How can I verify a peptide vendor’s lab report myself?

Find the certificate for the exact lot you were shipped and check whether the laboratory named on it publishes its own lookup. 513 of the 627 certificates recorded here were signed by a laboratory that does. Each certificate page here links to that lookup and explains which identifier it wants, so the report can be pulled from the laboratory rather than from the vendor's own website.

What makes a certificate of analysis trustworthy?

Three things on the document itself: a named third-party laboratory that is not the vendor, an assayed mass printed against the labelled mass rather than purity alone, and a lot identifier that matches the vial you were sent. A certificate with no named laboratory, or one naming the vendor as its own tester, is not third-party evidence.

Does PepIndex test the peptides itself?

No. These 627 records are read from 610 documents that vendors and laboratories published. A vendor-published certificate is scored as a claim, not as corroboration; only an independently commissioned assay counts as verified.

Evidence

Every certificate behind the rankings

627 certificates of analysis, each on its own page with the laboratory that signed it, the lot it describes, the purity it reports and a link to the document itself. They cover 25 vendors and 45 compounds, and 513 of them name a laboratory that publishes a public lookup, so you can pull the report from the lab rather than from the vendor. PepIndex is an independent index of research-peptide vendors: no vendor can pay for a rank, and every record links to the document it was read from.

627 records · 627 attributed to one laboratory · 610 source documents · 13 named laboratories · newest assay 30 Sept 2026

Laboratories

All laboratories

Laboratory	Certificates	Vendors	Mean purity	Public lookup
Freedom Diagnostics Testing	272	13	99.67%	Yes
ILS Laboratories	173	5	99.61%	Yes
MZ Biolabs	30	1	99.64%	Not found
AV Analytics	29	1	99.78%	Not found
United Laboratories	27	1	99.64%	Yes
KMD Analytical (KMD Group LLC)	22	1	99.62%	Yes
Vanguard Laboratory	18	3	99.43%	Not found
BTLabs	17	1	99.74%	Not found
Bioviridian Inc.	14	2	99.79%	Yes
Kovera Labs	11	3	99.61%	Not found
Horizon Analytical	9	2	99.31%	Not found
Janoshik Analytical	4	2	99.82%	Yes
Krause Analytical LLC	1	1	99.90%	Yes

