Semaglutide lab tests

451 certificates of analysis for Semaglutide are on file — 444 for single vials and 7 for blends and other forms — from 141 shops and 21 labs. The latest was tested on 28 Sep 2026.

These are certificates shops have chosen to publish, verified for authenticity before listing. Because shops decide which COAs to make public, the set reflects the batches they published rather than every production batch — a selection bias we state openly. What shop COAs show →

Tests on file

451

444 single vials · 7 blends & other forms

Median purity

99.78%

usual 99.23–99.92% · shop COAs

Measured vs label

111%

median · 10 under 90% · 105 over 120%

Latest test

28 Sep 2026

21 labs · 141 shops

Look up your vial's lot →Semaglutide prices →Semaglutide calculator Get a vial tested

What Semaglutide results look like

single vials only · 444 purity results · 442 measured-content results

Purity is tightly bunched: the middle 80% of results sit within 0.7 points. Measured content spreads across 27 points of the label.

HPLC purity

99.23–99.92%middle 80% of results

median 99.78%98% at 99% or higher0 under 98%

% HPLC purity

Measured content vs label

100–127%middle 80% of results

median 111%10 under 90%105 over 120%

% of the labelled amount

outside the usual rangeEndotoxin reported on 55 of 444 (12%)Confirmed on the lab's own portal: 80 (18%)Most tested size: 10 mg (184), then 5 mg (133) and 20 mg (48)

Latest Semaglutide tests

10 most recent · all formsAll 451 ↓

Latest Semaglutide lab tests
Tested	Shop	Lab	Purity	Measured vs label	Endotoxin	Record
28 Sep 2026	Peptide Hackers	Accumark Labs	99.93%	37.82 / 5 mg 756% of labelCheck label	—	7832✓
25 Sep 2026	Purely Peptides	Krause Analytical	98.60%	33.4 / 30 mg 111% of label	—	tes8zb2✓
25 Sep 2026	Purely Peptides	Krause Analytical	98.80%	32.3 / 30 mg 108% of label	—	muz22ts✓
8 Sep 2026	Purely Peptides	Bioviridian	99.78%	31.38 / 30 mg 105% of label	—	SEM-20260828-01✓
7 Sep 2026	PeptuviaSupplier-provided	Janoshik Labs	99.60%	5.95 / 5 mg 119% of label	—	PSSEMA5-1✓
2 Sep 2026	NWF Bio Peptides	Janoshik Labs	99.87%	7.9 / 5 mg 158% of labelCheck label	—	SM5/2026-9-5✓
23 Aug 2026	Purely Peptides	Bioviridian	99.78%	10.34 / 10 mg 103% of label	—	SEM-20260811-01✓
12 Aug 2026	Peptide Plugs	freedomdiagnosticstesting.com	99.86%	24.19 / 20 mg 121% of label	Pass	135-02-2B✓
11 Aug 2026	Backroad Aminos	freedomdiagnosticstesting.com	99.94%	11.25 / 10 mg 113% of label	Pass	0826SM10✓
8 Aug 2026	Peptide Plugs	freedomdiagnosticstesting.com	99.85%	11.76 / 10 mg 118% of label	Pass	189-02-DK✓

98% or higher95–98%90–95%under 90%✓ found on the lab's own portalHover an endotoxin chip for the lab's exact wording

Results by lab

single vials · labs with the most Semaglutide tests

Semaglutide single-vial results by testing lab
Lab	Tests	Median purity	Median measured vs label	Endotoxin reported	Confirmed on lab portal
freedomdiagnosticstesting.com	174	99.84%	114%	29	46
Janoshik Labs	114	99.70%	110%	0	12
Chromate	37	99.81%	106%	4	1
Vanguard Laboratory	19	99.80%	110%	6	0
TrustPointe Analytics	16	99.58%	115%	0	2
Kovera Labs	15	99.84%	115%	6	7
MZ Biolabs	15	99.72%	106%	0	0
Horizon Analytical	9	99.23%	101%	0	0

Differences reflect the vials each lab received and how it reports — this is not a ranking of labs. Every lab with a Semaglutide test on file is linked under More on Semaglutide.

What semaglutide testing has to rule out

Semaglutide is a 31-amino-acid analogue of human GLP-1(7-37) — Aib at position 8, Arg34, and a C18 fatty-diacid on Lys26 via a γGlu/OEG linker — CAS 910463-68-2 (PubChem CID 56843331), formula C₁₈₇H₂₉₁N₄₅O₅₉, molecular weight 4,113.6 g/mol, development codes NN9535 / NNC 0113-0217. It is not built on an exendin-4 backbone; that is the scaffold of exenatide, a different drug, and a product page repeating the exendin-4 lineage has copied its chemistry from the wrong molecule. "GLP-1SG" is a catalog code for semaglutide, not a separate or cheaper compound.

The molecule is easy to identify by mass, so the failures that actually occur are substitution of a salt form and quantity that does not match the label. FDA has stated that semaglutide sodium and semaglutide acetate "are different active ingredients than are used in the approved drugs", and that the agency "does not have information on whether these salts have the same chemical and pharmacologic properties." A vial of a salt form can return a genuine 99% HPLC purity figure — of something no randomised trial has tested. A salt form also changes what is being weighed: a labelled 10 mg can be 10 mg of a salt of which the peptide itself is some smaller fraction. Neither effect is visible on a purity percentage; both are visible on a certificate that states the form, and both are resolvable by mass spectrometry plus a net-content measurement.

Tirzepatide, sold alongside it, sits at 4,813.0 g/mol (CAS 2023788-19-2). The distance between 4,113.6 and 4,813.0 is why mass spectrometry is not optional: HPLC reports what proportion of the sample is the main peak, not which molecule that peak is.

Mass spectrometry near 4,113.6 Da, confirming the 31-residue analogue with its C18 diacid attached and separating it from tirzepatide at 4,813.0 Da, from fragments, and from a peptide that merely elutes in the right place.
The salt form — free base, sodium or acetate — written on the certificate. "Pharmaceutical grade" does not answer the question.
Net peptide content or amino acid analysis, reported separately from purity.

