SEMAX lab tests

314 certificates of analysis for SEMAX are on file — 305 for single vials and 9 for blends and other forms — from 194 shops and 23 labs. The latest was tested on 19 Oct 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

314

305 single vials · 9 blends & other forms

Median purity

99.53%

usual 98.98–99.89% · shop COAs

Measured vs label

108%

median · 11 under 90% · 59 over 120%

Latest test

19 Oct 2026

23 labs · 194 shops

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

What SEMAX results look like

single vials only · 303 purity results · 302 measured-content results

Purity is tightly bunched: the middle 80% of results sit within 0.9 points. Measured content spreads across 28 points of the label.

HPLC purity

98.98–99.89%middle 80% of results

median 99.53%90% at 99% or higher1 under 98%

% HPLC purity

Measured content vs label

98–126%middle 80% of results

median 108%11 under 90%59 over 120%

% of the labelled amount

outside the usual rangeEndotoxin reported on 67 of 305 (22%)Confirmed on the lab's own portal: 72 (24%)Most tested size: 10 mg (213), then 5 mg (39) and 30 mg (31)

Latest SEMAX tests

10 most recent · all formsAll 314 ↓

Latest SEMAX lab tests
Tested	Shop	Lab	Purity	Measured vs label	Endotoxin	Record
19 Oct 2026	Rogue Compounds	ILS Laboratories	99.90%	10.67 / 10 mg 107% of label	Pass	SXL-002✓
6 Oct 2026	SF Bay Area Peptides	freedomdiagnosticstesting.com	99.31%	12.28 / 10 mg 123% of label	—	10567✓
1 Oct 2026	Peptide Hackers	Accumark Labs	99.70%	9.83 / 10 mg 98% of label	—	AM20260925-12✓
23 Sep 2026	Backroad Aminos	freedomdiagnosticstesting.com	99.08%	10.93 / 10 mg 109% of label	Pass	0926XA10✓
8 Sep 2026	Purely Peptides	Bioviridian	99.78%	30.72 / 30 mg 102% of label	—	SMX-20260828-01✓
20 Aug 2026	Alchemy Gold ResearchSupplier-provided	freedomdiagnosticstesting.com	99.35%	10.94 / 10 mg 109% of label	Pass	00065 / 106✓
16 Aug 2026	Backroad Aminos	Kovera Labs	99.74%	11.69 / 10 mg 117% of label	Pass	08142026AD10✓
13 Aug 2026	Ramp Peptides	freedomdiagnosticstesting.com	99.32%	9.82 / 10 mg 98% of label	—	SX10-RP02✓
12 Aug 2026	High Tide Compounds	Kovera Labs	99.54%	13.79 / 10 mg 138% of label	Pass	XA10-002✓
11 Aug 2026	PeptuviaSupplier-provided	Janoshik Labs	98.81%	10.24 / 10 mg 102% of label	—	PSSEMX10-1✓

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 SEMAX tests

SEMAX single-vial results by testing lab
Lab	Tests	Median purity	Median measured vs label	Endotoxin reported	Confirmed on lab portal
freedomdiagnosticstesting.com	103	99.39%	116%	21	28
Janoshik Labs	65	99.56%	110%	0	10
Vanguard Laboratory	20	99.41%	103%	5	0
ILS Laboratories	16	99.74%	104%	8	13
Kovera Labs	15	99.77%	111%	12	13
Chromate	12	99.43%	109%	6	2
Bioviridian	10	99.80%	108%	3	3
Horizon Analytical	9	99.32%	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 SEMAX test on file is linked under More on SEMAX.

What the SEMAX record shows

SEMAX's record holds 314 certificates from 194 shops, tested by 23 labs between May 2024 and October 2026. 9 of them are blends or other forms and are left out of the figures below. Reported HPLC purity ran from 97.00% to 100.00% (median 99.53%). Measured content ran from 32% to 185% of the label (median 108%); 11 vials came in under 90%. 213 of the 305 vials were labelled 10 mg. 67 certificates include an endotoxin result, and 72 were confirmed on the lab's own portal. freedomdiagnosticstesting.com ran 107 of the 314 tests.

Generated from the table below · updates with every new certificate

All SEMAX tests

317 records · 3 supplier-provided, listed and left out of the benchmarks · page 1 of 2 · newest first · blends tagged

