Which peptide stores are third-party tested?
Stores that publish a lab COA matched to the lot
160 of the 230 open stores we track publish a certificate of analysis from an outside lab that carries a lot or batch number you can match to the vial. 142 of them name the lab, 94 show mass spectrometry on the certificate, and 32 have independent test results on Finnrick.
Computed from our store audit. Store data as of Nov 12, 2026.
160
Outside tested, lot matched
142
Name the lab
94
Show mass spec
32
Have Finnrick results
How a store gets on this list
Two things have to be visible to a visitor. The certificate comes from a lab that is not the seller, and it carries a lot or batch number that can be matched to a vial. A claim on a product page does not count; a document does. This is the result of an audit, not a list of recommendations. Stores are ordered by how many of the five testing checks they show, then A to Z. A Partner tag marks a store that pays this site a commission on orders. The order never reads whether a store pays us.
Does your store publish lot COAs we missed? Send us the link and we will re-read it.
How to read a peptide COA →How to vet a vendor →All stores →
5 of 5 checks shown
93 stores| Store | Outside lab | Testing | Method on the COA | Finnrick |
|---|---|---|---|---|
| 99 Purity PeptidesPartner | Optiq Health Labs | 5 of 5 | HPLC · Mass spec | None |
| Alpha Omega | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| American PeptidesPartner | Bioviridian | 5 of 5 | HPLC · Mass spec | None |
| AminexaPartner | Optiq Health Labs | 5 of 5 | HPLC · Mass spec | None |
| Amino USA | Bioregen and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Apex Peptide Supply | Bioviridian and Janoshik Analytical | 5 of 5 | HPLC · Mass spec | None |
| Arcane Peptides | Vanguard Laboratory and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Arctic Lab SupplyPartner | ILS Laboratories, Freedom Diagnostics and Janoshik Analytical | 5 of 5 | HPLC · Mass spec | None |
| Ascend SciencePartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Atomix Research | ZyntroTest | 5 of 5 | HPLC · Mass spec | None |
| Averix LabsPartner | Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| Axon ChemsPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | Finnrick page ↗ |
| BioEdge Research Labs | MDx BioAnalytical Laboratory | 5 of 5 | HPLC · Mass spec | None |
| BioInfinity LabPartner | Verum Analytics | 5 of 5 | HPLC · Mass spec | None |
| Biolinx LabsPartner | Accumark Labs | 5 of 5 | HPLC · Mass spec | None |
| Biologix LabsPartner | Janoshik, Precision Diagnostics and ILS Labs | 5 of 5 | HPLC · Mass spec | None |
| BioLongevity LabsPartner | SafeCert Labs, AV Analytics and BioRegen | 5 of 5 | HPLC · Mass spec | 33 tests ↗ |
| Biotech Peptides | MZ Biolabs | 5 of 5 | HPLC · Mass spec | None |
| Blue Sky Peptide | MZ BioLabs | 5 of 5 | HPLC · Mass spec | None |
| Bluum Peptides | Freedom Diagnostics and Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| Bulk Peptides | Freedom Diagnostics and Vanguard Laboratory | 5 of 5 | HPLC · Mass spec | None |
| Cosmic Peptides | Clark-Turner Scientific | 5 of 5 | HPLC · Mass spec | None |
| Crownwell ResearchPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Direct Peptides | Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| Disguised AlphaPartner | ILS Laboratories, Chromate and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Elite Miami Peptides | MZ Biolabs | 5 of 5 | HPLC · Mass spec | None |
| Elite Research LabsPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Endura Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Eon PeptidesPartner | Freedom Diagnostics, Accurate Test Labs and pH Solutions | 5 of 5 | HPLC · Mass spec | None |
| Eros Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | 3 tests ↗ |
| ezPeps | Freedom Diagnostics, Horizon Analytical, ILS Laboratories, Kovera Labs and TrustPointe | 5 of 5 | HPLC · Mass spec | None |
| Felix Chemical Supply | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Full Scale Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| GenX Bio | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Glacier Aminos | Kovera Labs, Freedom Diagnostics, Ethos Analytics and ILS Laboratories | 5 of 5 | HPLC · Mass spec | None |