All Semaglutide tests

452 records · 1 supplier-provided, listed and left out of the benchmarks · page 1 of 2 · newest first · blends tagged

Records 1–300 of 452 · 1 supplier-provided, listed and left out of the benchmarks, most recent first.
Tested	Shop	Lab	Purity	Measured vs label	Endotoxin	Record
28 Sep 2026	Peptide Hackers	Accumark Labs	99.93%	37.82 / 5 mg 756% of labelCheck label	—	7832✓
25 Sep 2026	Purely Peptides	Krause Analytical	98.60%	33.4 / 30 mg 111% of label	—	tes8zb2✓
25 Sep 2026	Purely Peptides	Krause Analytical	98.80%	32.3 / 30 mg 108% of label	—	muz22ts✓
8 Sep 2026	Purely Peptides	Bioviridian	99.78%	31.38 / 30 mg 105% of label	—	SEM-20260828-01✓
7 Sep 2026	PeptuviaSupplier-provided	Janoshik Labs	99.60%	5.95 / 5 mg 119% of label	—	PSSEMA5-1✓
2 Sep 2026	NWF Bio Peptides	Janoshik Labs	99.87%	7.9 / 5 mg 158% of labelCheck label	—	SM5/2026-9-5✓
23 Aug 2026	Purely Peptides	Bioviridian	99.78%	10.34 / 10 mg 103% of label	—	SEM-20260811-01✓
12 Aug 2026	Peptide Plugs	freedomdiagnosticstesting.com	99.86%	24.19 / 20 mg 121% of label	Pass	135-02-2B✓
11 Aug 2026	Backroad Aminos	freedomdiagnosticstesting.com	99.94%	11.25 / 10 mg 113% of label	Pass	0826SM10✓
8 Aug 2026	Peptide Plugs	freedomdiagnosticstesting.com	99.85%	11.76 / 10 mg 118% of label	Pass	189-02-DK✓
31 Jul 2026	S1 Research	ILS Laboratories	99.50%	5.33 / 5 mg 107% of label	—	SMW071526✓
15 Jul 2026	Molecular Solutions Peptides	freedomdiagnosticstesting.com	99.88%	12.04 / 10 mg 120% of label	Pass	R260708-SM10-R001✓
13 Jul 2026	Double R Labs	Kovera Labs	99.53%	5.23 / 5 mg 105% of label	Pass	DRL-07-SM5✓
13 Jul 2026	Global Aminos	freedomdiagnosticstesting.com	99.84%	11.12 / 10 mg 111% of label	—	View record →
10 Jul 2026	PurgoLabs Peptides	freedomdiagnosticstesting.com	99.95%	24.55 / 20 mg 123% of label	—	PL-GLP1-03✓
9 Jul 2026	Ascend Science	Kovera Labs	98.50%	10.92 / 10 mg 109% of label	—	C37H53N40S189✓
9 Jul 2026	Ascend Science	Kovera Labs	99.66%	5.8 / 5 mg 116% of label	—	C37H53N40S189✓
8 Jul 2026	PepGenics Research	freedomdiagnosticstesting.com	99.93%	7.92 / 5 mg 158% of labelCheck label	—	SM5063026✓
7 Jul 2026	American Peptides	Bioviridian	99.90%	10.52 / 10 mg 105% of label	Pass	SEMA10-0616
6 Jul 2026	Modified Aminos	Ethos Analytics	99.00%	10.33 / 10 mg 103% of label	Pass	MA-GLP1S-100
3 Jul 2026	NuLife Peptides	freedomdiagnosticstesting.com	99.89%	30.79 / 30 mg 103% of label	Pass	NLGLP130501✓
29 Jun 2026	Elevated Peptides	MZ Biolabs	99.68%	not reported	—	2026-06-22
26 Jun 2026	Ascension Peptides	Kovera Labs	99.25%	5.92 / 5 mg 118% of label	Pass	04-05260628✓
24 Jun 2026	My Amino Lab	Kovera Labs	99.62%	5.56 / 5 mg 111% of label	—	V2606-S5-2401✓
24 Jun 2026	S1 Research	ILS Laboratories	99.97%	31.07 / 30 mg 104% of label	—	SMR060926✓
24 Jun 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.75%	11.07 / 10 mg 111% of label	—	81488WE✓
22 Jun 2026	PeptideRUO	freedomdiagnosticstesting.com	99.91%	6.22 / 5 mg 124% of label	—	SM050615✓
20 Jun 2026	AMC Essentials	Kovera Labs	99.64%	24.05 / 22 mg 109% of label	Pass	AMC-SM22-01✓
18 Jun 2026	Zen Aminos	Horizon Analytical	99.49%	9.82 / 10 mg 98% of label	—	ZA-3417042-P
17 Jun 2026	American Peptides	Bioviridian	99.90%	20.93 / 20 mg 105% of label	Pass	SEMA20-0528
16 Jun 2026	Puratek Peptides	ILS Laboratories	99.63%	10.52 / 10 mg 105% of label	—	PUR1S002✓
15 Jun 2026	Umbrella Labs	Vanguard Laboratory	99.80%	18.8 / 20 mg 94% of label	—	ULP-48814D
15 Jun 2026	Umbrella Labs	Vanguard Laboratory	99.80%	14.19 / 15 mg 95% of label	—	ULP-48814C
15 Jun 2026	Umbrella Labs	Vanguard Laboratory	99.80%	5.07 / 5 mg 101% of label	—	ULP-48814B
15 Jun 2026	Umbrella Labs	Vanguard Laboratory	99.80%	1.64 / 2 mg 82% of label	—	ULP-48814A
15 Jun 2026	LA Peptides	Bioviridian	99.90%	5.18 / 5 mg 104% of label	Pass	1318
15 Jun 2026	LA Peptides	Bioviridian	99.90%	10.67 / 10 mg 107% of label	Pass	1318
14 Jun 2026	Nura Peptide	freedomdiagnosticstesting.com	99.91%	12.43 / 10 mg 124% of label	Pass	GS10-062026-1✓
13 Jun 2026	National Science Labs	freedomdiagnosticstesting.com	99.91%	6.05 / 5 mg 121% of label	—	C187H291N45O59
13 Jun 2026	National Science Labs	freedomdiagnosticstesting.com	99.70%	6.48 / 5 mg 130% of label	—	C221H342N46O68
12 Jun 2026	Peptide Partners	TrustPointe Analytics	99.97%	11.44 / 10 mg 114% of label	—	View record →
12 Jun 2026	Peptide Minds	freedomdiagnosticstesting.com	99.84%	6.22 / 5 mg 124% of label	Pass	PMINDS69✓
12 Jun 2026	GenPeptide	freedomdiagnosticstesting.com	99.65%	12.8 / 10 mg 128% of label	—	GPSEM10060726✓
10 Jun 2026	Peptide Partners	Kovera Labs	99.69%	11.98 / 10 mg 120% of label	Pass	SM202607✓
9 Jun 2026	Peptide Plugs	ILS Laboratories	99.07%	20.52 / 20 mg 103% of label	—	125-01-SM✓
9 Jun 2026	Kalyx Labs	freedomdiagnosticstesting.com	99.83%	11.7 / 10 mg 117% of label	—	SM10-B02✓
4 Jun 2026	Research Chem HQ	ILS Laboratories	99.83%	10.49 / 10 mg 105% of label	Reported	#HX2X7✓
3 Jun 2026	PeptidePro Canada	Janoshik Labs	99.64%	10.31 / 10 mg 103% of label	—	2511-1-246
