Testing lab
Harrens Lab: what we could verify
Real lab, accredited (scope not viewed). Hayward, California. Not named on the COAs of any vendor we track. Checked Oct 16, 2026.
- Website
- harrenslab.com
- Location
- Hayward, California [1]
- Accreditation
- California's hemp-lab list records A2LA certificate 4074.02, valid to September 30, 2028, and A2LA's certificate lookup returns two Harrens numbers, 4074.01 and 4074.02. We couldn't open A2LA's scope documents, so whether either covers peptides is unknown. [1] [2]
Is it real? What we checked
Real lab, accredited California's list of approved hemp-testing labs records Harrens Lab's ISO/IEC 17025 accreditation from A2LA (certificate 4074.02, to September 2028) at its Hayward address, and Finnrick lists 128 tests run there since September 2026. We couldn't read the scope, so whether it covers peptides is unknown. How every lab name compares.
- Unknown Its own website. harrenslab.com blocked our checks. [3]
- Partly A registered company. A2LA and California's hemp-lab list name Harrens Lab Inc.; California's business register blocked our search. [1] [4]
- Yes A published lab address. 3507 Breakwater Ave, Hayward, California, on California's list of approved hemp-testing labs. [1]
- Partly Accreditation, checked with the accreditation body. California's hemp-lab list records A2LA certificate 4074.02, valid to September 30, 2028, and A2LA's certificate lookup returns two Harrens numbers, 4074.01 and 4074.02. We couldn't open A2LA's scope documents, so whether either covers peptides is unknown. [1] [2]
- Yes Independent evidence that it operates. California approves it for hemp THC testing (February 2026 to February 2027), and Finnrick lists 128 tests run there between September and October 2026. [1] [5]
- Yes Independent of vendors. No tie to a vendor found. [6]
- Unknown COAs can be checked with the lab. We couldn't read its site.
- 1 yr+ Domain age. harrenslab.com was registered on August 31, 2015. [7]
Published prices
Harrens Lab doesn't publish prices that we could read.
Compare what labs charge to test a peptide, who takes samples from individuals and how each lab confirms identity.
Vendors whose COAs name Harrens Lab
None of the vendors we track names Harrens Lab on its COAs.
How to verify a Harrens Lab COA, with every lab's lookup side by side.
Harrens Lab: questions people ask
Is Harrens Lab legit?
Our verdict: real lab, accredited (scope not viewed). California's list of approved hemp-testing labs records Harrens Lab's ISO/IEC 17025 accreditation from A2LA (certificate 4074.02, to September 2028) at its Hayward address, and Finnrick lists 128 tests run there since September 2026. We couldn't read the scope, so whether it covers peptides is unknown. The checks behind it are listed above, and every lab name we checked is compared in one place.
Is Harrens Lab accredited?
California's hemp-lab list records A2LA certificate 4074.02, valid to September 30, 2028, and A2LA's certificate lookup returns two Harrens numbers, 4074.01 and 4074.02. We couldn't open A2LA's scope documents, so whether either covers peptides is unknown.
How do I check a Harrens Lab COA?
We found no way to look up a report on Harrens Lab's own website. Ask the lab directly whether it issued the report, and check that the batch number matches your vial.
Sources
- [PDF, no title metadata] CDFA Industrial Hemp Program, Laboratory Approval, as of September 12 2026
- [JSON: A2LA certificate-code lookup, keyword '4074']
- [not fetched by us] lab website as listed in Finnrick's partner-lab data
- [JSON: A2LA directory lab lookup, keyword 'Harrens']
- Partner Testing Labs · Finnrick
- Test Your Peptides at Harrens Lab · Finnrick
- RDAP record for harrenslab.com