Rated Peptides
Best supplier · 25 shops · October 2026

Best triple-agonist class suppliers: 25 shops ranked by score

Triple-agonist class peptides are listed by 25 of the suppliers we score, 147 listings between them once every size is counted. Ranked by editors' score, Licensed Peptides leads at 8.2 out of 10, asking $124.99 for 10 mg, no certificate on the product page; Ascension Peptides follows at 7.5. The cheapest 10 mg listing is $44.09 at Alpha Peptides, which scores 6.7 and shows a certificate on the page; the typical price at that size is $104.50. 5 of the 18 shops carrying the 10 mg size put a certificate on the product page, and 9 of the 25 suppliers score 6.5 or better. This page answers which shop; the price page answers what it costs, size by size.

Updated · Order = editors' score · Every price and size · Editorial scores, not user reviews

Disclosure: the people behind this site have a financial interest in Licensed Peptides and Peptide Perfection, two of the suppliers ranked here. We scored them with the same formula we apply to every supplier and changed nothing on this page because of that connection.

RankSupplier10 mg listingPriceCertificate
1
Licensed Peptideslicensedpeptides.com
8.2
LP3-R - 10mg, 1 pack$124.99$12.50/mgNot on the pageReview Open
2
Ascension Peptidesascensionpeptides.com
7.5
R-10no 10 mg listing; nearest is size not stated$100Not on the pageReview Open
3
Pure Peptide Labspurepeptidelabs.shop
7.2
GLP-3 RT 10mg$99.95$10.00/mgNot on the pageReview Open
4
Paramount Peptidesparamountpeptides.com
7.2
GLP-3 R 12mgno 10 mg listing; nearest is 12 mg$170$14.17/mgOn the pageReview Open
5
Koi Peptideskoipeptides.com
7.1
GLP 3 (Reta) - 10 mg$89.95$9.00/mgOn the pageReview Open
6
Evolve Peptidesevolvepeptides.com
6.8
GLP-3 RT 10 mg$159.90$15.99/mgNot on the pageReview Open
7
Alpha Peptidesalpha-peptides.com
6.7
GLP-3 RT – MG Amount: 10 MG$44.09$4.41/mgOn the pageReview Open
8
Alpha Labs Peptidesgoalphalabs.com
6.7
GLP3-RT (10mg)$62.99$6.30/mgOn the pageReview Open
9
Peptide Perfectionpeptideperfection.com
6.7
GLP3-R Pen - 10mgno 10 mg listing; nearest is 10 mg (pen)$155.99$15.60/mgOn the pageReview Open
10
Nexaphnexaph.com
6.4
NXP-3P (10 vials/Kit) 6MGno 10 mg listing; nearest is 6 mg × 10$19.80$3.30/mgNot on the pageReview Open
11
Peptide Warehousepeptide-warehouse.com
6.3
GLP-3 (R)no 10 mg listing; nearest is size not stated$125.99Not on the pageReview Open
12
Prime Peptidesprimepeptides.co · FDA letter on file
5.9
Retatrutide - 10mg$110$11.00/mgOn the pageReview Open
13
Loti Labslotilabs.com
5.9
R3TX 10mg (GLP-3)$149.99$15.00/mgNot on the pageReview Open
14
Umbrella Labsumbrellalabs.is · FDA letter on file
5.9
GLP-3R (LY-3437943) PEPTIDE VIAL - 10 Milligrams$149.99$15.00/mgNot on the pageReview Open
15
Blue Sky Peptideblueskypeptide.com
5.7
Reta (GLP-1/GIP/GCG) 10mg$109.97$11.00/mgNot on the pageReview Open
16
Receptor Chemreceptorchem.co.uk
5.2
Reta 10mg$88.89listed £69.99$8.89/mgNot on the pageReview Open
17
Geo Peptidesgeopeptides.com
5.1
RETA GLP-3 10mg$99.99$10.00/mgNot on the pageReview Open
18
Extreme Peptidesextremepeptides.com
4.6
Reta (GLP-1/GIP/GCG) 10mg$199.99$20.00/mgNot on the pageReview Open
19
American Research Pensamericanresearchpens.com
4.4
GLP3-R 30 mgno 10 mg listing; nearest is 30 mg (pen)$209.99$7.00/mgNot on the pageReview Open
20
Atomik Labzatomiklabz.com
4.2
Peptide 3 (R) – 10mg$109$10.90/mgOn the pageReview Open
21
Enhanced Peptidesenhancedpeptides.com
4.2
Retatrutide - 10mg$160$16.00/mgNot on the pageReview Open
22
Peptide Crafterspeptidecrafters.com
3.6
GLP-3 (R) 10mg$70$7.00/mgNot on the pageReview Open
23
Polaris Peptidespolarispeptides.com
2.7
Retatrutide 10mg$89$8.90/mgNot on the pageReview Open
24
Eternal Peptideseternalpeptides.com
2.5
EP-3 (R)$77.99$7.80/mgNot on the pageReview Open
25
Skye Peptidesskyepeptides.com
2.4
GLP-1 R (3RA) - 12 mg Lyophilized Powderno 10 mg listing; nearest is 12 mg$99$8.25/mgNot on the pageReview Open

The order is the editors' score, not the price, because the cheapest untested vial is not a bargain. The listing shown is each shop's 10 mg single-vial price, the size most shops carry; where a shop does not stock that size we show its nearest listing and say so. Prices were read during our October 2026 check, before coupons and shipping. Every listing is sold for laboratory research use only.

What it costs, and the pages next door

This page ranks the shops; the others compare the money.

Questions

Who is the best triple-agonist class supplier?

Licensed Peptides, on our formula: 8.2 out of 10, the highest score among the 25 shops that list it. Licensed Peptides names two accredited laboratories and keeps three separate document libraries, which puts it near the top of our index for paperwork. The score is the same one we give the shop everywhere on this site; nothing is reweighted for the peptide.

Who sells triple-agonist class cheapest at 10 mg?

Alpha Peptides, at $44.09 for 10 mg against a typical $104.50. It scores 6.7, so the saving comes from a shop we rate well. The price page lists every size and every shop.

Which triple-agonist class suppliers show a certificate on the product page?

7 of the 25: Paramount Peptides, Koi Peptides, Alpha Peptides, Alpha Labs Peptides, Peptide Perfection, Prime Peptides and Atomik Labz. A certificate on the page is the least a shop can do; a lot number on it that matches the vial is the thing to check, and our lab-report guide shows how in five minutes.