Records 1–300 of 317 · 3 supplier-provided, listed and left out of the benchmarks, most recent first.
Tested	Shop	Lab	Purity	Measured vs label	Endotoxin	Record
19 Oct 2026	Rogue Compounds	ILS Laboratories	99.90%	10.67 / 10 mg 107% of label	Pass	SXL-002✓
6 Oct 2026	SF Bay Area Peptides	freedomdiagnosticstesting.com	99.31%	12.28 / 10 mg 123% of label	—	10567✓
1 Oct 2026	Peptide Hackers	Accumark Labs	99.70%	9.83 / 10 mg 98% of label	—	AM20260925-12✓
23 Sep 2026	Backroad Aminos	freedomdiagnosticstesting.com	99.08%	10.93 / 10 mg 109% of label	Pass	0926XA10✓
8 Sep 2026	Purely Peptides	Bioviridian	99.78%	30.72 / 30 mg 102% of label	—	SMX-20260828-01✓
20 Aug 2026	Alchemy Gold ResearchSupplier-provided	freedomdiagnosticstesting.com	99.35%	10.94 / 10 mg 109% of label	Pass	00065 / 106✓
16 Aug 2026	Backroad Aminos	Kovera Labs	99.74%	11.69 / 10 mg 117% of label	Pass	08142026AD10✓
13 Aug 2026	Ramp Peptides	freedomdiagnosticstesting.com	99.32%	9.82 / 10 mg 98% of label	—	SX10-RP02✓
12 Aug 2026	High Tide Compounds	Kovera Labs	99.54%	13.79 / 10 mg 138% of label	Pass	XA10-002✓
11 Aug 2026	PeptuviaSupplier-provided	Janoshik Labs	98.81%	10.24 / 10 mg 102% of label	—	PSSEMX10-1✓
8 Aug 2026	Luv Aminos	freedomdiagnosticstesting.com	99.83%	4.37 / 5 mg 87% of label	—	SEMAX-5-001✓
4 Aug 2026	Biotech Compounds	Bioviridian	99.86%	11.24 / 10 mg 112% of label	—	202609-01-XA✓
1 Aug 2026	PeptideRUO	freedomdiagnosticstesting.com	99.29%	10.95 / 10 mg 110% of label	—	SX101125✓
31 Jul 2026	PeptuviaSupplier-provided	Janoshik Labs	98.80%	10.56 / 10 mg 106% of label	—	2026072910✓
19 Jul 2026	Peptide Foundry	ILS Laboratories	99.62%	10.25 / 10 mg 102% of label	Pass	FO889✓
18 Jul 2026	Phase One Labz	ILS Laboratories	98.83%	10.59 / 10 mg 106% of label	—	P1-SMX-26✓
16 Jul 2026	Aigil Research	ILS Laboratories	99.79%	10.34 / 10 mg 103% of label	—	AG-SK10✓
13 Jul 2026	Pure Amino	ILS Laboratories	99.71%	10.29 / 10 mg 103% of label	Reported	PA25070501✓
13 Jul 2026	Global Aminos	freedomdiagnosticstesting.com	99.63%	9.79 / 10 mg 98% of label	—	View record →
11 Jul 2026	TriVial BioWorks	Kovera Labs	99.72%	11.02 / 10 mg 110% of label	Pass	SX10-0705✓
11 Jul 2026	Janera Science	Vanguard Laboratory	99.24%	11.06 / 10 mg 111% of label	—	Semax-10-0626-02
9 Jul 2026	Biopeptitech	Accurate Test Lab	99.68%	57.42 / 50 mg 115% of label	—	BPTS629265EMAX
7 Jul 2026	Maple Research Labs	Testides	99.88%	9.79 / 10 mg 98% of label	—	5813✓
6 Jul 2026	My Amino Lab	Kovera Labs	99.74%	10.31 / 10 mg 103% of label	—	V2606-SX10-2401✓
6 Jul 2026	Modified Aminos	Ethos Analytics	99.00%	5.12 / 5 mg 102% of label	Pass	MA-SEMP-100
4 Jul 2026	Peptide Plugs	freedomdiagnosticstesting.com	99.79%	12.28 / 10 mg 123% of label	Pass	148-03-DK✓
3 Jul 2026	Backroad Aminos	Kovera Labs	99.58%	10.62 / 10 mg 106% of label	Pass	BA060926XA10✓
29 Jun 2026	Voltera Sciences Peptides	ILS Laboratories	99.90%	10.69 / 10 mg 107% of label	—	XA10-06152026✓
27 Jun 2026	Humatide Peptides	ILS Laboratories	99.65%	41.3 / 40 mg 103% of label	—	H40SEMX060126
25 Jun 2026	Blank Peptides	Horizon Analytical	99.34%	9.82 / 10 mg 98% of label	—	B-4383620-P
24 Jun 2026	Silverstone Labs Co	ILS Laboratories	99.87%	10.49 / 10 mg 105% of label	Pass	SAX-0726✓
24 Jun 2026	Molecular Solutions Peptides	freedomdiagnosticstesting.com	99.81%	34.98 / 30 mg 117% of label	Pass	R260616-SMX3-W001✓
22 Jun 2026	Ascend Peptides AU	Ozcanium Analytics	98.98%	9.9 / 10 mg 99% of label	—	16/06/2026
21 Jun 2026	Honest Peptide	freedomdiagnosticstesting.com	99.59%	12.23 / 10 mg 122% of label	—	SX1006152026✓
20 Jun 2026	High Tide Compounds	Kovera Labs	99.70%	11.56 / 10 mg 116% of label	Pass	XA10-001✓
20 Jun 2026	AminoVault	MDx BioAnalytical Laboratory	99.76%	10.98 / 10 mg 110% of label	Pass	XA10189✓
19 Jun 2026	Synova Supply	Horizon Analytical	99.34%	9.82 / 10 mg 98% of label	—	SS-4383620-P
18 Jun 2026	Optimum Formula	ILS Laboratories	99.71%	10.27 / 10 mg 103% of label	Pass	#HX2ZN✓
18 Jun 2026	Glow Aminos	ILS Laboratories	99.86%	53 / 50 mg 106% of label	—	GL-010154✓
18 Jun 2026	Research Chem HQ	ILS Laboratories	99.71%	10.27 / 10 mg 103% of label	Pass	#HX2ZN✓
17 Jun 2026	American Peptides	Bioviridian	99.90%	10.68 / 10 mg 107% of label	Pass	SEMX10-0528
15 Jun 2026	Regenorix Peptides	liquilabs	99.80%	12.36 / 10 mg 124% of label	Reported	RGXSEMAX10-2606-01
