keeps per-vial cost down for larger research protocols compared to sourcing single vials.

How Does Retatrutide Compare in Price?

Retatrutide is priced competitively relative to other metabolic research peptides. For comparison, semaglutide typically costs $80–150 per 5mg from comparable suppliers, while tirzepatide ranges $90–180. Retatrutide's triple-agonist mechanism provides unique research value not available from single- or dual-agonist compounds.

Researchers should factor in the per-milligram cost when comparing: AminoAccess retatrutide's 10mg kit ($345 for 100mg total) works out to $3.45/mg, with the 20mg kit ($515 for 200mg total) at $2.58/mg — substantial savings for dose-response studies.

What to Look for When Buying Retatrutide

When sourcing retatrutide for research, verify: high purity by reverse-phase HPLC, molecular weight confirmation via mass spectrometry, and a lot-specific Certificate of Analysis. AminoAccess makes all three available for download at aminoaccess.com/coa.

The peptide should be supplied as a lyophilized (freeze-dried) powder for maximum stability. Store at 2–8°C and reconstitute only immediately before use in your experimental protocol.

Available Sizes and Best Value

AminoAccess offers retatrutide as a 10-vial kit in 10mg ($345) and 20mg ($515). Both sizes are manufactured to the same high purity standard.

The 10mg kit offers the lowest entry cost for initial protocol testing, while the 20mg kit provides a lower per-milligram cost for larger dose-response studies.