30 May 2026	BulkGLP	freedomdiagnosticstesting.com	99.87%	23.6 / 20 mg 118% of label	Pass	062502
25 May 2026	EZ Peptides	Janoshik Labs	99.73%	11.2 / 10 mg 112% of label	—	EZP-1P1005102026-03✓
25 May 2026	Ameano Peptides	Janoshik Labs	99.75%	11.24 / 10 mg 112% of label	—	AMP-1P1005102026-03✓
18 May 2026	AMC Essentials	freedomdiagnosticstesting.com	99.88%	8.38 / 7 mg 120% of label	Pass	AMC-SM7-01✓
15 May 2026	Glow Aminos	ILS Laboratories	99.79%	10.69 / 10 mg 107% of label	—	GL-010117✓
12 May 2026	PurgoLabs Peptides	freedomdiagnosticstesting.com	99.92%	11.63 / 10 mg 116% of label	—	PL-GLP1-02✓
9 May 2026	TruLab Peptides	freedomdiagnosticstesting.com	99.59%	11.37 / 10 mg 114% of label	—	Poly2605070122
4 May 2026	Petratide Science	freedomdiagnosticstesting.com	99.90%	12.16 / 10 mg 122% of label	—	PS05-SM1B
3 May 2026	True Research Labs	Horizon Analytical	99.23%	10.12 / 10 mg 101% of label	—	TRL-2885342
3 May 2026	Zen Aminos	Horizon Analytical	99.23%	10.12 / 10 mg 101% of label	—	ZA-2885342-P
30 Apr 2026	Glacier Aminos	Kovera Labs	99.85%	12.33 / 10 mg 123% of label	—	semga-03
30 Apr 2026	Glacier Aminos	Kovera Labs	99.84%	34.56 / 30 mg 115% of label	Pass	TM30GA-06
26 Apr 2026	Peptide Minds	freedomdiagnosticstesting.com	99.93%	6.33 / 5 mg 127% of label	—	PM-04326✓
23 Apr 2026	Glow Aminos	ILS Laboratories	99.64%	5.23 / 5 mg 105% of label	Pass	GL-010089✓
21 Apr 2026	S1 Research	freedomdiagnosticstesting.com	99.56%	10.69 / 10 mg 107% of label	Pass	SM04172651✓
18 Apr 2026	Vertex Labs	BTLabs	99.70%	31.4 / 30 mg 105% of label	—	SM0000038
16 Apr 2026	EZ Peps	freedomdiagnosticstesting.com	99.75%	24.61 / 20 mg 123% of label	Pass	26-U1-RBT / OZ201126✓
16 Apr 2026	EZ Peps	freedomdiagnosticstesting.com	99.75%	24.61 / 20 mg 123% of label	Pass	26-U1-RBT / OZ201126✓
14 Apr 2026	NextEdge Peptides	Janoshik Labs	99.89%	10.02 / 10 mg 100% of label	—	SM10-91704✓
10 Apr 2026	Elite Research USA	BioRegen	99.54%	10.21 / 10 mg 102% of label	—	24100SY0326
10 Apr 2026	Prime Peptides	Janoshik Labs	99.68%	10.54 / 10 mg 105% of label	—	3272026SM
9 Apr 2026	Peppy&Me	Krause Analytical	99.90%	30.2 / 30 mg 101% of label	—	PMSM302603A
9 Apr 2026	Peppy&Me	Krause Analytical	99.70%	20.1 / 20 mg 101% of label	—	PMSM202603A
9 Apr 2026	Peppy&Me	Krause Analytical	99.90%	10.3 / 10 mg 103% of label	—	PMSM102603A
9 Apr 2026	Nova Peptide Supply	freedomdiagnosticstesting.com	99.78%	12.07 / 10 mg 121% of label	Pass	2604090072
8 Apr 2026	Pure Health Peptides	BioRegen	99.37%	5.3 / 5 mg 106% of label	—	TUY-030926
7 Apr 2026	Blank Peptides	freedomdiagnosticstesting.com	99.80%	12.54 / 10 mg 125% of label	—	665394
6 Apr 2026	Pure Health Peptides	Ethos Analytics	99.00%	10.18 / 10 mg 102% of label	—	TUY-030926
5 Apr 2026	Rivn Peptides	freedomdiagnosticstesting.com	99.80%	11.33 / 10 mg 113% of label	—	8266
4 Apr 2026	Glacier Aminos	Kovera Labs	99.89%	17.47 / 10 mg 175% of labelCheck label	Pass	SM10GA-02
3 Apr 2026	Polaris Peptides	TrustPointe Analytics	99.48%	12.61 / 10 mg 126% of label	—	POL-S10-14✓
3 Apr 2026	Instant Peptides	Kovera Labs	99.89%	11.16 / 10 mg 112% of label	—	2026-0262-A
1 Apr 2026	Molecular Solutions Peptides	freedomdiagnosticstesting.com	99.84%	13.8 / 10 mg 138% of label	Pass	R260323-SM10-R001✓
31 Mar 2026	EVO Labs Research	Kovera Labs	99.95%	5.91 / 5 mg 118% of label	—	KVR-2026-CE4F8D
31 Mar 2026	EVO Labs Research	Kovera Labs	99.97%	10.67 / 10 mg 107% of label	—	KVR-2026-E78C2E
27 Mar 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.90%	34.13 / 30 mg 114% of label	—	EMIKSS0326✓
27 Mar 2026	Elutide	Horizon Analytical	99.49%	9.82 / 10 mg 98% of label	—	E-3417042
27 Mar 2026	VRIL Peptides	Janoshik Labs	99.82%	32.4 / 30 mg 108% of label	—	20260311
26 Mar 2026	AMC Essentials	freedomdiagnosticstesting.com	99.87%	25.37 / 22 mg 115% of label	Pass	S22-0011ACF✓
25 Mar 2026	Prime Peptides	Vanguard Laboratory	99.02%	5.51 / 5 mg 110% of label	Pass	21222026SM
20 Mar 2026	Oath Peptides	freedomdiagnosticstesting.com	99.94%	11.52 / 10 mg 115% of label	—	B0526
20 Mar 2026	NuScience Peptides	freedomdiagnosticstesting.com	99.86%	6.59 / 5 mg 132% of label	—	00256
20 Mar 2026	NuScience Peptides	freedomdiagnosticstesting.com	99.95%	11.56 / 10 mg 116% of label	—	00256
19 Mar 2026	Peptide Crafters	Janoshik Labs	99.66%	5.42 / 5 mg 108% of label	—	PC-G4-S5
18 Mar 2026	Orbitrex Peptides	freedomdiagnosticstesting.com	99.83%	23.14 / 20 mg 116% of label	Pass	1G200426
17 Mar 2026	Glacier AminosBlendSemaglutide/Selank	Kovera Labs	99.91%	21.98 / 20 mg 110% of label	—	SEMGA-01
16 Mar 2026	Biopeptitech	Accurate Test Lab	99.96%	12 / 10 mg 120% of label	—	7021
15 Mar 2026	Glow Aminos	freedomdiagnosticstesting.com	99.80%	11.28 / 10 mg 113% of label	Pass	GL-010070✓
14 Mar 2026	Nela Peptides	freedomdiagnosticstesting.com	99.28%	11.37 / 11 mg 103% of label	—	2603120136
12 Mar 2026	PurgoLabs Peptides	freedomdiagnosticstesting.com	99.88%	12.09 / 10 mg 121% of label	—	PL-002✓
12 Mar 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.91%	5.61 / 5 mg 112% of label	—	HKEMSS52601✓
