Which peptide testing laboratories let you verify a report yourself?

Freedom Diagnostics Testing, ILS Laboratories, United Laboratories, KMD Analytical (KMD Group LLC), Bioviridian Inc., Janoshik Analytical, Krause Analytical LLC publish public lookups. A certificate from those laboratories carries an identifier that can be entered on the laboratory's own site, returning the report from the laboratory rather than from the vendor. 513 of the 627 certificates indexed here were signed by one of them.

Which peptide testing laboratories are ISO/IEC 17025 accredited?

Of the 13 laboratories named on certificates in this index, ILS Laboratories and Vanguard Laboratory claim ISO/IEC 17025 accreditation on their own site. None publishes the accreditation body or a certificate number that would let the claim be checked in the body's directory, so PepIndex records the claim as the laboratory's, not as verified. Vendor claims that their laboratory is accredited are recorded separately and attributed only when the vendor uses a single laboratory.

Is a laboratory being named on a COA enough?

It is the minimum, not the whole test. A named laboratory that is not the vendor, an assayed mass printed against the labelled mass, and a lot number matching your vial are the three things that make a certificate checkable. A laboratory that also publishes a lookup removes the last reason to take the vendor’s word for any of it.

Laboratories

Who actually signed the certificates

13 analytical laboratories are named on the 627 certificates behind these rankings. 7 of them publish a public lookup, which is what lets a buyer confirm a report at the laboratory instead of trusting the copy on the vendor's website; those 7 account for 513 of the 627. A further 37 records we hold name no laboratory a reader could check, and are listed below rather than counted. PepIndex is an independent index of research-peptide vendors; no laboratory or vendor pays to appear here.

13 laboratories · 627 certificates · 7 with a public lookup · 2 claiming ISO/IEC 17025

Every laboratory on record

Laboratory	Location	Certificates	Vendors	Mean purity	Newest assay	Public lookup	ISO 17025, lab’s own claim	ISO 17025, attributed by vendors
Freedom Diagnostics Testing	Franklin, Tennessee	272	13	99.67%	21 Sept 2026	Yes	No claim on its site	By ZC Labs
ILS Laboratories	San Diego, California	173	5	99.61%	30 Sept 2026	Yes	Claimed on its own site	By Next Gen Peptides
MZ Biolabs	Tucson, Arizona	30	1	99.64%	10 Apr 2026	Not found	No claim on its site	Not attributed
AV Analytics	—	29	1	99.78%	3 Sept 2026	Not found	Not checked	Not attributed
United Laboratories	—	27	1	99.64%	18 Sept 2026	Yes	No claim on its site	Not attributed
KMD Analytical (KMD Group LLC)	Chatsworth, California	22	1	99.62%	17 Sept 2026	Yes	No claim on its site	Not attributed
Vanguard Laboratory	Olympia, Washington	18	3	99.43%	15 Jun 2026	Not found	Claimed on its own site	Not attributed
BTLabs	—	17	1	99.74%	10 Jul 2026	Not found	No claim on its site	By Curo
Bioviridian Inc.	College Station, Texas	14	2	99.79%	4 Sept 2026	Yes	No claim on its site	Not attributed
Kovera Labs	—	11	3	99.61%	22 Jul 2026	Not found	No claim on its site	Not attributed
Horizon Analytical	—	9	2	99.31%	3 Jun 2026	Not found	No claim on its site	Not attributed
Janoshik Analytical	Czech Republic	4	2	99.82%	24 Apr 2026	Yes	Not checked	Not attributed
Krause Analytical LLC	Austin, Texas	1	1	99.90%	9 Apr 2026	Yes	No claim on its site	Not attributed

Records that name no checkable laboratory

37 of 664 records

A certificate whose laboratory field holds the vendor’s own name, a placeholder, or a name no laboratory can be traced to is a real record of a document we read, but it is not evidence of third-party testing. These records stay on the vendor profiles and compound pages, marked as such, and are not counted toward any laboratory above.

What the field holds	As printed	Records	Vendors
The vendor’s own name	hydroresearchpeptides.com	9	Hydro Research Peptides
The vendor’s own name	Mile High Compounds	5	MHMile High Compounds
The vendor’s own name	Evolabs Research	2	Evo Labs Research
The vendor’s own name	Hydro Research Peptides	1	Hydro Research Peptides
Name could not be traced	Richard Sylvester MD	4	EPExtreme Peptides
Name could not be traced	Cohen Lab, USC	1	MHMile High Compounds
Name could not be traced	Hydro Research Labs	1	Hydro Research Peptides
No laboratory named	Principal Chemist	3	Koi Peptides, IPImproved Peptides
No laboratory named	Independent Third-Party Lab	2	MHMile High Compounds
No laboratory named	Not named on certificate	2	IPImproved Peptides
No laboratory named	ABC Labs	1	MHMile High Compounds
No laboratory named	Confirmed	1	IPImproved Peptides
No laboratory named	Independent Lab A	1	MHMile High Compounds
No laboratory named	Independent Lab B	1	MHMile High Compounds
No laboratory named	Independent Testing Facility	1	MHMile High Compounds
No laboratory named	Laboratory	1	Simple Peptide
No laboratory named	Not provided	1	Koi Peptides

How to read this table

Certificate count is how many lots that laboratory signed among the documents we have read. It reflects which vendors we cover and how much each publishes, so it measures our coverage of the laboratory, not the laboratory’s size.

Mean purity is the average of what those certificates reported. It describes the samples the laboratory received. A high figure says those lots assayed well; it is not a rating of the laboratory and cannot be read as one.

Accreditation is stated twice because it comes from two places. The laboratory’s own claim is what its website says, read on the date shown on its profile; a claim is recorded as the laboratory’s until it names an accreditation body and a certificate that can be looked up there. The vendor attribution is narrower still: a vendor that records ISO/IEC 17025 for its testing laboratory tells us which laboratory is accredited only when it uses one. Where a vendor uses several, its claim is left unattributed rather than shared out among them, because the certificate does not say which bench it belongs to.