Research-peptide vendors compared
Every vendor pepmg tracks by scraping their own live store — how many listings we see, their cheapest $/mg, a transparent Vendor Score, and whether they publish a Certificate of Analysis. Each profile links through to full prices and price history. We order this hub by coverage; individual products always rank by $/mg, and no vendor can pay for placement.
refreshed 38m ago · 87 of 101 publish a COA · 49 with a certificate openable at the lab · click any column to sort
| Vendor | Listings | Compounds | Score | Cheapest $/mg | Online since | COA | Affiliate |
|---|---|---|---|---|---|---|---|
| Atomik Labz 138 listings · 52 compounds · since 2024 | 138 | 52 | 5 COA documents published, none openable at the testing lab (0 of 99) | $0.07 | 2024 | 99 published | — |
| Licensed Peptides 126 listings · 29 compounds · since May 2025 | 126 | 29 | 47 a few COAs openable at the testing lab (10 of 68) | $0.10 | May 2025 | 10 checkable at the lab | Affiliate |
| PureHealth Peptides 123 listings · 59 compounds · since Nov 2024 | 123 | 59 | 80 third-party COAs, self-hosted | $0.08 | Nov 2024 | vendor-hosted | — |
| Nationwide Peptides 113 listings · 45 compounds · since Oct 2025 | 113 | 45 | 94 most COAs openable at the testing lab (65 of 73) | $0.05 | Oct 2025 | 65 checkable at the lab | Affiliate |
| Blank Peptides 85 listings · 24 compounds · since Mar 2026 | 85 | 24 | 81 a few COAs openable at the testing lab (1 of 21) | $0.08 | Mar 2026 | 1 checkable at the lab | — |
| Modern Research Peptides 77 listings · 43 compounds · since Sep 2025 | 77 | 43 | 84 most COAs openable at the testing lab (159 of 202) | $0.03 | Sep 2025 | 159 checkable at the lab | — |
| Tydes 76 listings · 38 compounds · since 2023 | 76 | 38 | 100 lab-hosted COAs | $0.14 | 2023 | listed | — |
| Peptide Partners 73 listings · 20 compounds · since Mar 2025 | 73 | 20 | 83 most COAs openable at the testing lab (133 of 250) | $0.11 | Mar 2025 | 133 checkable at the lab | — |
| Swiss Chems 66 listings · 47 compounds · since 2020 | 66 | 47 | 80 third-party COAs, self-hosted | $0.05 | 2020 | 2 published | — |
| Solution Peptides 65 listings · 50 compounds · since 2023 | 65 | 50 | 5 COA documents published, none openable at the testing lab (0 of 164) | $0.07 | 2023 | 164 published | — |
| Core Peptides 61 listings · 53 compounds · since 2019 | 61 | 53 | 35 COA documents, no lab named | $1.16 | 2019 | 100 published | — |
| PureRawz 59 listings · 34 compounds · since 2019 | 59 | 34 | 5 COA documents published, none openable at the testing lab (0 of 110) | $0.11 | 2019 | 110 published | — |
| RUO.bio 55 listings · 45 compounds · since Jan 2025 | 55 | 45 | 61 some COAs openable at the testing lab (74 of 160) | $0.03 | Jan 2025 | 74 checkable at the lab | — |
| NuScience Peptides 53 listings · 46 compounds · since 2023 | 53 | 46 | 52 some COAs openable at the testing lab (15 of 93) | $0.10 | 2023 | 15 checkable at the lab | — |
| Biotech Peptides 53 listings · 44 compounds · since 2020 | 53 | 44 | 43 COA documents, no lab named | $0.36 | 2020 | 144 published | — |
| Glacier Aminos 51 listings · 32 compounds · since Aug 2025 | 51 | 32 | 52 some COAs openable at the testing lab (3 of 10) | $0.05 | Aug 2025 | 3 checkable at the lab | — |
| Happy Peptides 51 listings · 39 compounds · since 2023 | 51 | 39 | 43 COA documents, no lab named | $0.08 | 2023 | — | — |
| Elite Miami Peptides 50 listings · 36 compounds · since 2024 | 50 | 36 | 43 COA documents, no lab named | $0.06 | 2024 | 68 published | — |