11 Mar 2026	Molecular Solutions Peptides	freedomdiagnosticstesting.com	99.75%	12.73 / 10 mg 127% of label	—	R260304-SMG10-W001✓
10 Mar 2026	Offline Peptides	freedomdiagnosticstesting.com	99.89%	12.1 / 10 mg 121% of label	—	OP-SM10-0326✓
10 Mar 2026	OROS Research	freedomdiagnosticstesting.com	99.90%	10.88 / 10 mg 109% of label	Pass	1724211
9 Mar 2026	Instant Peptides	Kovera Labs	99.95%	34.51 / 30 mg 115% of label	—	2026-0287-A
9 Mar 2026	Instant Peptides	freedomdiagnosticstesting.com	99.95%	33.36 / 30 mg 111% of label	Pass	2026-0287-A
9 Mar 2026	Instant Peptides	freedomdiagnosticstesting.com	99.93%	11.33 / 10 mg 113% of label	Pass	2026-0286-A
6 Mar 2026	True Research Labs	Horizon Analytical	99.19%	5.05 / 5 mg 101% of label	—	TRL-4193082
6 Mar 2026	GenPeptide	freedomdiagnosticstesting.com	99.65%	6.35 / 5 mg 127% of label	—	GPSEM05030526✓
6 Mar 2026	GenPeptide	freedomdiagnosticstesting.com	99.08%	12.23 / 10 mg 122% of label	—	GPSEM10030526✓
6 Mar 2026	Elutide	Horizon Analytical	99.19%	5.05 / 5 mg 101% of label	—	E-4193082
6 Mar 2026	Glacier Aminos	Kovera Labs	99.89%	11.39 / 10 mg 114% of label	—	SEMGA-02
6 Mar 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.89%	11.12 / 10 mg 111% of label	—	LBL-1125-TR10-1095
6 Mar 2026	Direct Peptides	Horizon Analytical	99.19%	5.05 / 5 mg 101% of label	—	DPS-4193082
5 Mar 2026	PeptidePro Canada	Janoshik Labs	99.84%	21.02 / 20 mg 105% of label	—	2510-1-247
5 Mar 2026	Orbitrex Peptides	freedomdiagnosticstesting.com	98.98%	12.37 / 10 mg 124% of label	Pass	1G100326
5 Mar 2026	Felix Chemical Supply	freedomdiagnosticstesting.com	99.81%	16.48 / 15 mg 110% of label	Pass	030226-S15-9 (purple)
5 Mar 2026	Felix Chemical Supply	freedomdiagnosticstesting.com	99.81%	6.04 / 5 mg 121% of label	Pass	030226-S3-A (red)
4 Mar 2026	KOLD Peptides	Accumark Labs	99.57%	11.96 / 10 mg 120% of label	—	1050
3 Mar 2026	KOLD Peptides	Accumark Labs	99.56%	6.14 / 5 mg 123% of label	—	1045
3 Mar 2026	HkRoids	Vanguard Laboratory	99.61%	4.47 / 5 mg 89% of label	—	01.17
3 Mar 2026	NuScience Peptides	freedomdiagnosticstesting.com	99.92%	26.52 / 20 mg 133% of label	—	A-22726
28 Feb 2026	Ion Peptide	Analytical Formulations Inc	99.80%	5.35 / 5 mg 107% of label	—	GPS5-02232026
27 Feb 2026	Reta One Labs	Vanguard Laboratory	99.76%	9.56 / 10 mg 96% of label	—	SM100326
27 Feb 2026	Reta One Labs	Vanguard Laboratory	99.31%	19.4 / 20 mg 97% of label	—	SM200326
27 Feb 2026	Tydes	Janoshik Labs	99.77%	11.57 / 12 mg 96% of label	—	SM12021626
27 Feb 2026	Omegamino	freedomdiagnosticstesting.com	99.89%	14.84 / 10 mg 148% of label	—	31754 (Purple Cap)
27 Feb 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.56%	33.78 / 30 mg 113% of label	—	LBL-1025-RT30-1084
27 Feb 2026	Peptide Crafters	Janoshik Labs	99.67%	10.37 / 10 mg 104% of label	—	PC-G2-S10
27 Feb 2026	NG Peptide	freedomdiagnosticstesting.com	99.96%	43.6 / 43.6 mg 100% of label	—	TZ13335
27 Feb 2026	NG Peptide	freedomdiagnosticstesting.com	99.84%	51.3 / 51.3 mg 100% of label	—	TZ13335
26 Feb 2026	Trusted Peptides	BioRegen	99.63%	10.7 / 10 mg 107% of label	—	View record →
24 Feb 2026	Ascension Peptides	MZ Biolabs	99.98%	5.2 / 5 mg 104% of label	—	04-01260229
24 Feb 2026	EZ Peptides	Janoshik Labs	99.77%	5.44 / 5 mg 109% of label	—	EZP-1P0502152026-01✓
24 Feb 2026	Ameano Peptides	Janoshik Labs	99.74%	5.33 / 5 mg 107% of label	—	AMP-1P0502152026-01✓
24 Feb 2026	Nexaph	Janoshik Labs	99.81%	5.33 / 5 mg 107% of label	—	NXP-1P0502152026-01
22 Feb 2026	Oath Peptides	freedomdiagnosticstesting.com	99.97%	4.47 / 5 mg 89% of label	—	B0526
21 Feb 2026	EZ Peps	freedomdiagnosticstesting.com	99.80%	26.39 / 20 mg 132% of label	—	25-U11-RBT / Oz201126✓
20 Feb 2026	Oath Peptides	freedomdiagnosticstesting.com	99.84%	15.19 / 10 mg 152% of labelCheck label	—	B0526
18 Feb 2026	Peptide Maxxing	Janoshik Labs	99.60%	11.58 / 10 mg 116% of label	—	SEM692✓
18 Feb 2026	Purified Peptide	freedomdiagnosticstesting.com	99.33%	14.73 / 10 mg 147% of label	—	SEMA1012SN
18 Feb 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.85%	17.27 / 15 mg 115% of label	—	LBL-1125-RT15-1077
18 Feb 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.76%	36.25 / 30 mg 121% of label	—	LBL-1025-SM30-1094
17 Feb 2026	TriVial BioWorks	Chromate	99.84%	8.78 / 10 mg 88% of label	Pass	S10-0213✓
17 Feb 2026	Offline Peptides	freedomdiagnosticstesting.com	99.82%	26.04 / 20 mg 130% of label	—	OP-SM20-0226✓
17 Feb 2026	Profound Aminos	TrustPointe Analytics	99.84%	13.24 / 15 mg 88% of label	—	SPL-3069
17 Feb 2026	Glacier Aminos	ILS Laboratories	99.60%	10.43 / 10 mg 104% of label	—	SEM1G82501
17 Feb 2026	Coastal Peptides	Chromate	98.04%	5.29 / 4.99 mg 106% of label	—	GLP1-S-5-200
17 Feb 2026	Coastal Peptides	Chromate	99.84%	10.74 / 10 mg 107% of label	—	GLP1-S-10-001
16 Feb 2026	Amino Tech	freedomdiagnosticstesting.com	99.52%	27.48 / 20 mg 137% of label	—	View record →
16 Feb 2026	Amino Tech	freedomdiagnosticstesting.com	99.52%	12.76 / 10 mg 128% of label	—	View record →
16 Feb 2026	Amino Tech	freedomdiagnosticstesting.com	99.75%	7.4 / 5 mg 148% of label	—	View record →