| Glow PeptidesPartner | Freedom Diagnostics and Bioviridian | 5 of 5 | HPLC · Mass spec | None |
| Go Alpha Labs Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | 8 tests ↗ |
| HLX LabsPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Improved Peptides | Freedom Diagnostics and Krause Analytical | 5 of 5 | HPLC · Mass spec | None |
| Instant Peptides | Ethos Analytics and Kovera Labs | 5 of 5 | HPLC · Mass spec | None |
| Ion Peptide | ILS Laboratories and Kovera Labs | 5 of 5 | HPLC · Mass spec | 4 tests ↗ |
| Iron Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Kylo Peptides | Janoshik Analytical, Freedom Diagnostics, Vanguard Laboratory and Optiq Health Labs | 5 of 5 | HPLC · Mass spec | None |
| LA Peptides | Bioviridian and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Landro LabsPartner | Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| LiveWell PeptidesPartner | MZ Biolabs and Janoshik Analytical | 5 of 5 | HPLC · Mass spec | None |
| Loti Labs | Bioviridian | 5 of 5 | HPLC · Mass spec | 32 tests ↗ |
| Lumera Labs | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| LuvaminosPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Midwest PeptidePartner | Precision Mass Spec | 5 of 5 | HPLC · Mass spec | None |
| Modern ResearchPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Moglabs | Vanguard Laboratory and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Nation Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Nationwide PeptidesPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Nura PeptidePartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Oasis Labs | BioChex | 5 of 5 | HPLC · Mass spec | None |
| One AminosPartner | United Laboratories, Kovera Labs and ILS Laboratories | 5 of 5 | HPLC · Mass spec | None |
| PeakForce Labs | Bioviridian | 5 of 5 | HPLC · Mass spec | None |
| PeakForm Peptides | Freedom Diagnostics and Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| Peptide ExpressPartner | Freedom Diagnostics and Mistral Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Peptide Warehouse | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Peptides 4 Research | MDx BioAnalytical Laboratory | 5 of 5 | HPLC · Mass spec | 20 tests ↗ |
| PeptidesSource | Bioviridian | 5 of 5 | HPLC · Mass spec | None |
| Peptira | Freedom Diagnostics and Janoshik Analytical | 5 of 5 | HPLC · Mass spec | 4 tests ↗ |
| Planet Peptide | Chromate and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | 62 tests ↗ |
| Platinum Lion | MDx BioAnalytical Laboratory | 5 of 5 | HPLC · Mass spec | None |
| Prime Lab Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Prime Pep SolutionsPartner | Kovera Labs | 5 of 5 | HPLC · Mass spec | None |
| PSPeptidesPartner | Vanguard Laboratory and North American Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Pure Health Peptides | Ethos Analytics and MZ Biolabs | 5 of 5 | HPLC · Mass spec | None |
| Real PeptidesPartner | Freedom Diagnostics and Kovera (named on its capsule product pages) | 5 of 5 | HPLC · Mass spec | None |
| Rebirth LabsPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Reta One LabsPartner | Kovera Labs | 5 of 5 | HPLC · Mass spec | None |
| Rivn PeptidesPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Ryder Research Supply | MZ Biolabs, and a lab it calls Analytical Chemistry Teaching Lab | 5 of 5 | HPLC · Mass spec | None |
| Spartan BioLabs | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Stemcode Peptides | Qalitex, Freedom Diagnostics, Janoshik Analytical and Nutri Analytical | 5 of 5 | HPLC · Mass spec | None |
| Swiss ChemsFDA letter | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | 10 tests ↗ |
| Synthro Lab | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Thrive PeptidesPartner | Freedom Diagnostics and Kovera Labs | 5 of 5 | HPLC · Mass spec | None |
| True PeptidePartner | Freedom Diagnostics and Optiq Health Labs | 5 of 5 | HPLC · Mass spec | None |
