Where to Buy GLP-3 Online?
Where to buy GLP3 online based on our comparison of vendors after reviewing their pricing, purity and transparency. Order it for research purposes from a vendor below.
Our convenient price comparison tool summarizes number of tests, price per mg, and shipping times.
REVIEWED BY
Marcus Reinhardt — Chemical Researcher, Lead Analyst & Peptide Research Advisor
Marcus Reinhardt is a chemical researcher specializing in sustainable materials and advanced formulation science, with research experience in compound development and health optimization. He reviews all Peptide Insider educational content for scientific accuracy, strength of supporting evidence, and practical relevance. Editorial team.
How to Verify COA
Hundreds of vendors now offer GLP-3, but researchers should do their due diligence. We will list recommended vendors below that have been 3rd party tested – with lab results right on the product page.
On the COA, the purity should be 99% or higher. Having a lot-matched COA is an important component most sellers either don’t provide or cannot provide.
GLP-3 Shipping Info
The peptide arrives as a lyophilized powder, which stays stable at room temperature while in transit. No cold storage is needed until it’s reconstituted. Refrigerate the vial once it arrives and keep it out of direct light inside your research facility.
Is Buying GLP-3 Online Legit?
If it is strictly for non-human research use and the paperwork holds up then it can be. Interest in GLP exploded after Lilly’s Phase 3 TRIUMPH-1 topline in May 2026 where participants averaged 28% body-weight reduction over 80 weeks. Headlines like that attract counterfeiters fast and unverified listings. Beware of listings with no COA and double check they aren’t recycling an old one.
Note: Research vials with GLP-3 are not Retatrutide, if you are looking to take Retatrutide the only legitimate way to do so is to be part of the clinical trials or wait until the FDA approves it.
Primary Sources
- Retatrutide Phase 2 obesity trial — New England Journal of Medicine
- Lilly TRIUMPH-1 Phase 3 topline results — May 2026
- ClinicalTrials.gov record NCT05929066 (TRIUMPH-1)
What Does GLP-3 Cost?
This peptide is genuinely hard to synthesize and the pricing shows it.
Amino Club charges:
- $69.99 for 10mg
- $134.99 for 20mg
- $199.99 for 30mg
That works out to $6.67 to $7.00 per mg, right in line with the $6.00 to $7.00 research-market range. The 30mg vial is the better per-mg deal. - Other Vendors:
- Ascension Peptides: $99.99 for 10mg
- EZ Peptides: $82.00 for 12 mg
Ready to order GLP-3?
Research use only. Third-party tested, shipped in 3 to 5 business days.