The 60 most recent assays

Full set as CSV or JSON

Assayed	Compound	Vendor	Lot	Purity	Label → assayed	Laboratory
30 Sept 2026	Retatrutide	Origin Labs	001	99.57%	10 mg → 10.48 mg	ILS Laboratories
24 Sept 2026	Thymosin Alpha-1	Hydro Research Peptides	HR-2026-1289	99.35%	10 mg → 10.61 mg	ILS Laboratories
24 Sept 2026	ARA-290	Hydro Research Peptides	HR-2026-1256	99.93%	10 mg → 10.28 mg	ILS Laboratories
24 Sept 2026	BPC-157	Northline Labs	DPS-4179638	99.36%	10 mg → 9.93 mg	ILS Laboratories
24 Sept 2026	Ipamorelin	Northline Labs	DPS-7408699	99.63%	5 mg → 4.99 mg	ILS Laboratories
23 Sept 2026	BPC-157	Next Gen Peptides	bpc10-10	99.73%	10 mg → 10.48 mg	ILS Laboratories
23 Sept 2026	PT-141	Next Gen Peptides	pt10-04	99.93%	10 mg → 10.4 mg	ILS Laboratories
23 Sept 2026	Epithalon	Next Gen Peptides	epth50-08	99.17%	50 mg → 50.94 mg	ILS Laboratories
23 Sept 2026	GHK-Cu	Next Gen Peptides	ghk-15	99.92%	50 mg → 52.35 mg	ILS Laboratories
23 Sept 2026	Selank	Next Gen Peptides	slk09	99.58%	10 mg → 10.24 mg	ILS Laboratories
22 Sept 2026	BPC-157	Next Gen Peptides	BC10-11	99.83%	10 mg → 10.45 mg	ILS Laboratories
21 Sept 2026	KPV	PeptidePlugs	1130L-DK	99.84%	30 mg → 36.73 mg	Freedom Diagnostics Testing
18 Sept 2026	Semax	Origin Labs	Orig2609160095	99.97%	10 mg → 12 mg	Freedom Diagnostics Testing
18 Sept 2026	Retatrutide	Origin Labs	Orig2609160091	99.82%	30 mg → 32.65 mg	Freedom Diagnostics Testing
18 Sept 2026	Selank	Origin Labs	Orig2609160094	99.77%	10 mg → 11.28 mg	Freedom Diagnostics Testing
18 Sept 2026	SS-31	Origin Labs	Orig2609160093	99.95%	10 mg → 13.46 mg	Freedom Diagnostics Testing
18 Sept 2026	DSIP	Origin Labs	Orig2609160092	99.62%	10 mg → 9.65 mg	Freedom Diagnostics Testing
18 Sept 2026	BPC-157	Next Gen Peptides	BPC20-07	99.43%	20 mg → 20.73 mg	ILS Laboratories
18 Sept 2026	GHK-Cu	Next Gen Peptides	GHKCU	99.9%	50 mg → 52.39 mg	ILS Laboratories
18 Sept 2026	SS-31	One Aminos	ONE-SS10-091826	99.587%	10 mg → 11.15 mg	United Laboratories
18 Sept 2026	TB-500	One Aminos	ONE-TB10-091826	99.745%	10 mg → 12.57 mg	United Laboratories
18 Sept 2026	Tesamorelin	One Aminos	ONE-TM10-091826	99.76%	10 mg → 10.43 mg	United Laboratories
18 Sept 2026	VIP	One Aminos	VIP5-091526	99.6%	5 mg → 5.1 mg	United Laboratories
17 Sept 2026	BPC-157	Vial Drop Labs	VDL-20260827-RX87	99.98%	10 mg → 10.09 mg	KMD Analytical (KMD Group LLC)
17 Sept 2026	BPC-157	Simple Peptide	BPC20-092026-1	99.76%	20 mg → 22.28 mg	Freedom Diagnostics Testing
17 Sept 2026	BPC-157	Simple Peptide	BPTB30-092026-1	99.12%	15 mg → 15.86 mg	Freedom Diagnostics Testing
17 Sept 2026	LL-37	Vial Drop Labs	VDL-20260901-QFT7	97.3%	5 mg → 5.22 mg	KMD Analytical (KMD Group LLC)
17 Sept 2026	Melanotan II	Vial Drop Labs	VDL-20260901-NNHT	98.68%	10 mg → 10.09 mg	KMD Analytical (KMD Group LLC)
17 Sept 2026	GHK-Cu	Vial Drop Labs	VDL-20260827-RX87	99.98%	50 mg → 50.21 mg	KMD Analytical (KMD Group LLC)
17 Sept 2026	KPV	Vial Drop Labs	VDL-20260827-RX87	99.96%	10 mg → 10.18 mg	KMD Analytical (KMD Group LLC)
17 Sept 2026	TB-500	Vial Drop Labs	VDL-20260827-RX87	99.99%	10 mg → 10.24 mg	KMD Analytical (KMD Group LLC)
17 Sept 2026	Melanotan I	One Aminos	ONE-MT1-091726	99.582%	10 mg → 10.39 mg	United Laboratories