15 Jun 2026	Oasis Labs	Bioviridian	99.90%	10.13 / 10 mg 101% of label	—	112455✓
15 Jun 2026	Ascension Peptides	Kovera Labs	99.89%	11.23 / 10 mg 112% of label	Pass	30-05260628✓
11 Jun 2026	Pepme	liquilabs	99.70%	10.52 / 10 mg 105% of label	—	View record →
11 Jun 2026	Puratek Peptides	ILS Laboratories	99.84%	10.72 / 10 mg 107% of label	—	SEM10004✓
8 Jun 2026	Everest Peptides	freedomdiagnosticstesting.com	99.49%	11.89 / 10 mg 119% of label	—	EVR SEMAX10 2606 002
7 Jun 2026	BioGlow	freedomdiagnosticstesting.com	99.86%	11.44 / 10 mg 114% of label	—	BG-117✓
7 Jun 2026	Ramp Peptides	freedomdiagnosticstesting.com	99.67%	12.98 / 10 mg 130% of label	—	SX10-RP01✓
5 Jun 2026	PeptideTech	freedomdiagnosticstesting.com	99.58%	4.56 / 5 mg 91% of label	Pass	SEM5-2235✓
4 Jun 2026	Zen Aminos	freedomdiagnosticstesting.com	99.39%	11.41 / 10 mg 114% of label	—	ZAP-SMX-04
30 May 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.80%	13.2 / 10 mg 132% of label	—	MRSUN2566✓
29 May 2026	TriVial BioWorks	Kovera Labs	99.50%	11.17 / 10 mg 112% of label	Pass	NP10-0522✓
29 May 2026	EVO Labs Research	Kovera Labs	99.77%	5.66 / 5 mg 113% of label	—	EVO5213026
28 May 2026	Adria Science	liquilabs	99.60%	12.46 / 10 mg 125% of label	—	2025282
27 May 2026	Good Science	Vanguard Laboratory	99.14%	10.86 / 10 mg 109% of label	Pass	3548321
26 May 2026	Snap Peptides	Kovera Labs	99.88%	11.14 / 10 mg 111% of label	Pass	SP26-SEMAX10-01✓
26 May 2026	Crystal Peptides	Janoshik Labs	99.02%	9.58 / 10 mg 96% of label	—	Se1010CP✓
26 May 2026	Alpha Peptides	Analytical Formulations Inc	99.50%	12.33 / 10 mg 123% of label	—	SX-51826528
25 May 2026	Curo	BTLabs	99.60%	10.3 / 10 mg 103% of label	—	SEM10SR526
22 May 2026	Drakon Peptides	Janoshik Labs	99.16%	11.46 / 10 mg 115% of label	—	DRK-SEM-MAY26✓
20 May 2026	Zen Aminos	freedomdiagnosticstesting.com	99.91%	12.11 / 10 mg 121% of label	—	ZAP-SMX03
19 May 2026	Vistara Labs	Testides	99.78%	10.03 / 10 mg 100% of label	—	View record →
18 May 2026	Protide Health	freedomdiagnosticstesting.com	99.89%	12.74 / 10 mg 127% of label	Pass	PH-sem10-0128
17 May 2026	Rescue Research USA Peptides	freedomdiagnosticstesting.com	99.61%	12.79 / 10 mg 128% of label	—	View record →
14 May 2026	Valor Peptides	Accumark Labs	99.50%	14.33 / 10 mg 143% of label	—	ARC-SE10-001
13 May 2026	Precisely Peptides	Vanguard Laboratory	99.79%	10.05 / 10 mg 101% of label	—	PP412-26-001
12 May 2026	Elutide	Horizon Analytical	99.23%	9.69 / 10 mg 97% of label	—	E-3157061-P
11 May 2026	PeptidePro Canada	Janoshik Labs	99.63%	10.25 / 10 mg 102% of label	—	2511-2-249
11 May 2026	Peptify UK	Janoshik Labs	98.35%	10.63 / 10 mg 106% of label	—	2026/04
8 May 2026	Idun Peptides	freedomdiagnosticstesting.com	99.21%	12.53 / 10 mg 125% of label	—	SM10-260411✓
8 May 2026	Synthesis Peptides	freedomdiagnosticstesting.com	99.72%	12.08 / 10 mg 121% of label	—	View record →
6 May 2026	KOLD Peptides	Accumark Labs	99.57%	33.45 / 30 mg 112% of label	—	1220
6 May 2026	NG Peptide	ILS Laboratories	99.77%	10.39 / 10 mg 104% of label	—	SMX-09
5 May 2026	Vertex Labs	BTLabs	99.80%	10.1 / 10 mg 101% of label	—	SX0000038
25 Apr 2026	Oneday Compounds	ILS Laboratories	99.90%	10.49 / 10 mg 105% of label	—	OC-XA10-102✓
24 Apr 2026	Stratford Peptides	Analiza Białek	99.00%	10.26 / 10 mg 103% of label	—	100014069
23 Apr 2026	Xeno Peptides	BTLabs	99.60%	5.2 / 5 mg 104% of label	—	SX05-01
22 Apr 2026	Riptide Wellness	ILS Laboratories	98.95%	10.39 / 10 mg 104% of label	Pass	RWSEMAX-10-1002
22 Apr 2026	Arcane Peptides	Chromate	98.41%	4.64 / 5 mg 93% of label	Reported	SX002
22 Apr 2026	Peptide Plugs	freedomdiagnosticstesting.com	99.76%	10.87 / 10 mg 109% of label	—	122-A-5
21 Apr 2026	Saiyan Med	Janoshik Labs	99.50%	10.32 / 10 mg 103% of label	—	SYM-SX-B2604✓
19 Apr 2026	BulkGLP	freedomdiagnosticstesting.com	99.83%	12.42 / 10 mg 124% of label	—	04625
17 Apr 2026	Optimum Formula	Kovera Labs	99.93%	10.65 / 10 mg 107% of label	Pass	FCS8L✓
17 Apr 2026	Research Chem HQ	Kovera Labs	99.93%	10.65 / 10 mg 107% of label	Pass	FCS8L✓
15 Apr 2026	Oath Peptides	freedomdiagnosticstesting.com	99.79%	5.39 / 5 mg 108% of label	Pass	A1236
13 Apr 2026	LA Peptides	Bioviridian	99.80%	11.56 / 10 mg 116% of label	Pass	BATCH 1018
12 Apr 2026	Pure Health Peptides	Ethos Analytics	99.00%	10.15 / 10 mg 102% of label	—	TUY-030926