16 Feb 2026	Grey Market Peptide	freedomdiagnosticstesting.com	99.52%	27.48 / 20 mg 137% of label	—	View record →
16 Feb 2026	Grey Market Peptide	freedomdiagnosticstesting.com	99.52%	12.76 / 10 mg 128% of label	—	View record →
16 Feb 2026	Grey Market Peptide	freedomdiagnosticstesting.com	99.75%	7.4 / 5 mg 148% of label	—	View record →
16 Feb 2026	Prime Peptides	Janoshik Labs	99.52%	11.01 / 10 mg 110% of label	—	1052026SM
16 Feb 2026	Soma ChemsClosed	freedomdiagnosticstesting.com	99.52%	27.48 / 20 mg 137% of label	—	Soma2602130259
16 Feb 2026	Soma ChemsClosed	freedomdiagnosticstesting.com	99.52%	12.76 / 10 mg 128% of label	—	Soma2602130163
16 Feb 2026	Soma ChemsClosed	freedomdiagnosticstesting.com	99.75%	7.4 / 5 mg 148% of label	—	Soma2602130151
16 Feb 2026	Soma ChemsClosedBlendCyanocobalamin (B12)/GLP SM	freedomdiagnosticstesting.com	99.35%	1.77 / 1 mg 177% of labelCheck label	—	Soma2602120296
12 Feb 2026	Oath Peptides	freedomdiagnosticstesting.com	99.95%	5.49 / 5 mg 110% of label	—	1ABF
10 Feb 2026	Valor Peptides	Accumark Labs	99.57%	11.83 / 10 mg 118% of label	—	SMG1001
10 Feb 2026	Peptide Pros	Bioviridian	99.80%	9.88 / 10 mg 99% of label	—	View record →
9 Feb 2026	Peptide Crafters	Janoshik Labs	99.73%	21.3 / 20 mg 107% of label	—	PC-G3-S20
9 Feb 2026	OROS Research	freedomdiagnosticstesting.com	99.95%	5.54 / 5 mg 111% of label	—	1473244
7 Feb 2026	Mile High CompoundsBlendSemaglutide/Selank	Vanguard Laboratory	99.80%	20.38 / 20 mg 102% of label	—	SSB-020-MH-01
6 Feb 2026	Royal Peptides	Janoshik Labs	99.41%	20.81 / 20 mg 104% of label	—	View record →
3 Feb 2026	AMC Essentials	freedomdiagnosticstesting.com	99.81%	8.97 / 7 mg 128% of label	Pass	SM7-0015ACF✓
3 Feb 2026	Crownwell Research	freedomdiagnosticstesting.com	99.41%	10.79 / 10 mg 108% of label	—	CW-SM10001✓
3 Feb 2026	Crownwell Research	freedomdiagnosticstesting.com	99.22%	5.44 / 5 mg 109% of label	—	CW-SM05001✓
3 Feb 2026	OROS Research	freedomdiagnosticstesting.com	99.75%	11.39 / 10 mg 114% of label	—	1316243
3 Feb 2026	PrimeLab Peptides	freedomdiagnosticstesting.com	99.85%	6.57 / 5 mg 131% of label	—	093337484SEMA
3 Feb 2026	PrimeLab Peptides	freedomdiagnosticstesting.com	99.40%	10.29 / 10 mg 103% of label	Check	011337484SEMA
2 Feb 2026	True Research Labs	Horizon Analytical	99.56%	10.13 / 10 mg 101% of label	—	TRL-5946785
2 Feb 2026	Pure Health Peptides	Ethos Analytics	99.00%	5.27 / 5 mg 105% of label	—	CHK-011526
2 Feb 2026	Atomik Labz	Janoshik Labs	99.83%	6.03 / 5 mg 121% of label	—	SEM50121212026
2 Feb 2026	Atomik Labz	Janoshik Labs	99.79%	10.05 / 10 mg 101% of label	—	SM1001212026
1 Feb 2026	Puratek Peptides	freedomdiagnosticstesting.com	99.39%	5.8 / 5 mg 116% of label	—	GLP1S5001✓
31 Jan 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.61%	21.77 / 15 mg 145% of label	—	BCSM1SIKEM26✓
29 Jan 2026	Oath Peptides	freedomdiagnosticstesting.com	99.09%	5.71 / 5 mg 114% of label	—	1ABF
29 Jan 2026	Oath Peptides	freedomdiagnosticstesting.com	99.70%	16.23 / 15 mg 108% of label	—	3ABF
27 Jan 2026	Liberty Peptides	Horizon Analytical	99.10%	10.98 / 10 mg 110% of label	—	LPUS27002
25 Jan 2026	Penguin Peptides	Janoshik Labs	99.64%	30 / 30 mg 100% of label	—	View record →
23 Jan 2026	PeakForm Peptides	freedomdiagnosticstesting.com	99.55%	10.27 / 10 mg 103% of label	—	PF-2026-010
23 Jan 2026	Next Gen Compounds	Janoshik Labs	99.77%	21.58 / 10 mg 216% of labelCheck label	—	SEM-10-001-0102
23 Jan 2026	Pura Peptides	freedomdiagnosticstesting.com	99.76%	12.62 / 10 mg 126% of label	—	2601230026
22 Jan 2026	Prime Peptides	Janoshik Labs	99.79%	16.9 / 15 mg 113% of label	—	11092025SM
22 Jan 2026	Instant Peptides	freedomdiagnosticstesting.com	99.70%	11.01 / 10 mg 110% of label	Pass	2026-0230-A
21 Jan 2026	Ion Peptide	freedomdiagnosticstesting.com	99.77%	22.71 / 20 mg 114% of label	—	GLP1S20-011626
21 Jan 2026	Ion Peptide	freedomdiagnosticstesting.com	99.88%	38.17 / 30 mg 127% of label	—	GLP1S30-011626
21 Jan 2026	Peptide Crafters	Vanguard Laboratory	99.80%	6.02 / 5 mg 120% of label	—	PC-G3-S5
21 Jan 2026	NG Peptide	freedomdiagnosticstesting.com	99.68%	72.94 / 72.94 mg 100% of label	—	TZG6-2
21 Jan 2026	NG Peptide	freedomdiagnosticstesting.com	99.87%	73.03 / 73.03 mg 100% of label	—	View record →
20 Jan 2026	Penguin Peptides	Janoshik Labs	99.81%	21.16 / 20 mg 106% of label	—	View record →
20 Jan 2026	Penguin Peptides	Janoshik Labs	99.89%	10.48 / 10 mg 105% of label	—	View record →
20 Jan 2026	Penguin Peptides	Janoshik Labs	99.73%	5.41 / 5 mg 108% of label	—	View record →
19 Jan 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.81%	5.96 / 5 mg 119% of label	—	LBL-1025-SM5-1091
16 Jan 2026	Blue Sky Peptide	MZ Biolabs	99.97%	not reported	—	1SWS0126
15 Jan 2026	EZ Peps	freedomdiagnosticstesting.com	99.83%	6.18 / 5 mg 124% of label	—	25-U11-BGT/OZ51126✓
15 Jan 2026	Ion Peptide	freedomdiagnosticstesting.com	99.54%	4.55 / 10 mg 45% of labelCheck label	—	GLP15S-011226
14 Jan 2026	ThreeSide Peptides	Krause Analytical	99.26%	4.96 / 5 mg 99% of label	—	SM52512