17 Sept 2026	Melanotan II	One Aminos	ONE-MT2-091726	99.544%	10 mg → 10.26 mg	United Laboratories
17 Sept 2026	NAD+	One Aminos	ONE-ND500-091726	99.46%	500 mg → 509.62 mg	United Laboratories
17 Sept 2026	PT-141	One Aminos	ONE-PT10-091726	99.52%	10 mg → 10.69 mg	United Laboratories
17 Sept 2026	Selank	One Aminos	ONE-SEL10-091726	99.46%	10 mg → 11.5 mg	United Laboratories
17 Sept 2026	Semax	One Aminos	ONE-SEM10-091726	99.442%	10 mg → 12.38 mg	United Laboratories
16 Sept 2026	KPV	PeptidePlugs	71110L-DK	99.59%	10 mg → 13.23 mg	Freedom Diagnostics Testing
16 Sept 2026	Tesamorelin	PeptidePlugs	29310L-DK	99.9%	10 mg → 11.88 mg	Freedom Diagnostics Testing
16 Sept 2026	Glutathione	One Aminos	ONE-GT600-091626	99.325%	600 mg → 580.58 mg	United Laboratories
16 Sept 2026	IGF-1 LR3	One Aminos	ONE-IG1-091626	99.552%	1 mg → 1.08 mg	United Laboratories
16 Sept 2026	Ipamorelin	One Aminos	ONE-IPA10-091626	99.546%	10 mg → 10.7 mg	United Laboratories
16 Sept 2026	Kisspeptin	One Aminos	ONE-KISS10-091626	99.554%	10 mg → 10.35 mg	United Laboratories
16 Sept 2026	KPV	One Aminos	ONE-KPV10-091626	99.94%	10 mg → 10.7 mg	United Laboratories
16 Sept 2026	MOTS-c	One Aminos	ONE-MS10-091626	99.841%	10 mg → 11.03 mg	United Laboratories
15 Sept 2026	Retatrutide	One Aminos	ONE-RT10-091526	99.89%	10 mg → 10.26 mg	United Laboratories
15 Sept 2026	Tirzepatide	One Aminos	ONE-TZ10-091526	99.728%	10 mg → 10.29 mg	United Laboratories
15 Sept 2026	GHK-Cu	One Aminos	ONE-CU100-091526	99.71%	100 mg → 106.05 mg	United Laboratories
15 Sept 2026	Retatrutide	One Aminos	ONE-RT20-091526	99.94%	20 mg → 20.7 mg	United Laboratories
14 Sept 2026	Tesamorelin	Next Gen Peptides	TSM20-06	99.64%	20 mg → 20.52 mg	ILS Laboratories
14 Sept 2026	Tirzepatide	Next Gen Peptides	TRZ60-05	99.68%	60 mg → 64.01 mg	ILS Laboratories
14 Sept 2026	Glutathione	Next Gen Peptides	GLUT-07	99.34%	1500 mg → 1551.94 mg	ILS Laboratories
14 Sept 2026	GHK-Cu	Amino Club	GHK0003	99.94%	50 mg → 52.69 mg	ILS Laboratories
14 Sept 2026	ARA-290	One Aminos	ONE-ARA10-091426	99.365%	10 mg → 10.62 mg	United Laboratories
14 Sept 2026	BPC-157	One Aminos	ONE-BPC10-091426	99.483%	10 mg → 10.2 mg	United Laboratories
14 Sept 2026	Cagrilintide	One Aminos	ONE-CAG10-091426	99.542%	10 mg → 10.16 mg	United Laboratories
14 Sept 2026	DSIP	One Aminos	ONE-DS10-091426	99.733%	10 mg → 10.02 mg	United Laboratories
14 Sept 2026	Epithalon	One Aminos	ONE-EPI10-091426	99.629%	10 mg → 12.64 mg	United Laboratories
14 Sept 2026	GHK-Cu	One Aminos	ONE-CU50-091426	99.9%	50 mg → 52.43 mg	United Laboratories
13 Sept 2026	KPV	Vial Drop Labs	VDL-20260901-HAH4	99.98%	10 mg → 10.09 mg	KMD Analytical (KMD Group LLC)

What is not here

A certificate only earns a page when the laboratory on it can be named and checked. Records whose laboratory field holds a placeholder, a signature block, or the vendor’s own name stay on that vendor’s profile and are counted against it, but they are not published here as evidence of third-party testing, because they are not evidence of it.

Every figure above is read from the document linked on its page. Where a field could not be read, it is recorded as absent rather than inferred.