Purity testing uses high performance liquid chromatography (HPLC) to separate the material in a sample and report how much of the signal belongs to the main peak. It is the base test almost every lab in this directory sells.
What testing does and does not do. Laboratory testing on this page is analytical quality control for research materials. A test measures what is in the sample that was sent: its identity, purity, quantity, or a specific contaminant. A certificate of analysis covers only that sample, on that date. It does not establish that a material is safe or effective, it does not approve any product for human or veterinary use, and no product or material referenced here has been evaluated by the Food and Drug Administration. All materials are for in-vitro laboratory research purposes only. Not for human consumption.
Disclosure: Peptide Stores Online lists these laboratories for information and comparison. Most listings are plain links and earn nothing. Where a laboratory link is an affiliate link, it is marked as a partner link next to the link itself, and Peptide Stores Online may earn a commission on orders placed through it, at no extra cost to you. Affiliate status never affects whether a lab is listed or how listings are ordered.
Ask whether the chromatogram and raw data are included in the report. A percentage without a chromatogram cannot be checked. Purity by HPLC area percentage is not the same as net peptide content, and it says nothing on its own about whether the material is the compound named on the label. That is what identity testing is for.
Base identity plus purity packages across this directory run about $150 to $250 for common compounds, with higher tiers for specialty compounds and blends.
A purity result covers only the sample that was tested, on that date. It does not certify every vial in a batch, and it does not speak to safety or suitability for any use.
| Lab | Location | Published price |
|---|---|---|
| ACS Peptide Testing Labs | Sun City Center, FL | $150 |
| Prodigy Labs | San Diego, CA | $225 |
| Peptide Test | Tests performed in Michigan by a partner lab; company building a Chattanooga, TN lab | $200 |
| TrustPointe Analytics | Michigan area, US | $200 |
| Chromate | Hudson, NH per Finnrick lab page (secondary sources conflict; the lab publishes no address on the pages read) | $180 |
| Freedom Diagnostics Testing | Franklin, TN | $200 |
| Vanguard Laboratory | Olympia, WA | $250 |
| ILS Laboratories | San Diego, CA | $200 |
| MZ Biolabs | Tucson, AZ | Quote only |
| Accumark Labs | Anaheim, CA | $250 |
| Erie Coast Analytical | Elyria, OH | $220 |
| Gold Standard Analytics | Houston, TX | $189 |
| Bioviridian | College Station, TX | $150 |
| MyPeptideTest | US (lab location not published on the pages read) | $230 |
| Precision Mass Spec | US (state not stated on the pages read) | $149 |
| Kovera Labs | Buffalo Grove, IL | Quote only |
| Ethos Analytics | Phoenix, AZ | Quote only |
| Finnrick Analytics | Austin / Texas intake, US | $89 |
| Janoshik Analytical | Czech Republic | $215 |
| Peptide Test Canada | Mississauga, ON | CA$249 |
| VialTests | Greater Toronto Area, ON | CA$249 |
| Peptify Analytics | Canada | CA$249 |
| SideChain Analytics | Mississauga, ON | CA$249 |
| Canada Peptide Testing | Canada | CA$250 |
| PeptideVerify | London, UK | £300 |
| Analiza Białek | Wrocław, Poland | Quote only |
| LabDoc | Australia | A$549 |
| PepScan Australia | Sydney, Australia | Quote only |
| Elutra Labs | Sydney and Melbourne, Australia | A$180 |
Prices are the labs\u2019 published figures at the time of research and change often. Confirm on the lab page before ordering.
All products listed on Peptide Stores Online are for in-vitro laboratory and educational research purposes only. Not for human or animal consumption. Not evaluated by the Food and Drug Administration. Not intended to diagnose, treat, cure, or prevent any disease or condition. All sellers and buyers agree to full research-use-only terms at account creation. Peptide Stores Online assumes no liability for misuse of any product listed on this platform.