14 Jan 2026	ThreeSide Peptides	Krause Analytical	99.37%	10.3 / 10 mg 103% of label	—	SMI102512
13 Jan 2026	Zen Aminos	freedomdiagnosticstesting.com	99.83%	11.07 / 10 mg 111% of label	—	ZASG02
13 Jan 2026	Panda Peptides	Janoshik Labs	99.72%	5.54 / 5 mg 111% of label	—	View record →
13 Jan 2026	Chameleon PeptidesClosed	Janoshik Labs	99.72%	5.54 / 5 mg 111% of label	—	View record →
12 Jan 2026	Peptide Hubs	Janoshik Labs	99.75%	5.35 / 5 mg 107% of label	—	GASEMA12✓
12 Jan 2026	Lumin Research	BioRegen	99.52%	12.2 / 10 mg 122% of label	—	View record →
12 Jan 2026	Nova Peptide Supply	freedomdiagnosticstesting.com	99.68%	11.11 / 10 mg 111% of label	Pass	2601120001
12 Jan 2026	Felix Chemical Supply	freedomdiagnosticstesting.com	99.57%	9.02 / 10 mg 90% of label	—	010726-S10-B
12 Jan 2026	Ion Peptide	freedomdiagnosticstesting.com	99.63%	11.1 / 10 mg 111% of label	—	GLP1S10-010826
11 Jan 2026	Peptira	—	99.86%	11.15 / 10 mg 112% of label	Pass	SEMA10-005
11 Jan 2026	NG Peptide	freedomdiagnosticstesting.com	99.86%	69.83 / 69.83 mg 100% of label	—	TRZ136
10 Jan 2026	Peptide Partners	TrustPointe Analytics	99.82%	11.85 / 10 mg 118% of label	—	SM202601
9 Jan 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.62%	19.01 / 20 mg 95% of label	—	EMTRSM20HBT✓
9 Jan 2026	Midwest Peptide	freedomdiagnosticstesting.com	99.86%	23.76 / 10 mg 238% of labelCheck label	—	MPSM001
5 Jan 2026	Certified Peptides	Vanguard Laboratory	99.57%	5.87 / 5 mg 117% of label	Pass	25126SG53
5 Jan 2026	Orbitrex Peptides	Chromate	99.79%	11.16 / 10 mg 112% of label	Reported	1G10126
3 Jan 2026	GenPeptide	freedomdiagnosticstesting.com	99.92%	10.59 / 10 mg 106% of label	—	GPSEM10122825✓
3 Jan 2026	GenPeptide	freedomdiagnosticstesting.com	99.78%	6.06 / 5 mg 121% of label	—	GPSEM05122825✓
3 Jan 2026	Loti Labs	SR Bio Labs	99.95%	5.74 / 5 mg 115% of label	—	LOT-SEMA-00010
31 Dec 2025	Skye Peptides	Janoshik Labs	99.73%	11.77 / 10 mg 118% of label	—	SM25-10-003
29 Dec 2025	Ktechpeptide	Janoshik Labs	99.68%	31.81 / 30 mg 106% of label	—	2025-12✓
29 Dec 2025	Research Peptides Europe	liquilabs	99.80%	9.51 / 10 mg 95% of label	Pass	Semaglutide/2025-12-03
29 Dec 2025	Tydes	Janoshik Labs	99.14%	6.12 / 5 mg 122% of label	—	SM05121725
29 Dec 2025	Skye Peptides	Janoshik Labs	99.20%	6.26 / 5 mg 125% of label	—	SM25-05-003
26 Dec 2025	Glacier Aminos	freedomdiagnosticstesting.com	99.78%	15.45 / 16 mg 97% of label	Pass	RET16GA03
23 Dec 2025	Profound Aminos	TrustPointe Analytics	99.44%	6.27 / 5 mg 125% of label	—	SPL-2667
23 Dec 2025	Profound Aminos	TrustPointe Analytics	99.64%	22.14 / 20 mg 111% of label	—	SPL-2665
23 Dec 2025	Profound Aminos	TrustPointe Analytics	99.84%	21.19 / 20 mg 106% of label	—	SPL-2673
23 Dec 2025	Profound AminosBlendSemaglutide/Cagrilintide	TrustPointe Analytics	99.72%	10.63 / 10 mg 106% of label	—	SPL-2664
23 Dec 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.87%	15.39 / 15 mg 103% of label	—	121525-S15-6
23 Dec 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.94%	10.75 / 10 mg 108% of label	—	121525-S10-A
23 Dec 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.91%	5.31 / 5 mg 106% of label	—	121525-S5-C
23 Dec 2025	NG Peptide	freedomdiagnosticstesting.com	99.99%	34.36 / 34.36 mg 100% of label	—	TRZ61
23 Dec 2025	NG Peptide	freedomdiagnosticstesting.com	99.94%	51.76 / 51.76 mg 100% of label	—	2512200036
22 Dec 2025	Instant Peptides	freedomdiagnosticstesting.com	99.88%	30.84 / 30 mg 103% of label	—	2025-0287-A
20 Dec 2025	Glacier Aminos	freedomdiagnosticstesting.com	99.84%	22.42 / 24 mg 93% of label	Pass	RET24GA03
19 Dec 2025	Peptide Crafters	Janoshik Labs	99.81%	20.21 / 20 mg 101% of label	—	PC-G2-S20
19 Dec 2025	OROS Research	freedomdiagnosticstesting.com	99.92%	20.07 / 20 mg 100% of label	—	933107
18 Dec 2025	Certified Peptides	Vanguard Laboratory	99.26%	11.37 / 10 mg 114% of label	Pass	250908SEMA10
18 Dec 2025	HkRoids	Vanguard Laboratory	99.80%	6.26 / 5 mg 125% of label	—	View record →
16 Dec 2025	LA Peptides	freedomdiagnosticstesting.com	99.92%	5.14 / 5 mg 103% of label	—	318✓
13 Dec 2025	OROS Research	freedomdiagnosticstesting.com	99.94%	10.18 / 10 mg 102% of label	—	876254
12 Dec 2025	Molecular Solutions Peptides	freedomdiagnosticstesting.com	99.46%	5.81 / 5 mg 116% of label	—	R251201-SMG-N001✓
12 Dec 2025	Disguised Alpha	Chromate	99.36%	32.43 / 30 mg 108% of label	—	5159981X
12 Dec 2025	NG Peptide	freedomdiagnosticstesting.com	99.97%	42.73 / 42.73 mg 100% of label	—	TRZ1153
12 Dec 2025	NG Peptide	freedomdiagnosticstesting.com	99.96%	21.42 / 21.42 mg 100% of label	—	TRZ9015
11 Dec 2025	Ion Peptide	freedomdiagnosticstesting.com	99.88%	5.28 / 5 mg 106% of label	—	GP1S-12082025
8 Dec 2025	Ion Peptide	freedomdiagnosticstesting.com	99.77%	11.3 / 10 mg 113% of label	—	GPS10-120325
8 Dec 2025	OROS Research	freedomdiagnosticstesting.com	99.90%	13.99 / 10 mg 140% of label	—	877136
8 Dec 2025	OROS Research	freedomdiagnosticstesting.com	99.96%	12.53 / 10 mg 125% of label	—	817359
5 Dec 2025	Amino Forge	Janoshik Labs	99.78%	22.7 / 20 mg 114% of label	—	CS-se201128
