479 third-party lab reports published Volume pricing on every peptide, applied automatically in the cart: 3% off 2–3 · 8% off 4–5 · 12% off 6–7 · 15% off 8–9 · 20% off 10–19 · 25% off 20–29 · 30% off 30–39 · 35% off 40+ units · solvents and lab supplies excluded 99.65% median purity across 272 lots 257 / 257 lots pass sterility

Independent labs · ISO/IEC 17025

Tested by someone other than us.

Other people check our peptides, not us. Every batch goes to an outside lab, and every result we publish is that lab's own report.

Create your free researcher accountSee every certificate
Arriveslocked awayVials pulledsheet names testsTo the labfrom ScottsdaleReport backquality inboxRead by QANichole and Torie Publishedas received the batch stays locked the whole way — "In testing"
"A few vials from every batch travel to the lab. The rest waits in a locked room until the report comes back."
Tested at outside US labs, never by usEvery batch. Every result is the lab's own report.
15 tests · 23 units on every new batchOne failed vial and the batch is destroyed. Earlier batches show their own count.
Published as receivedOn the product page and behind the QR code on the vial.
Ships same day from Scottsdale, AZOrder by 2:30 PM MST, weekdays.

Three labs. Each one has a job.

We pick them. We do not own them.

Vanguard Laboratory

Olympia, Washington · since our first batch

Runs the chemistry tests and the two-week germ test.

ISO/IEC 17025:2017 · A2LA 6377.01.01 · our lab since February 2025

Verify a report with the lab →

Eagle Analytical Services

Houston, Texas · founded 2003 · 200+ staff · 80,000 sq ft · our lab since September 2025

Runs the fast germ count on every current batch.

ISO/IEC 17025:2017 (A2LA) · biological and chemical testing

What the fast test is →

Ethos Analytics

Phoenix, Arizona · accredited since 2022 · our lab since September 2026

Second-opinion and re-test chemistry. Founded and run by two scientists.

ISO/IEC 17025:2017 (PJLA)

When we ask for a second opinion →

A lab has to pass five checks before we trust it.

Like a job interview with five questions.

BEFORE A LAB GETS A SINGLE VIAL No ties to anyone who sells peptidesmost new labs fail hereServes manufacturers, not consumersour kind of work, all dayISO/IEC 17025 for peptides, our tests on scopenot food or cannabisUSP methods wherever one existsthe public rulebook, not a house recipeRuns under GMP or GLPrules for doing it carefully, with records All five yes → our panel: Vanguard · Eagle · Ethos one no on any line and we keep looking
"Five yes-or-no questions. A lab has to get all five right before we send it a single vial."
  • No ties to product sellers.
  • Their main clients are labs and industry, not consumers.
  • Accredited for peptides by a recognised body, with our methods on the list.
  • USP methods wherever one exists.
  • GMP or GLP practice: written procedures, calibrated instruments, a record of every test.
A closer look

Since August 2026 every new lab clears these five checks before we rely on any of its reports. USP is the public rulebook of standard test methods; GMP and GLP are the rules for making things and running tests with records; accreditation only for food or cannabis does not count.

Next to every test is the name of the lab that did it.

Nothing is "validated between labs". Each row says who.

Vanguard Laboratory · Washington13 of the 15 testsEagle Analytical · Texasthe rapid germ countUs · the check we computecontent vs certificate germs get a dot in both lab lanes:growth test at Vanguard, rapid count at Eagle
"Two lanes, and one small lane for the check we compute ourselves. Germs get a dot in both lab lanes."
A closer look

On 3 in 4 batches two labs are involved: one for chemistry, one for the fast germ count. Verification by phone or email is Vanguard's; the other labs confirm a report on request. For a methods section, every row names the lab and the method, so a result can be cited and repeated.

The number on your vial should match the number on the report.

If it does, that report is about your vial.

peptidologyBatch 1729 15 testsyour vial same number Certificate of analysisBatch 1729tested by Vanguard Laboratory IdentityPASSPurityPASSSterility · two waysPASS… 12 more lines the lab report for that batch
"Same number on the label and on the report. The QR code opens the same page."
A closer look

Some Vanguard reports are also on the lab's own site (Verify online). Vanguard is behind on uploading, so a newer batch may not be online yet; the lab will check any report by phone or email.

If two labs say different things

The worse answer wins, and a third lab breaks the tie. The measured number is the one you calculate from at the bench.

measured 98.5%this one counts printed ">99%"supports, never overrides the worse measured result winsgerms, germ dust or metals → a third test decides
"A measured number beats a printed one. For germs, germ dust or metals, a third test decides."
A closer look

The worse measured result governs; a lab that prints only a threshold supports a result but never overrides a measured one. Our quality team decides on the one case. A batch with an open question does not go on sale.

These numbers count themselves.

They come from the certificates.

272lab reports published
207batches tested at two labs
2labs on the current panel
0reports this month

Common questions

Short answers. Ask in chat for more.

How do you choose your labs?
  • No ties to product sellers.
  • Main clients are labs and industry, not consumers.
  • ISO/IEC 17025 from a recognised body, with our methods on the scope.
  • USP methods wherever one exists.
  • GMP or GLP practice.
Why does the full panel check 9 vials for germs?
  • Five go to Vanguard for the two-week growth test. Four go to Eagle for the fast count.
  • We have seen batches where some vials failed and others passed. One clean vial does not prove a clean batch.

Ready when you are

Register free. See every lab report. Order today, ships today.

Create your free researcher accountHow we test every batch →

For research use only. Not intended for diagnostic or therapeutic use. Registration confirms you are at least 21 and purchasing solely for research purposes.

Phone / text(480) 974-4660
Email[email protected]
ChatMon–Sat, 9 AM–midnight MST
Scottsdale, AZ11111 N Scottsdale Rd, Suite 205P

For research use only. Not intended for diagnostic or therapeutic use.

Free researcher accountCatalog + every lab report
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Peptidology supplies research-use-only materials to qualified researchers aged 21 and over. Certificates and company information remain open to everyone.

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