| My Amino Lab 50 listings · 21 compounds · since Mar 2026 | 50 | 21 | 94 most COAs openable at the testing lab (43 of 61) | $0.05 | Mar 2026 | 43 checkable at the lab | — |
| Tegridy-Research 49 listings · 36 compounds · since Aug 2025 | 49 | 36 | 90 COAs openable at the testing lab (76 of 83) | $0.03 | Aug 2025 | 76 checkable at the lab | Affiliate |
| Welli Labs 49 listings · 34 compounds · since Jul 2025 | 49 | 34 | 35 most COAs openable at the testing lab (1 of 2) | $0.03 | Jul 2025 | 1 checkable at the lab | — |
| Modern Aminos 49 listings · 40 compounds · since 2022 | 49 | 40 | 46 some COAs openable at the testing lab (19 of 98) | $0.09 | 2022 | 19 checkable at the lab | — |
| Penguin Peptides 47 listings · 28 compounds · since Apr 2025 | 47 | 28 | 72 most COAs openable at the testing lab (47 of 80) | $0.05 | Apr 2025 | 47 checkable at the lab | — |
| Paramount Peptides 47 listings · 34 compounds · since 2023 | 47 | 34 | 97 COAs openable at the testing lab (85 of 89) | $0.17 | 2023 | 85 checkable at the lab | — |
| Peptidology 47 listings · 41 compounds · since Jan 2025 | 47 | 41 | 24 COA page behind an account | $0.04 | Jan 2025 | listed | — |
| Value Research Labs 46 listings · 32 compounds · since Jun 2026 | 46 | 32 | 72 third-party COAs, self-hosted | $0.04 | Jun 2026 | listed | — |
| Optima Supply 45 listings · 26 compounds · since Apr 2025 | 45 | 26 | 79 some COAs openable at the testing lab (35 of 217) | $0.06 | Apr 2025 | 35 checkable at the lab | — |
| Bio Longevity Labs 42 listings · 41 compounds · since 2024 | 42 | 41 | 43 COA documents, no lab named | $0.50 | 2024 | 250 published | Affiliate |
| Alpha Omega Peptide 41 listings · 29 compounds · since 2024 | 41 | 29 | 13 no lab testing published that we could find | $0.05 | 2024 | — | — |
| Simple Peptide 41 listings · 29 compounds · since 2023 | 41 | 29 | 43 COA documents, no lab named | $0.05 | 2023 | listed | — |
| Verified Peptides 39 listings · 33 compounds · since 2019 | 39 | 33 | 14 a few COAs openable at the testing lab (1 of 104) | $0.05 | 2019 | 1 checkable at the lab | — |
| Driven Ones 39 listings · 22 compounds · since 2021 | 39 | 22 | 99 COAs openable at the testing lab (13 of 14) | $0.05 | 2021 | 13 checkable at the lab | — |
| True Peptide Labs 38 listings · 30 compounds · since Jun 2025 | 38 | 30 | 92 COAs openable at the testing lab (24 of 24) | $0.05 | Jun 2025 | 24 checkable at the lab | — |
| Nurev Peptides 38 listings · 28 compounds · since Dec 2025 | 38 | 28 | 39 COA documents, no lab named | $0.04 | Dec 2025 | 54 published | — |
| AMC-Essentials 37 listings · 34 compounds · since 2024 | 37 | 34 | 43 COA documents, no lab named | $0.05 | 2024 | 93 published | — |
| EZ Peptides 37 listings · 34 compounds · since 2023 | 37 | 34 | 94 most COAs openable at the testing lab (158 of 230) | $0.14 | 2023 | 158 checkable at the lab | — |
| Regentide 37 listings · 26 compounds · since Sep 2025 | 37 | 26 | 5 COA documents published, none openable at the testing lab (0 of 1) | $0.05 | Sep 2025 | 1 published | — |
| Ion Peptide 37 listings · 22 compounds · since Aug 2025 | 37 | 22 | 40 a few COAs openable at the testing lab (4 of 47) | $0.04 | Aug 2025 | 4 checkable at the lab | — |
| My Oasis Labs 37 listings · 32 compounds · since Nov 2024 | 37 | 32 | 81 most COAs openable at the testing lab (72 of 109) | $0.10 | Nov 2024 | 72 checkable at the lab | Affiliate |