12 Apr 2026	Pure Health Peptides	Ethos Analytics	99.00%	5.06 / 5 mg 101% of label	—	TUY-030926
11 Apr 2026	Plum Labs Research	Kovera Labs	99.95%	10.71 / 10 mg 107% of label	Pass	PLY-SX-101✓
11 Apr 2026	Bluum Peptides	freedomdiagnosticstesting.com	99.17%	12.03 / 10 mg 120% of label	—	190624
11 Apr 2026	NeuroLabs	freedomdiagnosticstesting.com	99.13%	12.04 / 10 mg 120% of label	—	2604090011
10 Apr 2026	Umbrella Labs	Vanguard Laboratory	99.06%	25.2 / 30 mg 84% of label	Pass	ULP-45907
10 Apr 2026	24Peptides	liquilabs	99.80%	13.47 / 10 mg 135% of label	Pass	GF-SEM10-B241
10 Apr 2026	Elutide	Horizon Analytical	99.35%	10.18 / 10 mg 102% of label	—	E-8837484-P
10 Apr 2026	Glowing Peptides	Janoshik Labs	99.29%	9.77 / 10 mg 98% of label	—	C118
10 Apr 2026	Prime Peptides	Janoshik Labs	99.63%	11.02 / 10 mg 110% of label	—	3222026SX
9 Apr 2026	Peppy&Me	Krause Analytical	99.10%	10.8 / 10 mg 108% of label	—	PMSX102603A
9 Apr 2026	Peak Peptides Rancho Cucamonga	Analytical Formulations Inc	99.80%	11.32 / 10 mg 113% of label	—	SMX-10-0426
9 Apr 2026	Vylix Research	freedomdiagnosticstesting.com	99.14%	6.51 / 5 mg 130% of label	—	View record →
7 Apr 2026	Amino USA	freedomdiagnosticstesting.com	99.34%	34.91 / 30 mg 116% of label	—	26SMX30-0005
4 Apr 2026	Glow Aminos	ILS Laboratories	99.42%	10.44 / 10 mg 104% of label	Pass	GL-010093✓
3 Apr 2026	American Peptides	Bioviridian	99.80%	11.26 / 10 mg 113% of label	Pass	SEMX10-0318
3 Apr 2026	Molecular Solutions Peptides	freedomdiagnosticstesting.com	99.03%	35.93 / 30 mg 120% of label	Pass	R260330-SMX30-W001✓
2 Apr 2026	Crush Research	BTLabs	99.80%	9.4 / 10 mg 94% of label	—	CR-SMX10-2603-1
31 Mar 2026	Peptide Partners	Kovera Labs	99.92%	19.86 / 20 mg 99% of label	Pass	SX202603
27 Mar 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.37%	6.38 / 5 mg 128% of label	—	View record →
27 Mar 2026	NovaCell Peptides	liquilabs	99.80%	12.15 / 10 mg 122% of label	—	SX-022601
27 Mar 2026	Limitless Biotech	MZ Biolabs	99.88%	19.95 / 20 mg 100% of label	—	1314
26 Mar 2026	Oneday Compounds	Vanguard Laboratory	99.02%	10.68 / 10 mg 107% of label	—	OC-XA10-101
25 Mar 2026	Nura Peptide	freedomdiagnosticstesting.com	99.03%	11.32 / 10 mg 113% of label	—	SEM102825J✓
24 Mar 2026	PurgoLabs Peptides	freedomdiagnosticstesting.com	99.67%	11.63 / 10 mg 116% of label	—	PS03-SX02-B✓
24 Mar 2026	Midshire Labs (formerly Regen Peptides)	Janoshik Labs	98.91%	12.87 / 10 mg 129% of label	—	SX10-0311
23 Mar 2026	Nexaph	Janoshik Labs	99.96%	11.28 / 10 mg 113% of label	—	SEMX1003072026-09
22 Mar 2026	Modified Aminos	Ethos Analytics	—	5.27 / 5 mg 105% of label	Pass	MA-SEMS-101
22 Mar 2026	Modified Aminos	Ethos Analytics	—	41.39 / 40 mg 103% of label	Pass	MA-SEMS-400
20 Mar 2026	Red Dirt (RDR) Peptides	freedomdiagnosticstesting.com	99.38%	12 / 10 mg 120% of label	Pass	SX102603✓
20 Mar 2026	Oath Peptides	freedomdiagnosticstesting.com	99.28%	3.71 / 5 mg 74% of labelCheck label	—	B10526
20 Mar 2026	Oath Peptides	freedomdiagnosticstesting.com	99.27%	11.36 / 10 mg 114% of label	—	B10526
19 Mar 2026	Enhanced Peptides	Vanguard Laboratory	99.72%	10.25 / 10 mg 102% of label	—	SL-26A-35
18 Mar 2026	Sunrise Bioresearch	freedomdiagnosticstesting.com	99.23%	11.67 / 10 mg 117% of label	Pass	SMX10226-1✓
18 Mar 2026	Studz Peptides	Kovera Labs	99.97%	11.58 / 10 mg 116% of label	—	SMX10-03052026-LIS✓
16 Mar 2026	Ion PeptideBlendSemax/Selank	Analytical Formulations Inc	99.20%	21.18 / 20 mg 106% of label	—	SSB20-03102026
15 Mar 2026	EZ Peps	freedomdiagnosticstesting.com	99.41%	13.57 / 10 mg 136% of label	—	26-U1-RRT/SX100125✓
14 Mar 2026	Glow Aminos	freedomdiagnosticstesting.com	99.71%	11.89 / 10 mg 119% of label	Pass	GL-010055✓
14 Mar 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.31%	12.85 / 10 mg 129% of label	—	LBL-1025-XA10-1103
12 Mar 2026	Primal Peptides	Janoshik Labs	99.47%	31.42 / 30 mg 105% of label	—	View record →
10 Mar 2026	Offline Peptides	freedomdiagnosticstesting.com	99.12%	11.75 / 10 mg 118% of label	—	OP-XA10-0326✓
9 Mar 2026	PeptidologyBlendSemax/Selank	Vanguard Laboratory	99.08%	53.8 / 54 mg 100% of label	—	1671
6 Mar 2026	True Research Labs	Horizon Analytical	99.30%	10.23 / 10 mg 102% of label	—	TRL-6944289
6 Mar 2026	Panda Peptides	Janoshik Labs	99.24%	5.37 / 5 mg 107% of label	—	View record →