| True Research Labs | Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| TrueLab Peptides | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Trustedpeps | ILS Laboratories and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Umbrella Labs | Vanguard Laboratory and MZ BioLabs | 5 of 5 | HPLC · Mass spec | None |
| Value Research Labs | Horizon Analytical | 5 of 5 | HPLC · Mass spec | None |
| Veratis BioPartner | Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Vici Peptides | SteriGenix Analytical, BT Labs and BioRegen | 5 of 5 | HPLC · Mass spec | None |
| Void ResearchPartner | ILS Laboratories and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Volta PeptidesPartner | SideChain Analytics | 5 of 5 | HPLC · Mass spec | None |
| Vortex ResearchPartner | ILS Laboratories and Freedom Diagnostics | 5 of 5 | HPLC · Mass spec | None |
| Welli Labs | ILS Laboratories, Freedom Diagnostics and Chromate | 5 of 5 | HPLC · Mass spec | None |
| Xeno Peptides | Freedom Diagnostics, BT Labs and Chromate Labs | 5 of 5 | HPLC · Mass spec | None |
4 of 5 checks shown
37 stores| Store | Outside lab | Testing | Method on the COA | Finnrick |
|---|---|---|---|---|
| Aavant Research | Janoshik Analytical | 4 of 5 | HPLC | 21 tests ↗ |
| Aigil ResearchPartner | ILS Laboratories | 4 of 5 | HPLC | None |
| Alpine PeptidePartner | ILS Laboratories and BT Labs | 4 of 5 | HPLC | None |
| Amino ClubPartner | ILS Laboratories, San Diego | 4 of 5 | HPLC | None |
| Capstone PeptidesPartner | Accumark Labs | 4 of 5 | HPLC | Finnrick page ↗ |
| Certified Peptides | Vanguard Laboratory | 4 of 5 | HPLC | 5 tests ↗ |
| Core Peptides | Vanguard Laboratory | 4 of 5 | HPLC | 3 tests ↗ |
| Crush Research | ILS Laboratories | 4 of 5 | HPLC | None |
| Elevate Research LabsPartner | ILS Laboratories | 4 of 5 | HPLC | None |
| Evolve PeptidesPartner | Chromate, Janoshik and MZ Biolabs (named on its home page) | 4 of 5 | HPLC | None |
| Fusion PeptidesPartner | Vanguard Laboratory | 4 of 5 | HPLC | None |
| Helion ResearchPartner | ILS Laboratories | 4 of 5 | HPLC | None |
| Liberty Peptides | Ethos Analytics | 4 of 5 | HPLC | 19 tests ↗ |
| Licensed PeptidesPartner | Vanguard Laboratory | 4 of 5 | HPLC | 4 tests ↗ |
| Modern Aminos | Kovera Labs, Vanguard Laboratory, Chromate, TrustPointe Analytics and Freedom Diagnostics | 4 of 5 | HPLC | 6 tests ↗ |
| Modified Aminos | Ethos Analytics | 4 of 5 | HPLC | None |
| Nextgen PeptidesPartner | ILS Labs (named on its COA panel: HPLC purity, identity, fentanyl screen, ICP-MS heavy metals, sterility, endotoxin) | 4 of 5 | HPLC | None |
| Northline Labs | ILS Laboratories | 4 of 5 | HPLC | None |
| OROS Research | Ethos Analytics, with an ISO 17025 mark | 4 of 5 | HPLC | None |
| Panda Peptides | Janoshik | 4 of 5 | HPLC | None |
| Peak Lab PeptidesPartner | Bioviridian | 4 of 5 | HPLC | None |
| Peptide Crafters | Vanguard Laboratory, Janoshik and Accumark Labs | 4 of 5 | HPLC | 48 tests ↗ |
| Peptide GiantsPartner | Vanguard Laboratory | 4 of 5 | HPLC | None |
| Peptide PartnersFDA letter | Chromate, Ethos and TrustPointe | 4 of 5 | HPLC | 98 tests ↗ |
| Peptidology | Vanguard Laboratory, Eagle Analytical Services and Ethos Analytics | 4 of 5 | HPLC | 16 tests ↗ |
| Pepvida LabsPartner | Vanguard Laboratory | 4 of 5 | HPLC | None |
| Prime PeptidesFDA letter | Janoshik Analytical | 4 of 5 | HPLC | 19 tests ↗ |
| Protide Health | Lab not named | 4 of 5 | HPLC · Mass spec | None |
| Puratek PeptidesPartner | ILS Laboratories | 4 of 5 | HPLC | None |
| Pure Bio LabsPartner | Ethos Analytics | 4 of 5 | HPLC | None |
| Pure Lab Peptides | Chromate | 4 of 5 | HPLC | None |
| Ruo Bio | Vanguard Laboratory, Chromate and Janoshik Analytical | 4 of 5 | HPLC | None |
| Solas SciencePartner | ILS Laboratories | 4 of 5 | HPLC | None |
| Validated PeptidesPartner | ILS Laboratories | 4 of 5 | HPLC | None |
| Verified Peptides | Janoshik | 4 of 5 | HPLC | 36 tests ↗ |
| Vertex LabsPartner | BTLabs | 4 of 5 | HPLC | None |
| Voltera Sciences | ILS Laboratories | 4 of 5 | HPLC | None |
3 of 5 checks shown
18 stores| Store | Outside lab | Testing | Method on the COA | Finnrick |
|---|---|---|---|---|
| Alpha PeptidesPartner | Analytical Formulations, Inc. | 3 of 5 | Method not shown | None |
| Ameano PeptidesPartner | Janoshik Analytical | 3 of 5 | Method not shown | None |