3 Dec 2025	HPR	Janoshik Labs	99.81%	12.33 / 10 mg 123% of label	—	GP01113J
2 Dec 2025	Eternal Peptides	Janoshik Labs	99.19%	11.38 / 10 mg 114% of label	—	EP-250529-SG10
1 Dec 2025	Iron Peptides	freedomdiagnosticstesting.com	99.72%	31.92 / 30 mg 106% of label	—	View record →
1 Dec 2025	Iron Peptides	freedomdiagnosticstesting.com	99.85%	10.77 / 10 mg 108% of label	—	View record →
29 Nov 2025	Nela Peptides	freedomdiagnosticstesting.com	99.81%	10.38 / 10 mg 104% of label	—	2511250051
28 Nov 2025	Research Chem HQ	Vanguard Laboratory	99.24%	5.89 / 5 mg 118% of label	Pass	HCBN5
27 Nov 2025	Pura Peptides	freedomdiagnosticstesting.com	99.91%	26.68 / 20 mg 133% of label	—	2511120042
25 Nov 2025	Peptide Crafters	Janoshik Labs	99.46%	5.54 / 5 mg 111% of label	—	PC-G2-S5
23 Nov 2025	Ion Peptide	freedomdiagnosticstesting.com	99.67%	11.02 / 10 mg 110% of label	—	SMG10-1125
22 Nov 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.90%	17.33 / 15 mg 116% of label	—	11825-S15-D
22 Nov 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.78%	10.17 / 10 mg 102% of label	—	111825-S10-C
21 Nov 2025	Zen Aminos	freedomdiagnosticstesting.com	99.84%	10.57 / 10 mg 106% of label	—	ZASG01
21 Nov 2025	Royal Peptides	Janoshik Labs	99.74%	22.93 / 20 mg 115% of label	—	2025111120
20 Nov 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.82%	5.01 / 5 mg 100% of label	—	111525-S5-F
18 Nov 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.91%	5.52 / 5 mg 110% of label	—	111425-S5-I
13 Nov 2025	Peptide Koning	Janoshik Labs	99.90%	32.12 / 30 mg 107% of label	—	PK-RG-008
12 Nov 2025	Ion Peptide	freedomdiagnosticstesting.com	99.62%	11.15 / 10 mg 112% of label	—	SMG10-1125
12 Nov 2025	Ion Peptide	freedomdiagnosticstesting.com	99.86%	32.69 / 30 mg 109% of label	—	SMG30-1125
10 Nov 2025	Atomik Labz	Janoshik Labs	99.18%	5.18 / 5 mg 104% of label	—	61024G
10 Nov 2025	Atomik Labz	Janoshik Labs	99.31%	11.05 / 10 mg 111% of label	—	F1024F
7 Nov 2025	Glacier Aminos	freedomdiagnosticstesting.com	99.84%	17.54 / 15 mg 117% of label	—	SM15GA01
7 Nov 2025	Glacier Aminos	freedomdiagnosticstesting.com	99.87%	17.82 / 15 mg 119% of label	—	SM15GA01
7 Nov 2025	Mile High Compounds	Chromate	99.63%	10.48 / 10 mg 105% of label	Reported	GLP-110-MH-01
31 Oct 2025	Peptide Pros	freedomdiagnosticstesting.com	99.39%	11.53 / 11 mg 105% of label	—	TRZDB-110125
30 Oct 2025	Glacier Aminos	freedomdiagnosticstesting.com	99.53%	5.47 / 10 mg 55% of labelCheck label	—	RET10GA02
30 Oct 2025	Glacier Aminos	freedomdiagnosticstesting.com	99.64%	5.31 / 10 mg 53% of labelCheck label	—	RET10GA02
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.92%	33.25 / 30 mg 111% of label	—	LBL-0925-RT30-1084
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.89%	21.1 / 20 mg 106% of label	—	LBL-1025-RT20-1043
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.91%	10.76 / 10 mg 108% of label	—	LBL-1025-RT10-1027
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.89%	4.72 / 5 mg 94% of label	—	LBL-1025-RTS-1087
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.51%	9.42 / 10 mg 94% of label	—	LBL-0625-SM10-1042
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.90%	17.08 / 15 mg 114% of label	—	LBL-1025-SM15-1092
26 Oct 2025	Soma ChemsClosedBlendB12 1MG + GLP1 5MG	Chromate	98.63%	1.18 / 1 mg 118% of label	—	SOMA1N6ZHRKR
26 Oct 2025	Certified Peptides	freedomdiagnosticstesting.com	99.01%	10 / 10 mg 100% of label	—	2025-0230-C
23 Oct 2025	Instant Peptides	freedomdiagnosticstesting.com	99.91%	23.94 / 10 mg 239% of labelCheck label	—	2025-0286-A
21 Oct 2025	Oath Peptides	freedomdiagnosticstesting.com	99.86%	6 / 5 mg 120% of label	—	1HBE
21 Oct 2025	Oath Peptides	freedomdiagnosticstesting.com	99.90%	9.61 / 10 mg 96% of label	—	2HBE
21 Oct 2025	Skye Peptides	Janoshik Labs	99.41%	5.92 / 5 mg 118% of label	—	SM25-05-002
20 Oct 2025	Peptide Crafters	Janoshik Labs	99.21%	10.77 / 10 mg 108% of label	—	PC-G1-S10
18 Oct 2025	Orbitrex Peptides	Chromate	98.31%	11.26 / 10 mg 113% of label	Pass	1G10101425
16 Oct 2025	Blank Peptides	freedomdiagnosticstesting.com	99.83%	12.27 / 10 mg 123% of label	—	GS10-10142025-H
15 Oct 2025	Blank Peptides	freedomdiagnosticstesting.com	99.88%	12.33 / 10 mg 123% of label	—	SEM1010062025-08
14 Oct 2025	Skye Peptides	Janoshik Labs	99.42%	20.05 / 20 mg 100% of label	—	SM25-20-002
10 Oct 2025	Orbitrex Peptides	TrustPointe Analytics	99.86%	21.88 / 20 mg 109% of label	—	SM2010625
8 Oct 2025	HkRoids	freedomdiagnosticstesting.com	99.92%	23.01 / 20 mg 115% of label	—	2025.9.9.BGP
7 Oct 2025	Pure Health Peptides	BioRegen	99.84%	4.5 / 5 mg 90% of label	—	TUY-101025
3 Oct 2025	Profound Aminos	TrustPointe Analytics	99.19%	5.59 / 5 mg 112% of label	—	SPL-1924
2 Oct 2025	Peptide Crafters	Janoshik Labs	99.90%	23.14 / 20 mg 116% of label	—	PC-G1-S20
2 Oct 2025	Skye Peptides	Janoshik Labs	99.65%	11.48 / 10 mg 115% of label	—	SM25-10-002
1 Oct 2025	Research Chem HQ	Vanguard Laboratory	99.80%	33.42 / 30 mg 111% of label	Pass	TX8UB