6 Mar 2026	Chameleon PeptidesClosed	Janoshik Labs	99.24%	5.37 / 5 mg 107% of label	—	View record →
6 Mar 2026	Tydes	Janoshik Labs	99.66%	31.69 / 30 mg 106% of label	—	SMX30022026
6 Mar 2026	Modern Aminos	freedomdiagnosticstesting.com	99.59%	10.08 / 10 mg 101% of label	Pass	BX-P-J1Q6
6 Mar 2026	Direct Peptides	Horizon Analytical	99.30%	10.23 / 10 mg 102% of label	—	DPS-6944289
5 Mar 2026	Skye Peptides	Janoshik Labs	99.57%	32.44 / 30 mg 108% of label	—	SMX26-30-001
3 Mar 2026	Double R Labs	Chromate	99.19%	11.73 / 10 mg 117% of label	Reported	DRLZ4A4G484Z✓
3 Mar 2026	Peptide Koning	Axiom Analytics	99.69%	11.21 / 10 mg 112% of label	Pass	PK-RG-009
2 Mar 2026	BioCollex Research	freedomdiagnosticstesting.com	99.85%	12.82 / 40 mg 32% of labelCheck label	—	04920✓
28 Feb 2026	OROS Research	freedomdiagnosticstesting.com	99.60%	29.12 / 30 mg 97% of label	Pass	1625200
27 Feb 2026	Umbrella Labs	Vanguard Laboratory	99.08%	4.89 / 5 mg 98% of label	—	ULP-45906
27 Feb 2026	AminoQuest Labs	freedomdiagnosticstesting.com	99.95%	9.25 / 5 mg 185% of labelCheck label	—	AQ-XA5-226-M
27 Feb 2026	Oath Peptides	freedomdiagnosticstesting.com	99.08%	3.54 / 5 mg 71% of labelCheck label	—	B10526
26 Feb 2026	Cosmic Peptides	Bioviridian	99.60%	11.06 / 10 mg 111% of label	—	26098
26 Feb 2026	PeptidologyBlendSemax/Selank	Vanguard Laboratory	99.80%	19.51 / 20 mg 98% of label	—	1670
24 Feb 2026	Elevated Peptides	MZ Biolabs	99.81%	not reported	—	2026-02-09
22 Feb 2026	Glow Aminos	Ethos Analytics	98.00%	52.17 / 50 mg 104% of label	Pass	GL-010018
21 Feb 2026	Prosperity Peptides	freedomdiagnosticstesting.com	99.87%	12.4 / 10 mg 124% of label	—	SEM10-001
20 Feb 2026	Next Gen Compounds	Janoshik Labs	99.56%	5.18 / 5 mg 104% of label	—	SMX-05-001-0102
18 Feb 2026	Rivn Peptides	freedomdiagnosticstesting.com	99.57%	12.36 / 10 mg 124% of label	—	3774
17 Feb 2026	TriVial BioWorks	Chromate	99.37%	11.22 / 10 mg 112% of label	Pass	SX10-0213✓
17 Feb 2026	Peptide Maxxing	Janoshik Labs	99.20%	11.24 / 10 mg 112% of label	—	SEM483✓
17 Feb 2026	XL Peptides	Janoshik Labs	99.04%	10.63 / 10 mg 106% of label	—	250SMX
16 Feb 2026	Grey Market Peptide	freedomdiagnosticstesting.com	99.95%	4.78 / 5 mg 96% of label	—	View record →
16 Feb 2026	Soma ChemsClosed	freedomdiagnosticstesting.com	99.95%	4.78 / 4 mg 120% of label	—	Soma2602130229
14 Feb 2026	Midwest Peptide	freedomdiagnosticstesting.com	99.95%	11.01 / 11 mg 100% of label	—	MPSX001
13 Feb 2026	Omega Peptides	Janoshik Labs	99.33%	11.3 / 10 mg 113% of label	—	SEMAX10-2602
13 Feb 2026	New Wave Peptides	Janoshik Labs	99.52%	12.25 / 10 mg 123% of label	—	19500/A
11 Feb 2026	Valor Peptides	Accumark Labs	99.62%	11.73 / 10 mg 117% of label	—	SX0002
10 Feb 2026	Imperial Peptides UK	Janoshik Labs	99.75%	5.52 / 5 mg 110% of label	—	MAX5-11/27✓
10 Feb 2026	Mile High Compounds	Vanguard Laboratory	99.60%	12.1 / 10 mg 121% of label	—	SMX-010-MH-04
10 Feb 2026	Peptide Supply Co	freedomdiagnosticstesting.com	99.10%	12.38 / 10 mg 124% of label	—	PSCCSMX10001
10 Feb 2026	Amino USA	BioRegen	99.52%	32.79 / 30 mg 109% of label	—	26NASX30-0002
10 Feb 2026	Mile High Compounds	Vanguard Laboratory	99.50%	12.1 / 10 mg 121% of label	—	SMX-010-MH-04
9 Feb 2026	Ascension Peptides	MZ Biolabs	99.75%	10.12 / 10 mg 101% of label	—	30-01260229
7 Feb 2026	Atomik Labz	BioRegen	99.80%	31.13 / 30 mg 104% of label	Pass	SMX0212026
6 Feb 2026	Peptidology	Vanguard Laboratory	99.80%	12.38 / 10 mg 124% of label	—	1669
5 Feb 2026	Growth Guys	Janoshik Labs	98.95%	13.3 / 10 mg 133% of label	—	SEM03
3 Feb 2026	PurgoLabs Peptides	freedomdiagnosticstesting.com	98.79%	not reported	—	PL001✓
3 Feb 2026	Instant Peptides	freedomdiagnosticstesting.com	99.94%	13.27 / 10 mg 133% of label	Pass	2026-0286-A
2 Feb 2026	Purity Peptides	MDx BioAnalytical Laboratory	99.78%	10.21 / 10 mg 102% of label	Pass	View record →
1 Feb 2026	Modern Research Peptides	freedomdiagnosticstesting.com	99.86%	13.35 / 11 mg 121% of label	—	BCXMITEMHK26✓
1 Feb 2026	Thrive Peptides	freedomdiagnosticstesting.com	99.57%	9.7 / 10 mg 97% of label	—	TP-01-SX
1 Feb 2026	Loti Labs	SR Bio Labs	99.89%	5.84 / 5 mg 117% of label	—	LOT-SEMX-00005
28 Jan 2026	Pure Health Peptides	Bioviridian	99.80%	10.82 / 10 mg 108% of label	—	TUY-011526
27 Jan 2026	Liberty Peptides	Bioviridian	99.15%	31.38 / 30 mg 105% of label	—	LPUS1002