| AminoVaultPartner | Lab not named | 3 of 5 | HPLC | None |
| Delix LabsPartner | Janoshik Analytical | 3 of 5 | Method not shown | None |
| Nexaph | Janoshik | 3 of 5 | Method not shown | 275 tests ↗ |
| NuScience PeptidesFDA letter | Lab not named | 3 of 5 | HPLC | 49 tests ↗ |
| Oath Research | Freedom Diagnostics | 3 of 5 | Method not shown | None |
| Orbitrex Peptides | Trustpointe Analytics | 3 of 5 | Method not shown | 39 tests ↗ |
| Orion Peptides | Lab not named | 3 of 5 | HPLC | None |
| Penguin Peptides | Janoshik Analytical | 3 of 5 | Method not shown | 5 tests ↗ |
| Polaris Peptides | Janoshik | 3 of 5 | Method not shown | 99 tests ↗ |
| Prism LabsPartner | Proof Point Analytical | 3 of 5 | Method not shown | None |
| Proxiva Labs | Analytical Formulations Inc. | 3 of 5 | Method not shown | None |
| PRPEPSPartner | Lab not named | 3 of 5 | HPLC | None |
| Skye Peptides | Janoshik Analytical | 3 of 5 | Method not shown | 82 tests ↗ |
| Tydes | TrustPointe Analytics and Janoshik | 3 of 5 | Method not shown | 41 tests ↗ |
| Unyx PeptidesPartner | Lab not named | 3 of 5 | HPLC | None |
| Vyal LabsPartner | Accurate Test Labs | 3 of 5 | Method not shown | None |
2 of 5 checks shown
12 stores| Store | Outside lab | Testing | Method on the COA | Finnrick |
|---|---|---|---|---|
| AMC Essentials | Lab not named | 2 of 5 | Method not shown | None |
| Amino Amigos | Lab not named | 2 of 5 | Method not shown | 37 tests ↗ |
| Ascension PeptidesPartner | Lab not named | 2 of 5 | Method not shown | None |
| Dynamite PeptidesPartner | Lab not named | 2 of 5 | Method not shown | None |
| EZ Peptides | Lab not named | 2 of 5 | Method not shown | 8 tests ↗ |
| Fit Formulas | Lab not named | 2 of 5 | Method not shown | None |
| Lone Star Peptide Co | Lab not named | 2 of 5 | Method not shown | None |
| Paramount Peptides | Lab not named | 2 of 5 | Method not shown | 65 tests ↗ |
| Peptixa LabsPartner | Lab not named | 2 of 5 | Method not shown | None |
| Pure Tested Peptides | Lab not named | 2 of 5 | Method not shown | 7 tests ↗ |
| Simple Peptide | Lab not named | 2 of 5 | Method not shown | 40 tests ↗ |
| Wellness Research Supply | Lab not named | 2 of 5 | Method not shown | None |
Common questions
What does third-party tested mean for peptides?
It means a laboratory that is not the seller tested a sample and issued the result. On this page a store counts only when that result is published as a certificate of analysis, or COA, the lab's written report on one batch, and the certificate carries a lot or batch number a buyer can match to a vial. A store that says its products are tested and publishes no document is not counted. Today 160 of the 230 open stores we track meet that standard.
How do I match a COA to my vial?
Find the lot or batch number printed on the vial label or the box, then find the certificate that carries the same number. The compound name and the vial size on the certificate should match the label too. Some labs print a verification key on the report, and entering it on the lab's own website shows whether the report is one the lab issued. If the vial has no lot number, or the store publishes a single certificate with no lot on it, there is nothing to match.
Does a COA prove what is in my vial?
No. A COA reports what the lab found in the sample it was sent. It cannot show that the vial in your hand came from the same lot or was stored the same way. One lab named on this page prints that limit on its own reports: it states that it did not observe the sample being selected and cannot confirm the sample represents the lot. A lot-matched certificate from an outside lab is still the strongest evidence a store can publish. Blind testing, where a tester buys vials as a customer and sends them to a lab, is the independent check on it.
Which labs test peptides?
The names that appear most often on this page are Freedom Diagnostics, ILS Laboratories, Janoshik Analytical and Vanguard Laboratory. A lab's name on a certificate is a starting point, not a grade. Formats differ: some reports print the test method beside each result and others print none. In our audit, some names printed as the laboratory turned out to be the seller's own.