Choose a lab to test your peptides
Start with what the test must tell you, then compare price and turnaround. As of Oct 10, 2026, we profile 18 labs and 2 services that send samples to labs, Finnrick and Peptide Test. Every fact shows its source and the date we checked it.
Filter by what you need
Compare labs side by side
Showing labs that test for endotoxin or microbes: numeric endotoxin results first, then growth-based sterility tests before DNA screens and microbial counts. Show all labs
No test removes the risk of injecting a product. Endotoxin tests look for bacterial toxins; sterility tests look for live microbes. How to read endotoxin results.
| Lab | Contamination tests | Tests | Base price | Turnaround | Outside US | Report check | Accreditation | Reports we hold | Known issues |
|---|---|---|---|---|---|---|---|---|---|
| AV AnalyticsUnited States | Endotoxin: $125, rFC, with spike recovery. Microbes: $225 rapid growth-based (BACT/ALERT 3D) | Identity (mass spec), Amount, Endotoxin, Sterility (growth-based), Metals, Solvents/TFA (quote) | $170 to $215 | Measured: median 9 business days | Not stated | On its own site | None found | 60; latest Sep 3, 2026 | Short record: site registered April 2026, first public reports August 2026 |
| ChromateUnited States | Endotoxin: Kinetic chromogenic LAL, $240. Microbes: USP <71> membrane filtration, $240 | Identity (retention time), Amount, Endotoxin, Sterility (USP <71>), Metals (quote), Solvents/TFA (quote) | $180 to $380 | Not stated | Not stated | On its own site | None claimed | 1,964; latest Aug 11, 2026 | No street address or legal entity published |
| Kovera LabsUnited States | Endotoxin: Add-on; kinetic chromogenic LAL, USP <85>. Microbes: 14-day BacT/ALERT; not stated as USP <71> | Identity (mass spec), Amount, Endotoxin, Sterility (growth-based), Metals | $200 | No standard time; sterility 14 business days | US and Canada only | On its own site | None claimed | 874; latest Aug 24, 2026 | Terms let Kovera revoke COAs and publish your name and results without consent |
| JanoshikCzech Republic | Endotoxin: Add-on; result in EU per vial. Microbes: TAMC/TYMC count, not USP <71> | Identity (retention time), Amount, Endotoxin, Microbial count (not sterility), Metals, TFA | $215 to $290 | Stated: 5 to 14 days | Any country | On its own site | None found | 20,616; latest Sep 17, 2026 | Customs documents issued in your name |
| BioRegenUnited States | Endotoxin: Kinetic chromogenic LAL, 0.05 to 5.0 EU/mL | Identity (mass spec), Amount, Endotoxin | $165 to $230 | Stated: 4 to 6 business days | Not stated | On its own site | None claimed | 323; latest Sep 10, 2026 | Samples ship to a private mailbox; no lab street address published |
| Freedom DiagnosticsUnited States | Endotoxin: Add-on ($175, extra vial); passes print Pass. Microbes: PCR DNA screen ($150), not USP <71> | Identity (mass spec), Amount, Endotoxin (pass/fail), DNA screen (not sterility) | $200 | Measured: median 2 business days | Not stated | On its own site | None found; claims ISO 9001 and GLP | 73,766; latest Oct 9, 2026 | Endotoxin printed as Pass without a threshold |
| BioviridianUnited States | Endotoxin: $150 add-on; LAL or rFC. Microbes: $200, "in accordance with USP <71>", 2 vials | Identity (mass spec), Amount, Endotoxin, Sterility (USP <71>), Metals | $150 | Measured: median 4 business days | Ask first | On its own site | None; says "ISO 17025 in Progress" | 96; latest Sep 18, 2026 | A public report printed mg for a mcg product and marked it "Conforms" |
| TrustPointe AnalyticsUnited States | Endotoxin: USP <85> LAL, $300. Microbes: USP <71>, up to 20 vials composited | Identity, Amount, Endotoxin, Sterility (USP <71>), Metals | $200 to $400 | Stated: 3 to 5 business days | Not stated | On its own site | None claimed | 450; latest Oct 1, 2026 | Identity method not stated; ask whether it uses mass spectrometry |
| Vanguard LaboratoryUnited States | Endotoxin: In Gold and Elite, or +$210. Microbes: USP <71> in Gold and Elite, or +$150 | Identity, Amount, Endotoxin, Sterility (USP <71>), Metals, Solvents/TFA | $250 | Stated: 7 to 10 business days | Not stated | On its own site | ISO 17025 (A2LA); scope lists no peptide tests | 931; latest Sep 9, 2026 | Accreditation does not cover peptide purity, identity or amount |
| Krause AnalyticalUnited States | Endotoxin: Add-on (LAL, USP <85>). Microbes: 14-day USP <71>, add-on | Identity (mass spec), Amount, Endotoxin, Sterility (USP <71>), Metals, Solvents | Quote only | Not stated | Not stated | On its own site | None found | 95; latest Sep 17, 2026 | None flagged |
| Horizon AnalyticalUnited States | Endotoxin: Only in the $850 Full QC panel. Microbes: SD PharmLabs; only in the Full QC panel | Identity (mass spec), Amount, Endotoxin, Sterility (subcontracted), Metals | $200 | Stated: 2 to 7 days; its pages give four figures | Ask first | On its own site | None claimed | 219; latest Sep 9, 2026 | 2 of 15 reports we checked date the analysis before receipt |
| FinnrickUnited States. Testing service | Endotoxin: Add-on from $29; varies by lab and product. Microbes: Add-on from $159; type depends on the lab | Identity, Amount, Endotoxin, Sterility (type not stated), Metals, Solvents | $59 to $249; free for eligible US buyers | Stated: 14 to 28 days | No | On its own site | Not a lab; depends on the partner lab | 12,165 sent through Finnrick; latest Sep 25, 2026 | Results come from partner labs with different methods |