| Ameano Peptides 36 listings · 32 compounds · since Jan 2025 | 36 | 32 | 99 COAs openable at the testing lab (111 of 118) | $0.14 | Jan 2025 | 111 checkable at the lab | — |
| Pure Tested Peptides 36 listings · 23 compounds · since Aug 2025 | 36 | 23 | 43 COA documents, no lab named | $0.20 | Aug 2025 | 58 published | — |
| MOG Labs 35 listings · 33 compounds · since Oct 2025 | 35 | 33 | 68 most COAs openable at the testing lab (61 of 92) | $0.04 | Oct 2025 | 61 checkable at the lab | — |
| Red Rock Peptides 34 listings · 19 compounds · since Nov 2025 | 34 | 19 | 43 COA documents, no lab named | $0.05 | Nov 2025 | 10 published | — |
| Nextech Laboratories 34 listings · 25 compounds · since 2024 | 34 | 25 | 47 a few COAs openable at the testing lab (2 of 30) | $0.12 | 2024 | 2 checkable at the lab | — |
| Southern Aminos 34 listings · 28 compounds · since Aug 2025 | 34 | 28 | 42 a few COAs openable at the testing lab (1 of 8) | $0.04 | Aug 2025 | 1 checkable at the lab | — |
| Eternal Peptides 33 listings · 21 compounds · since May 2025 | 33 | 21 | 85 most COAs openable at the testing lab (141 of 225) | $0.04 | May 2025 | 141 checkable at the lab | — |
| Feel Good Peptides 33 listings · 25 compounds · since Dec 2025 | 33 | 25 | 82 most COAs openable at the testing lab (57 of 76) | $0.10 | Dec 2025 | 57 checkable at the lab | — |
| GenPeptide 32 listings · 24 compounds · since Sep 2025 | 32 | 24 | 83 a few COAs openable at the testing lab (6 of 44) | $0.11 | Sep 2025 | 6 checkable at the lab | Affiliate |
| Nexaph 32 listings · 29 compounds · since 2024 | 32 | 29 | 82 most COAs openable at the testing lab (100 of 122) | — | 2024 | 100 checkable at the lab | — |
| Trutide Solutions 32 listings · 19 compounds · since Sep 2025 | 32 | 19 | 35 COA documents, no lab named | $0.03 | Sep 2025 | 13 published | — |
| Valor Peptides 31 listings · 20 compounds · since May 2025 | 31 | 20 | 39 COA documents, no lab named | $0.10 | May 2025 | 10 published | — |
| Rejuven8 Peptides 30 listings · 23 compounds · since Oct 2025 | 30 | 23 | 98 COAs openable at the testing lab (45 of 47) | $0.07 | Oct 2025 | 45 checkable at the lab | — |
| Atomix Research 30 listings · 26 compounds · since 2024 | 30 | 26 | 43 COA documents, no lab named | $0.04 | 2024 | 90 published | — |
| Cosmic Peptides 30 listings · 24 compounds · since Jul 2025 | 30 | 24 | 43 COA documents, no lab named | $0.08 | Jul 2025 | 1 published | — |
| LiveWell Peptides 30 listings · 19 compounds · since Feb 2025 | 30 | 19 | 80 third-party COAs, self-hosted | $0.05 | Feb 2025 | 13 published | — |
| S1 Research 29 listings · 19 compounds · since May 2025 | 29 | 19 | 62 some COAs openable at the testing lab (42 of 102) | $0.03 | May 2025 | 42 checkable at the lab | — |
| Puratek Peptides 29 listings · 24 compounds · since Dec 2025 | 29 | 24 | 72 third-party COAs, self-hosted | $0.03 | Dec 2025 | 1 published | — |
| Oros Research 29 listings · 25 compounds · since Feb 2025 | 29 | 25 | 14 a few COAs openable at the testing lab (2 of 250) | $0.15 | Feb 2025 | 2 checkable at the lab | — |
| Bulk Peptides 29 listings · 24 compounds · since 2010 | 29 | 24 | 87 COAs openable at the testing lab (11 of 11) | — | 2010 | 11 checkable at the lab | — |
| Hydro Research 28 listings · 24 compounds · since 2023 | 28 | 24 | 100 a few COAs openable at the testing lab (32 of 250) | $0.06 | 2023 | 32 checkable at the lab | — |
| Pinnacle Peptide Labs 28 listings · 27 compounds · since Jun 2025 | 28 | 27 | 74 most COAs openable at the testing lab (6 of 11) | $0.10 | Jun 2025 | 6 checkable at the lab | — |