26 Jan 2026	National Science Labs	freedomdiagnosticstesting.com	99.38%	not reported	—	View record →
26 Jan 2026	Nova Peptide Supply	freedomdiagnosticstesting.com	98.93%	11.92 / 10 mg 119% of label	Pass	View record →
24 Jan 2026	Oath Peptides	freedomdiagnosticstesting.com	98.87%	11.26 / 10 mg 113% of label	—	27ABF
23 Jan 2026	PeakForm Peptides	freedomdiagnosticstesting.com	98.52%	11.39 / 10 mg 114% of label	—	PF-2026-009
21 Jan 2026	Penguin Peptides	Janoshik Labs	99.33%	10.5 / 10 mg 105% of label	—	View record →
21 Jan 2026	Penguin Peptides	Janoshik Labs	99.47%	5.78 / 5 mg 116% of label	—	View record →
21 Jan 2026	Ion PeptideBlendSemax/Selank	freedomdiagnosticstesting.com	98.74%	10.06 / 10 mg 101% of label	—	SXSK10-011626
21 Jan 2026	NG Peptide	freedomdiagnosticstesting.com	99.70%	10.22 / 10.23 mg 100% of label	—	SMX07
19 Jan 2026	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.11%	6.92 / 5 mg 138% of label	—	LBL-0625-XA5-1054
18 Jan 2026	NUPEPS Peptides	BTLabs	99.80%	12.6 / 10 mg 126% of label	—	CS-sa101018
14 Jan 2026	ThreeSide Peptides	Krause Analytical	99.95%	14.9 / 10 mg 149% of label	—	SX102512
13 Jan 2026	Nova Peptide Supply	freedomdiagnosticstesting.com	98.73%	9.62 / 10 mg 96% of label	Pass	View record →
12 Jan 2026	Peptide Hubs	Janoshik Labs	99.59%	11.27 / 10 mg 113% of label	—	GASEMA12✓
12 Jan 2026	Felix Chemical Supply	freedomdiagnosticstesting.com	99.17%	9.55 / 10 mg 96% of label	—	010726-SMX-7
9 Jan 2026	Signum Scientific	Horizon Analytical	99.32%	10.12 / 10 mg 101% of label	—	SEM-10-02
9 Jan 2026	Cosmic Peptides	Bioviridian	99.80%	9.87 / 10 mg 99% of label	—	25053
9 Jan 2026	Synthesis Peptides	freedomdiagnosticstesting.com	99.42%	11.58 / 10 mg 116% of label	—	View record →
9 Jan 2026	Amino Forge	Horizon Analytical	99.32%	10.18 / 10 mg 102% of label	—	AF-7709184
9 Jan 2026	Astra Peptides	Horizon Analytical	98.32%	10.12 / 10 mg 101% of label	—	ASTR-21183
9 Jan 2026	Paramount Peptides	Janoshik Labs	99.14%	26.22 / 30 mg 87% of label	—	SMX30A122925
8 Jan 2026	GenPeptide	freedomdiagnosticstesting.com	99.10%	11.64 / 10 mg 116% of label	—	GPSMX10122825✓
8 Jan 2026	Elite Research USA	freedomdiagnosticstesting.com	99.40%	12.38 / 10 mg 124% of label	—	72115AN1225
8 Jan 2026	Injectify	Janoshik Labs	99.34%	5.17 / 5 mg 103% of label	—	PE2401-672
7 Jan 2026	Pryma Lab	Janoshik Labs	99.39%	12.09 / 11 mg 110% of label	—	001✓
6 Jan 2026	Primal Peptides	Janoshik Labs	99.71%	10.71 / 10 mg 107% of label	—	View record →
3 Jan 2026	Perfect Peptides	Krause Analytical	99.48%	8.81 / 10 mg 88% of label	—	PP2628233
23 Dec 2025	Peptira	freedomdiagnosticstesting.com	99.30%	10.57 / 10 mg 106% of label	Pass	SMAX10-006
20 Dec 2025	NuScience Peptides	freedomdiagnosticstesting.com	99.07%	11.62 / 10 mg 116% of label	—	00080
19 Dec 2025	Peptide Crafters	Janoshik Labs	99.16%	10.58 / 10 mg 106% of label	—	PC-G1-SMX
19 Dec 2025	Modern Aminos	freedomdiagnosticstesting.com	99.19%	9.61 / 10 mg 96% of label	Pass	BX-P-T1D8
18 Dec 2025	Certified Peptides	Vanguard Laboratory	99.16%	10.12 / 10 mg 101% of label	Pass	251117SX103
18 Dec 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.14%	9.65 / 10 mg 97% of label	—	121525-SEM-7
16 Dec 2025	Beyond Peptides	Janoshik Labs	99.59%	11.48 / 10 mg 115% of label	—	002
11 Dec 2025	Growth Guys	Janoshik Labs	99.60%	11.64 / 10 mg 116% of label	—	SEM02
8 Dec 2025	Ion Peptide	freedomdiagnosticstesting.com	99.44%	12.88 / 10 mg 129% of label	—	SX10-12125
5 Dec 2025	Petratide Science	freedomdiagnosticstesting.com	99.63%	9.21 / 10 mg 92% of label	—	PS11-XA10
5 Dec 2025	Beyond Peptides	Janoshik Labs	99.37%	5.64 / 10 mg 56% of labelCheck label	—	001
2 Dec 2025	Proforma Peptides	Analiza Białek	99.00%	4.94 / 5 mg 99% of label	—	2567
29 Nov 2025	Mile High Compounds	Chromate	99.25%	9.7 / 10 mg 97% of label	Pass	SMX-010-MH-03
28 Nov 2025	Research Peptides Europe	liquilabs	99.79%	5.62 / 5 mg 112% of label	Pass	SEMAX/2025-11-20
27 Nov 2025	Alpha Peptides	freedomdiagnosticstesting.com	98.56%	12.72 / 10 mg 127% of label	—	SX-11182527
25 Nov 2025	Synthesis Peptides	freedomdiagnosticstesting.com	98.41%	30.99 / 30 mg 103% of label	—	View record →
25 Nov 2025	EVO Labs Research	Janoshik Labs	99.43%	10.47 / 10 mg 105% of label	—	201125
23 Nov 2025	Ion PeptideBlendSemax/Selank	freedomdiagnosticstesting.com	98.96%	9.77 / 10 mg 98% of label	—	SSK1-1125
