Identity testing confirms that the material in the vial matches the molecular mass of the compound named on the label. Mass spectrometry (MS) is the direct way to do that. Some cheaper packages identify by HPLC retention time instead, which is a weaker check.
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.
Every lab page in this directory states, in its own field, whether the base price includes MS identity. If it does not, identity rests on retention time or co-injection, and the listing says so plainly. This single distinction is the most commonly blurred point in peptide testing marketing.
Labs that bundle MS identity into the base package start around $150 to $220. Where MS is an add-on, expect about plus $205 to $250 on top of an HPLC package.
If identity matters for your records, do not buy a package whose method you have not read. A purity percentage for the wrong compound is worth nothing.
| Lab | Location | Published price |
|---|---|---|
| ACS Peptide Testing Labs | Sun City Center, FL | Quote only |
| 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) | Quote only |
| Freedom Diagnostics Testing | Franklin, TN | $200 |
| Vanguard Laboratory | Olympia, WA | $250 |
| ILS Laboratories | San Diego, CA | $200 |
| MZ Biolabs | Tucson, AZ | Quote only |
| SR Biolabs | Orlando, FL | $150 |
| 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 |
| 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 | £395 |
| 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.