| Ascension Peptides 28 listings · 27 compounds · since 2023 | 28 | 27 | 56 some COAs openable at the testing lab (36 of 100) | $0.10 | 2023 | 36 checkable at the lab | — |
| True Research Labs 28 listings · 26 compounds · since Jan 2026 | 28 | 26 | 5 no lab testing published that we could find | $0.08 | Jan 2026 | — | — |
| Orbitrex Peptide 27 listings · 24 compounds · since Sep 2025 | 27 | 24 | 85 most COAs openable at the testing lab (32 of 51) | $0.04 | Sep 2025 | 32 checkable at the lab | — |
| OneDay Compounds 25 listings · 22 compounds · since Jan 2026 | 25 | 22 | 39 COA documents, no lab named | $0.08 | Jan 2026 | listed | — |
| Evergreen Peptides 25 listings · 20 compounds · since Mar 2026 | 25 | 20 | 35 COA documents, no lab named | $0.05 | Mar 2026 | — | — |
| Supply Kore 25 listings · 18 compounds · since Oct 2025 | 25 | 18 | 35 COA documents, no lab named | $0.12 | Oct 2025 | 75 published | — |
| FelixChem 24 listings · 20 compounds · since Apr 2025 | 24 | 20 | 41 a few COAs openable at the testing lab (1 of 9) | $0.08 | Apr 2025 | 1 checkable at the lab | — |
| Ramp Peptides 24 listings · 18 compounds · since Jan 2026 | 24 | 18 | 43 COA documents, no lab named | $0.03 | Jan 2026 | — | — |
| Nuvia Peptides 23 listings · 16 compounds · since Dec 2025 | 23 | 16 | 39 COA documents, no lab named | $0.09 | Dec 2025 | — | — |
| Sports Technology Labs 23 listings · 23 compounds · since 2019 | 23 | 23 | 80 third-party COAs, self-hosted | $0.25 | 2019 | listed | — |
| Prime Peptides 22 listings · 16 compounds · since 2024 | 22 | 16 | 89 most COAs openable at the testing lab (37 of 43) | $0.05 | 2024 | 37 checkable at the lab | — |
| Planet Peptide 22 listings · 18 compounds · since 2023 | 22 | 18 | 5 no lab testing published that we could find | $0.15 | 2023 | — | — |
| Peptira 21 listings · 10 compounds · since May 2025 | 21 | 10 | 91 COAs openable at the testing lab (56 of 58) | $0.11 | May 2025 | 56 checkable at the lab | — |
| Empire Biolabs 21 listings · 18 compounds · since Feb 2026 | 21 | 18 | 43 COA documents, no lab named | $0.22 | Feb 2026 | 25 published | — |
| Apex Peptides 20 listings · 16 compounds · since 2024 | 20 | 16 | 9 no lab testing published that we could find | $0.40 | 2024 | — | — |
| Onyx Bio Labs 20 listings · 17 compounds · since Aug 2025 | 20 | 17 | 81 a few COAs openable at the testing lab (6 of 134) | $0.03 | Aug 2025 | 6 checkable at the lab | — |
| Arcane Peptides 20 listings · 18 compounds · since Dec 2025 | 20 | 18 | 65 most COAs openable at the testing lab (49 of 79) | $0.04 | Dec 2025 | 49 checkable at the lab | — |
| Qureshi Labs 20 listings · 16 compounds · since Jan 2026 | 20 | 16 | 35 COAs openable at the testing lab (2 of 2) | $0.04 | Jan 2026 | 2 checkable at the lab | — |
| 6A Labs 20 listings · 17 compounds · since Jan 2026 | 20 | 17 | 35 COA documents, no lab named | $0.06 | Jan 2026 | 7 published | — |
| Pepvida Labs 19 listings · 19 compounds · since Sep 2025 | 19 | 19 | 5 COA documents published, none openable at the testing lab (0 of 12) | $0.05 | Sep 2025 | 12 published | — |
| Platinum Lion Peptides 18 listings · 12 compounds · since 2023 | 18 | 12 | 83 most COAs openable at the testing lab (37 of 53) | $0.13 | 2023 | 37 checkable at the lab | — |
| Ignite Peptides 17 listings · 16 compounds · since 2024 | 17 | 16 | 95 most COAs openable at the testing lab (21 of 28) | $0.06 | 2024 | 21 checkable at the lab | — |