| ILS LaboratoriesUnited States | Endotoxin: Full QC panel; reports show EU/mL or Pass. Microbes: DNA microarray screen in Full QC, not USP <71> | Identity (retention time), Amount, Endotoxin, DNA screen (not sterility), Metals | $200 | Stated: 7 days | Not stated | On its own site | ISO 17025 (PJLA); scope lists no peptide tests | 1,200; latest Sep 24, 2026 | Accreditation scope does not list peptide tests |
| Peptide TestUnited States. Ordering site; reports come from TrustPointe Analytics | Endotoxin: Offered, $300. Microbes: Offered, $300; type not stated | Amount, Endotoxin, Sterility (type not stated), Metals | $200 to $400 | Not stated | Not stated | On its own site | None claimed | 340; latest Apr 6, 2026 | Order pages do not name the lab that runs the test |
| Accumark LabsUnited States | Endotoxin: $200 add-on; LAL, USP <85>. Microbes: qPCR screen sold as "Sterility (PCR)" | Identity (HPLC only), Amount, Endotoxin, DNA screen (not sterility) | $250 | Measured: median 3 business days | Not stated | On its own site | None; says "ISO 17025 Pending" | 168; latest Sep 8, 2026 | Its "Sterility (PCR)" test looks for microbial DNA; it is not a growth test |
| BTLabsUnited States | Endotoxin: Offered; price list behind a form. Microbes: Offered; type not stated | Identity (FT-IR), Amount, Endotoxin (quote), Sterility (type not stated) | Quote only | Not stated | Not stated | On its own site | None found | 83; latest Sep 16, 2026 | Identity by FT-IR, not mass spectrometry |
| Ethos AnalyticsUnited States | Endotoxin: Gel clot, USP <85>. Microbes: Petrifilm or qPCR microbial test, not USP <71> | Identity (retention time), Amount (quote), Endotoxin (quote), Microbial count (not sterility), Metals (quote) | Quote only | Measured: median 3 business days | Not stated | On its own site | ISO 17025 (PJLA); scope not posted | 97; latest Sep 16, 2026 | Purity printed as ">99%", not as a number |
| MDx BioAnalytical LaboratoryUnited States | Endotoxin: Gel clot or kinetic turbidimetric (quote). Microbes: Named on home page; method not stated | Identity (mass spec), Amount (quote), Endotoxin (quote), Sterility (type not stated), Metals (quote), Solvents (quote) | Quote only | No figure stated | Not stated | On its own site | ISO 17025 (PJLA) expired; renewal pending | 207; latest Jun 27, 2026 | ISO 17025 certificate expired; re-accreditation pending after a March 2026 audit |
| TestidesCanada | Endotoxin: LAL. Microbes: TAMC/TYMC count; not a sterility test | Identity (retention time), Amount, Endotoxin, Microbial count (not sterility), Metals | Quote only | Stated: 10 days from receipt, or a refund | Canada and US only | On its own site | None; cites an unnamed partner lab | 165; latest Sep 11, 2026 | Intake paused Jul to Sep 2026; check it is open before shipping |
| MZ BiolabsUnited States | Endotoxin: USP <85>, for injection vials | Identity (mass spec), Amount (quote), Endotoxin (quote) | Quote only | Not published | Ask first | No public lookup | None found | 52; latest Sep 6, 2026 | None flagged |
To plan the order, read how to choose the test, vials and lab. When the report arrives, check it against the lab's own records.
What counts as a known issue
A known issue is a documented fact to weigh before you pay: a term of service, what a test actually measures, or a service problem. We list it only when it comes from the lab's own pages, terms or reports, a public registry, our own measurements that meet a stated threshold, a named third party, or at least two public first-hand reports. Single anonymous posts, claims by competing labs or sellers, and private chats never count. An issue is not a verdict on a lab. The table shows one recent issue per lab. Each profile lists every issue with its source and date.
Before you pay for a test
Someone may already have tested your batch. Search our archive by batch code first.
How we built this
Each profile comes from the lab's own pages, terms and reports, public registries and the reports in our archive. Every fact shows its source and the date we saw it, and carries a review date. A price or time we have not re-checked by its review date shows when we last confirmed it and is left out of Cheapest and Fastest.
"Reports we hold" counts the reports in our archive that name the lab directly. Reports sent through Finnrick are counted on the Finnrick page, not under the lab that ran them. Sellers choose which reports to publish, and we hold only what reached our archive. These numbers describe our archive, not each lab's total work.
We do not yet compare labs' amount results. No lab has 30 batches in our archive that another named lab also tested. Why labs report different amounts.
Report counts come from our archive as of Oct 10, 2026. TitrateLab takes no payments from labs. Report a correction.
Labs not yet profiled
Analiza Białek, Analytical Formulations, Harrens Lab, Ichor Life Sciences, Pacific Coast Biologics, Peptide Test Canada / SideChain Analytics, PharmLabs, SteriGenix and Uzorak. We have not checked their tests, prices or terms.