Measured amount in amber when it is under 90% or over 130% of the label; Check label when it is under 80% or over 150%. Records without a lot number link as View →. Blend and other-form rows keep their place and page; they are tagged and left out of the figures above, because a blend certificate reports one purity and one amount for the whole vial. Blends with their own page: CagriSema lab tests (12)

Seven checks for any Semaglutide certificate

The same seven questions decide whether a certificate of analysis means anything, whichever compound it describes. Six are about the document; the seventh is about what no document can tell you.

An independent, batch-matched COA. The certificate must name the batch or lot in your hands, and must come from a laboratory the vendor neither owns nor pays. A specimen certificate from an earlier lot proves nothing about the vial you were sent.
HPLC purity, read against a known band. A purity figure is only informative against the distribution for that compound. "Above 98%" is not a claim — the useful question is whether the result sits inside the range the rest of the market reports. How to read HPLC and mass-spec results.
Mass-spectrometry identity. HPLC says how much of the sample is one thing; it does not say which thing. Only a mass-spec result establishes identity, and it is the only check that separates compounds a few daltons apart. Contamination is not hypothetical: research-grade custom peptides from two independent commercial suppliers were found to carry contaminating peptides at roughly 1% by weight, enough to produce false-positive results in immunology assays (Clinical and Vaccine Immunology, 2008 — a study of HIV vaccine peptide libraries rather than of any compound on this site).
Net content, measured rather than assumed. Purity and quantity are different questions: a vial can be 99.7% pure and still contain two thirds of the labelled mass. Why 10 mg isn't 10 mg.
Endotoxin (LAL) on the batch. An absent endotoxin line means the batch was not tested — not that it passed. Endotoxin testing and LAL interpretation.
Who ran the test, and what they left off. A laboratory with a record on this compound, named on the certificate, with a verification route back to it. Testing laboratories we track · Red flags in a certificate of analysis.
What no test on the vial can establish. A perfect certificate confirms that a vendor sold the correct molecule at the stated quantity. It says nothing about efficacy, dosing, or long-term safety.

Want a vial tested yourself? How to send a peptide for independent HPLC testing.

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What semaglutide testing has to rule out

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Seven checks for any Semaglutide certificate

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