| Research Chem HQ 17 listings · 16 compounds · since 2024 | 17 | 16 | 84 some COAs openable at the testing lab (20 of 98) | $0.11 | 2024 | 20 checkable at the lab | — |
| Wellness Peptides 17 listings · 9 compounds · since Dec 2024 | 17 | 9 | 35 COA documents, no lab named | $0.04 | Dec 2024 | listed | — |
| Thrive Peptides 15 listings · 13 compounds · since Feb 2026 | 15 | 13 | 72 third-party COAs, self-hosted | $0.08 | Feb 2026 | 1 published | — |
| Lumi Peptides 15 listings · 14 compounds · since May 2025 | 15 | 14 | 35 COA documents, no lab named | $0.05 | May 2025 | listed | — |
| Peptide Phix 14 listings · 14 compounds · since May 2026 | 14 | 14 | 5 no lab testing published that we could find | $0.06 | May 2026 | — | — |
| Cheaper Peptides 13 listings · 8 compounds · since Feb 2026 | 13 | 8 | 43 COA documents, no lab named | $0.03 | Feb 2026 | — | — |
| Adonis Research 12 listings · 1 compounds · since Apr 2025 | 12 | 1 | 95 COAs openable at the testing lab (28 of 29) | $4.50 | Apr 2025 | 28 checkable at the lab | — |
| Voltera Sciences 11 listings · 9 compounds · since Apr 2026 | 11 | 9 | 43 COA documents, no lab named | $2.80 | Apr 2026 | 19 published | — |
| Omegamino 11 listings · 11 compounds · since Feb 2025 | 11 | 11 | 39 COA documents, no lab named | $0.13 | Feb 2025 | listed | — |
| Avade Labs 10 listings · 6 compounds · since Apr 2026 | 10 | 6 | 89 most COAs openable at the testing lab (10 of 15) | $0.06 | Apr 2026 | 10 checkable at the lab | — |
| Lumina Research Labs 10 listings · 9 compounds · since Jun 2026 | 10 | 9 | 80 third-party COAs, self-hosted | $0.07 | Jun 2026 | 1 published | — |
| Midwest Peptide 10 listings · 9 compounds · since Aug 2025 | 10 | 9 | 13 no lab testing published that we could find | $0.14 | Aug 2025 | — | Affiliate |
| Amino Sequence 9 listings · 9 compounds · since 2016 | 9 | 9 | 13 no lab testing published that we could find | $0.05 | 2016 | — | — |
| Crownwell Research 9 listings · 5 compounds · since Jan 2026 | 9 | 5 | 13 COA documents published, none openable at the testing lab (0 of 13) | $0.05 | Jan 2026 | 13 published | Affiliate |
| A1 Compounds 6 listings · 6 compounds | 6 | 6 | 35 COA documents, no lab named | $0.05 | — | — | — |
| Restore Peptides 5 listings · 5 compounds · since 2024 | 5 | 5 | 43 COA documents, no lab named | $1.28 | 2024 | 7 published | — |
| IDUN Peptides 3 listings · 3 compounds · since Jan 2026 | 3 | 3 | 13 no lab testing published that we could find | $0.03 | Jan 2026 | — | — |
| Riptide Wellness 3 listings · 3 compounds · since 2014 | 3 | 3 | 68 most COAs openable at the testing lab (19 of 37) | $2.25 | 2014 | 19 checkable at the lab | — |
Vendor Score rates ONLY what a vendor publishes: lab-testing transparency, a real About page, and machine-readable prices. Price competitiveness, catalog size and track record are shown as facts and are deliberately NOT scored — how cheap a vendor is says nothing about how openly they publish, and $/mg is already the ranking. Every component, and what would raise it, is on the vendor's profile. It is affiliate-blind: paying pepmg a commission does not change it, and being a new domain is never a penalty.
All products listed are sold by third-party vendors for laboratory and research use only (RUO). Where an FDA label or a peer-reviewed study has published a dose, pepmg reports it with the source named, because that is safer than guessing. It is a report, not medical advice and not a recommendation to use anything. pepmg sells nothing and ships nothing. Listings are price-tracking data, not endorsements.