22 Nov 2025	Nova Peptide Supply	freedomdiagnosticstesting.com	99.50%	11.27 / 10 mg 113% of label	Pass	NV-P-2MNC
16 Nov 2025	LA Peptides	freedomdiagnosticstesting.com	99.02%	11.4 / 10 mg 114% of label	—	318✓
16 Nov 2025	Ion Peptide	freedomdiagnosticstesting.com	98.91%	10.31 / 10 mg 103% of label	—	SX10-1125
15 Nov 2025	Protide Health	freedomdiagnosticstesting.com	98.79%	13.54 / 10 mg 135% of label	—	View record →
15 Nov 2025	Glacier Aminos	freedomdiagnosticstesting.com	98.71%	11.62 / 10 mg 116% of label	—	SMXGA01
15 Nov 2025	Glacier Aminos	freedomdiagnosticstesting.com	98.76%	12.13 / 10 mg 121% of label	—	SMXGA01
11 Nov 2025	Disguised Alpha	Chromate	99.11%	13.36 / 10 mg 134% of label	—	View record →
11 Nov 2025	Amino USA	BioRegen	99.88%	29.18 / 30 mg 97% of label	—	25SMX30-0004
10 Nov 2025	Atomik Labz	Janoshik Labs	99.31%	12.2 / 10 mg 122% of label	—	M1024M
9 Nov 2025	Ion PeptideBlendSemax/Selank	freedomdiagnosticstesting.com	99.43%	9.07 / 5.5 mg 165% of labelCheck label	—	SSB-1129
9 Nov 2025	Peptira	freedomdiagnosticstesting.com	99.24%	11.58 / 10 mg 116% of label	Pass	SMAX10-006
9 Nov 2025	Peptira	freedomdiagnosticstesting.com	99.24%	11.55 / 10 mg 116% of label	Pass	SMAX10-005
7 Nov 2025	Nela Peptides	freedomdiagnosticstesting.com	98.60%	11.43 / 11 mg 104% of label	—	2511050064
5 Nov 2025	HkRoids	freedomdiagnosticstesting.com	99.13%	12.62 / 10 mg 126% of label	—	05672
2 Nov 2025	Peptide Pros	freedomdiagnosticstesting.com	99.14%	33.27 / 30 mg 111% of label	—	SEMAX-110125
30 Oct 2025	Kimera Chems	Vanguard Laboratory	99.25%	5.63 / 5 mg 113% of label	—	View record →
30 Oct 2025	Skye Peptides	Janoshik Labs	99.02%	31.61 / 30 mg 105% of label	—	SMX25-30-003
29 Oct 2025	Ion Peptide	freedomdiagnosticstesting.com	99.72%	9.47 / 10 mg 95% of label	—	SMX10-1025
28 Oct 2025	Zen Aminos	freedomdiagnosticstesting.com	99.89%	9.93 / 10 mg 99% of label	—	ZANX002
28 Oct 2025	Zen Aminos	freedomdiagnosticstesting.com	99.88%	9.85 / 10 mg 99% of label	—	ZANAS01
28 Oct 2025	Luvion Bio Peptides	freedomdiagnosticstesting.com	99.48%	12.28 / 10 mg 123% of label	—	LBL-0625-NXA10-1068
27 Oct 2025	RUO.bio	Chromate	99.85%	5.45 / 5 mg 109% of label	—	View record →
27 Oct 2025	Peak Peptides	Janoshik Labs	99.53%	11.85 / 10 mg 119% of label	—	CS-sa101018
24 Oct 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	98.84%	13.84 / 10 mg 138% of label	—	102125-SMX-9
23 Oct 2025	Iron Peptides	freedomdiagnosticstesting.com	99.41%	11.87 / 10 mg 119% of label	—	2510230083
23 Oct 2025	Instant Peptides	freedomdiagnosticstesting.com	99.53%	11.63 / 10 mg 116% of label	—	2025-0288-A
22 Oct 2025	Real Peptides	freedomdiagnosticstesting.com	99.66%	11.39 / 10 mg 114% of label	—	2510200148
21 Oct 2025	Kimera Chems	freedomdiagnosticstesting.com	99.09%	6.76 / 5 mg 135% of label	—	View record →
21 Oct 2025	Pure Health Peptides	BioRegen	99.92%	8.9 / 10 mg 89% of label	—	TUY-101025
21 Oct 2025	Pure Health Peptides	BioRegen	99.89%	5.4 / 5 mg 108% of label	—	TUY-101025
21 Oct 2025	Peptidology	Vanguard Laboratory	99.39%	10.23 / 10 mg 102% of label	—	1665
18 Oct 2025	Valor Peptides	Vanguard Laboratory	99.42%	11.14 / 10 mg 111% of label	Pass	SX0001
18 Oct 2025	Amplified Labs	freedomdiagnosticstesting.com	98.91%	12.99 / 10 mg 130% of label	—	SMX-B105R09
16 Oct 2025	Particle Peptides	liquilabs	99.80%	9.77 / 10 mg 98% of label	Pass	2025282
14 Oct 2025	Research Chem HQ	Vanguard Laboratory	99.80%	9.92 / 10 mg 99% of label	Pass	TD31C
14 Oct 2025	Ion Peptide	freedomdiagnosticstesting.com	99.32%	11.08 / 10 mg 111% of label	—	SX10-1025
13 Oct 2025	Proforma Peptides	Analiza Białek	99.00%	5.17 / 5 mg 103% of label	—	2567
10 Oct 2025	RC Peptides	Janoshik Labs	99.21%	9.66 / 10 mg 97% of label	—	004
10 Oct 2025	Peptira	freedomdiagnosticstesting.com	99.41%	11.97 / 10 mg 120% of label	Pass	SMAX10-004
10 Oct 2025	Soma ChemsClosed	Chromate	99.89%	5.49 / 5 mg 110% of label	—	SOMA14452CQZ
8 Oct 2025	Felix Chemical Supply	freedomdiagnosticstesting.com	99.41%	14.25 / 10 mg 143% of label	—	100225-SMX-9
7 Oct 2025	Kensington Labs	Janoshik Labs	99.20%	5.87 / 5 mg 117% of label	—	SMX-471BR
3 Oct 2025	Mile High Compounds	Chromate	99.59%	9.76 / 10 mg 98% of label	Pass	SMX-010-MH-02
3 Oct 2025	NG Peptide	BioRegen	99.92%	8.94 / 10 mg 89% of label	—	2M26
2 Oct 2025	Neovia Peptides	Janoshik Labs	99.63%	12.48 / 11 mg 113% of label	—	LYXA112025916
