Harrens Lab
Hayward, California laboratory. A2LA lists Harrens Lab's certificates 4074.01 and 4074.02 as active to September 2028, but their scopes cover cannabis, hemp and food microbiology testing, not peptides (A2LA register read 22 October 2026). Its peptide report is among the most complete we have read: a report number and separate internal sample identifier, distinct entry, analysis and report dates, a physical description of the vial, and a full written method, with identity by LC-MS/MS. The laboratory offers no public route to verify an individual report. Methods: Identity by LC-MS/MS; purity and content by RP-HPLC with external standard calibration against a multi-point curve.
- Vendors with its COAs
- 1
Vendors with its COAs
- Peptides tested
- 1
Peptides tested
Tier B-
Hayward, CA (3507 Breakwater Ave)
Checks run
- BusinessL1 Real business: Pass
- IndependentL2 Independence: Pass
- Verify routeL3 Verification route: Fail
- MethodL4 Identity method: Pass
- Track recordL5 Track record: Pass
- AccreditedL6 Accreditation: Fail
Six published checks, the same for every laboratory. Results and evidence
About Harrens Lab
Harrens Lab is an independent analytical lab based in Hayward, CA (3507 Breakwater Ave), rated tier B- in the Peptide Source Review lab directory. A2LA's register lists certificates 4074.01 and 4074.02 for Harrens Lab Inc. as active to 30 September 2028, but their scopes cover cannabis, hemp and food microbiology testing and no peptide test, so they do not earn the accreditation point (check L6, read 22 October 2026). Certificates from a tier B- laboratory earn the +2 laboratory points in our lab rubric.
1 US peptide vendor in our audit publishes certificates naming Harrens Lab, led by Nextday Peptides at 3.27/10. The reports cover Identity by LC-MS/MS; purity and content by RP-HPLC with external standard calibration against a multi-point curve.
How we graded Harrens Lab
Each check is the same for every laboratory (the rules). Checked 2026-10-22.
| Result | Check | What we found |
|---|---|---|
| Pass | L1 Real business | A2LA's register lists Harrens Lab Inc., Suites 3505 and 3507 Breakwater Avenue, Hayward, CA; reports are signed by Nihari Perera, PhD, Laboratory Director.Evidence for L1 (opens in new tab)customer.a2la.orgchecked |
| Pass | L2 Independence | harrenslab.com was registered 2015-08-31, before its peptide report (2026-09-24); its A2LA listing as a commercially available laboratory shows it serves the public (rule L2b); no link to a listed vendor found.Evidence for L2 (opens in new tab)rdap.orgchecked |
| Fail | L3 Verification route | Report IN2026090181 carries no QR code, link or access code, and harrenslab.com has no lookup.Evidence for L3 (opens in new tab)nextdaypeptides.comchecked |
| Pass | L4 Identity method | Identity Confirmation by LC-MS/MS: Pass.Evidence for L4 (opens in new tab)nextdaypeptides.comchecked |
| Pass | L5 Track record | Checked 2026-10-22 for any client: the earliest dated Harrens Lab report we could open was completed 2024-01-26 (hemp flower, for H H Harvest CO), and its public reports name at least four unrelated clients.Evidence for L5 (opens in new tab)cdn.shopify.comchecked |
| Fail | L6 Accreditation | A2LA certificates 4074.01 and 4074.02 are active to 2028-09-30, but their scopes cover cannabis, hemp and food or drug microbiology, with no peptide or endotoxin test.Evidence for L6 (opens in new tab)customer.a2la.orgchecked |
Accreditation (check L6)
- Accrediting body
- A2LA
- Certificate
- 4074.01 (biological) and 4074.02 (chemical)
- Status on the register
- Active
- Valid
- until 2028-09-30
- Scope covers peptide testing
- No (scope: 4074.02: cannabinoids, terpenes, heavy metals, moisture, mycotoxins, pesticides, residual solvents and water activity on cannabis and hemp; 4074.01: plate counts, Listeria and Salmonella on food, drug and cannabis products; no peptide or endotoxin test)
- Register read
- 2026-10-22
The accrediting body’s register entry (opens in new tab)customer.a2la.orgread
The accreditation point counts only when the register itself shows the accreditation active with a scope that covers peptide testing; the laboratory’s own claim does not count.
Vendors publishing Harrens Lab certificates
Peptides tested here
Products whose certificate on a vendor page names Harrens Lab. Compare sources for each.
Similar labs
Other tier B- labs in our directory.
Harrens Lab: Frequently Asked Questions
Is Harrens Lab accredited?
We have not confirmed ISO/IEC 17025 accreditation for Harrens Lab that is active on the accrediting body's register with a scope covering peptide testing (check L6). A2LA's register lists certificates 4074.01 and 4074.02 for Harrens Lab Inc. as active to 30 September 2028, but their scopes cover cannabis, hemp and food microbiology testing and no peptide test, so they do not earn the accreditation point (check L6, read 22 October 2026).
Which peptide vendors use Harrens Lab?
1 vendor in our independent audit publishes certificates naming Harrens Lab: Nextday Peptides. The full list with scores is on this page.
What does Harrens Lab test for?
Harrens Lab performs Identity by LC-MS/MS; purity and content by RP-HPLC with external standard calibration against a multi-point curve on research-peptide samples.