2 Oct 2025	Limitless BiotechBlendN-Acetyl Semax Amidatе/N-Acetyl Selank Amidatе	MZ Biolabs	99.56%	59.56 / 60 mg 99% of label	—	US116181 (#2)
16 Sep 2025	Peptide Hackers	Janoshik Labs	99.34%	11.5 / 10 mg 115% of label	—	View record →
16 Sep 2025	Evolve Biopep	Vanguard Laboratory	99.50%	42.81 / 46 mg 93% of label	—	View record →
15 Sep 2025	Power Peptides	Chromate	99.92%	29.46 / 30 mg 98% of label	Reported	010725-HO-SX-30
12 Sep 2025	Synthesis PeptidesBlendSEMAX/Glycine	freedomdiagnosticstesting.com	99.78%	10.4 / 10 mg 104% of label	—	View record →
12 Sep 2025	Peptira	freedomdiagnosticstesting.com	99.61%	9.12 / 10 mg 91% of label	—	SMAX10-003
8 Sep 2025	Limitless Biotech	Janoshik Labs	99.96%	30 / 30 mg 100% of label	—	1317
8 Sep 2025	Limitless Biotech	Janoshik Labs	99.97%	29.99 / 30 mg 100% of label	—	1317
8 Sep 2025	Limitless Biotech	Janoshik Labs	99.97%	29.99 / 30 mg 100% of label	—	1317
8 Sep 2025	Limitless Biotech	Janoshik Labs	99.97%	30 / 30 mg 100% of label	—	1317
4 Sep 2025	HkRoids	freedomdiagnosticstesting.com	99.40%	10.76 / 10 mg 108% of label	—	HMX10825
3 Sep 2025	Tydes	Janoshik Labs	99.88%	32.91 / 30 mg 110% of label	—	NASMX30082825
3 Sep 2025	Skye Peptides	Janoshik Labs	99.89%	31.62 / 30 mg 105% of label	—	NASMX25-30-001
2 Sep 2025	EZ Peps	Janoshik Labs	99.57%	11.98 / 10 mg 120% of label	—	SX100825✓
29 Aug 2025	BioLongevity Labs	MDx BioAnalytical Laboratory	98.80%	20.24 / 20 mg 101% of label	—	View record →
28 Aug 2025	Bulk Peptide Supply	MDx BioAnalytical Laboratory	98.86%	10.04 / 10 mg 100% of label	—	QC251064
28 Aug 2025	HPR	Janoshik Labs	99.99%	10.09 / 10 mg 101% of label	—	SMX820J
27 Aug 2025	Oath Peptides	freedomdiagnosticstesting.com	99.12%	5.13 / 5 mg 103% of label	—	26HBE
27 Aug 2025	Skye Peptides	Janoshik Labs	99.37%	36.29 / 30 mg 121% of label	—	SMX25-30-002
20 Aug 2025	Felix Chemical Supply	Chromate	98.53%	11.14 / 10 mg 111% of label	—	81825-SMX-9
15 Aug 2025	Amino Lair	freedomdiagnosticstesting.com	99.03%	10.6 / 10 mg 106% of label	—	2508140040
30 Jul 2025	Felix Chemical Supply	Chromate	99.48%	9.99 / 10 mg 100% of label	—	072625-SMX-9
29 Jul 2025	Peptidology	Vanguard Laboratory	99.49%	10.26 / 10 mg 103% of label	—	01-076-PD-1358
25 Jul 2025	Mile High Compounds	Janoshik Labs	99.59%	11.85 / 10 mg 119% of label	—	001
19 Jul 2025	Power PeptidesBlendNA-Semax + NA-Selank	Chromate	98.90%	60.09 / 60 mg 100% of label	Reported	010625-ML-SKSX-30
16 Jul 2025	Peptira	Janoshik Labs	99.73%	11.44 / 10 mg 114% of label	—	SEMAX10-001
8 Jul 2025	Limitless Biotech	MZ Biolabs	98.98%	30 / 30 mg 100% of label	—	1276 (vial 2)
30 Jun 2025	Eternal Peptides	Janoshik Labs	99.52%	13.15 / 10 mg 132% of label	—	EP-250428-SX10
25 Jun 2025	Royal Peptides	Janoshik Labs	99.78%	12.12 / 10 mg 121% of label	—	sx100614
23 Jun 2025	Growth Guys	Janoshik Labs	99.81%	11.74 / 11.59 mg 101% of label	—	SEM01
19 Jun 2025	Ignite Peptides	Janoshik Labs	99.66%	13.12 / 10 mg 131% of label	—	SEMX-0606-105✓
13 Jun 2025	Felix Chemical Supply	Chromate	99.61%	11.96 / 10 mg 120% of label	—	060525-SEM-1
2 Jun 2025	Limitless Biotech	MZ Biolabs	98.66%	20 / 20 mg 100% of label	—	H1798 (US vial 2)
28 May 2025	Zen Aminos	freedomdiagnosticstesting.com	99.51%	11.79 / 10 mg 118% of label	—	ZANX001
24 May 2025	Limitless Biotech	MZ Biolabs	98.66%	20 / 20 mg 100% of label	—	117981 (US vial 2)

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: Brain Blend lab tests (17)

Seven checks for any SEMAX certificate

Batch-matched and independent. The certificate names the lot in your hands and comes from a lab the vendor neither owns nor pays.
Purity against the range. Read the figure against what other certificates for this compound report. How to read HPLC and mass-spec results
Mass-spec identity. Only mass spectrometry shows which molecule is in the vial.
Net content, measured. Purity and quantity are separate questions. Why 10 mg isn't 10 mg
Endotoxin on the batch. A missing line means not tested, not passed. Endotoxin testing and LAL interpretation
A lab you can check. Named on the certificate, with a way to verify it. Testing labs we track · Red flags in a certificate of analysis
What no test shows. A clean certificate says nothing about efficacy, dosing or long-term safety.

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