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All peptides · Epithalon · COAs

Epithalon COA & lab test results

78 certificates of analysis published by 63 vendors, newest first.

43with readable numbers
99.54%median purity
106%median measured vs label
16testing labs

Labs: Accumark Labs, BTLabs, BioRegen, Bioviridian, Chromate, Ethos Analytics, Freedom Diagnostics, ILS Laboratories, Janoshik, Kovera Labs, MDx BioAnalytical Laboratory, MZ Biolabs, NST (SNTEK), Qorix Labs (Tianjin), Vanguard Laboratory, hydroresearchpeptides.com.

VendorLabDateLabelMeasuredPurity
Go Alpha Labs PeptidesFreedom Diagnostics2026-10-0250 mg56.32 mg (113%)99.95%View
NextGen HealthILS Laboratories2026-09-2350 mg50.94 mg (102%)99.17%View
NextGen HealthILS Laboratories2026-09-2350 mg52.03 mg (104%)–View
CertaPeptidesJanoshik2026-09-1850 mg49.02 mg (98%)99.514%View
Domestic PepsFreedom Diagnostics2026-09-1610 mg10.46 mg (105%)99.38%View
Pure Peptide LabsKovera Labs2026-09-1410 mg11.62 mg (116%)99.719%View
PeptagonAccumark Labs2026-09-1050 mg45.181 mg (90%)99.395%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-1010 mg–99.82%View
Elite Research USAFreedom Diagnostics2026-09-0910 mg11.3 mg (113%)99.31%View
Skye PeptidesAccumark Labs2026-09-0950 mg56.458 mg (113%)99.893%View
Crush ResearchILS Laboratories2026-09-0650 mg52.87 mg (106%)99.65%View
Ion PeptideFreedom Diagnostics2026-09-0550 mg53.98 mg (108%)99.66%View
SPBFreedom Diagnostics2026-09-0310 mg11.18 mg (112%)99.85%View
NuLife PeptidesFreedom Diagnostics2026-09-0150 mg50.77 mg (102%)99.55%View
Pharma Grade PeptidesJanoshik2026-08-2750 mg––View (image)
SaiyanMedFreedom Diagnostics2026-08-2750 mg47.42 mg (95%)99.41%View
Alpha PeptidesKovera Labs2026-08-2610 mg10.31 mg (103%)99.702%View
Longevity ProsJanoshik2026-08-26–––View (image)
NextGen HealthILS Laboratories2026-08-2450 mg51.86 mg (104%)99.5%View
Rhome ResearchFreedom Diagnostics2026-08-1718 mg17.92 mg (100%)99.59%View
Paramount PeptidesAccumark Labs2026-08-1150 mg––View (image)
SaiyanMedFreedom Diagnostics2026-08-0750 mg54.18 mg (108%)99.48%View
LumiraCOA concernsFreedom Diagnostics2026-08-0610 mg12.67 mg (127%)99.46%View
Hangzhou Mandy BiotechnologyJanoshik2026-07-2510 mg––View (image)
CertaPeptidesJanoshik2026-07-2410 mg10.57 mg (106%)98.158%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-07-2410 mg11.05 mg (111%)99.46%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-07-2450 mg55.21 mg (110%)99.54%View
PepLab SolutionsKovera Labs2026-07-2410 mg10.47 mg (105%)99.769%View
PeptagonAccumark Labs2026-07-2410 mg12.03 mg (120%)99.07%View
Nuscience PeptidesFreedom Diagnostics2026-07-2310 mg11.16 mg (112%)99.88%View
Core PeptidesVanguard Laboratory2026-07-2225 mg–99.38%View
Onyx ResearchFreedom Diagnostics2026-07-1710 mg9.59 mg (96%)99.42%View
Evolve BioPepEthos Analytics2026-07-1510 mg––View (image)
Paramount PeptidesAccumark Labs2026-07-0710 mg––View (image)
Guangzhou AoyuFreedom Diagnostics2026-07-0110 mg11.95 mg (119%)99.62%View
Liberty PeptidesAccumark Labs2026-06-3050 mg56.77 mg (114%)99.461%View
Amino UsaBioRegen2026-06-2910 mg11.38 mg (114%)99.62%View
Amino UsaBioRegen2026-06-2950 mg55.17 mg (110%)99.46%View
Peptide Group Buy PGBJanoshik2026-06-1910 mg10.66 mg (107%)99%View
Shenzhen Aurora BiotechnologyJanoshik2026-06-1710 mg––View (image)
Simple PeptideFreedom Diagnostics2026-06-1550 mg53.19 mg (106%)99.93%View
Regenerative ResearchBTLabs2026-05-2350 mg50.6 mg (101%)99.6%View
Loti LabsBioviridian2026-05-17–––View (image)
NextGen HealthILS Laboratories2026-05-0750 mg51.39 mg (103%)99.01%View
Wolverine Peptides–2026-04-25––99.16%View
Novabio ResearchCOA concernsNST (SNTEK)2026-03-22–––View (image)
Novabio ResearchCOA concernsNST (SNTEK)2026-03-22–––View (image)
PeptiSlimJanoshik2026-02-2310 mg––View (image)
LMRJanoshik2026-02-1310 mg––View (image)
Licensed PeptidesVanguard Laboratory2026-02-1050 mg54.7 mg (109%)99.8%View
LN Peptides–2025-12-1950 mg––View (image)
The Naughty NeedleFreedom Diagnostics2025-11-1010 mg9.87 mg (99%)99.805%View
Flycn PeptideJanoshik2025-10-15–––View (image)
Medi PeptideJanoshik2025-10-1510 mg––View (image)
Aura PeptidesCOA concernsVanguard Laboratory2025-09-16–––View (image)
Hydro Researchhydroresearchpeptides.com2025-04-2813.12 mg13.12 mg (100%)99.576%View
Amino AmigosMZ Biolabs2025-01-28–5.38 mg98.08%View
Alpha-GenFreedom Diagnostics2025-01-0110 mg10.04 mg (100%)99.819%View
Andy Peps StudioJanoshik–10 mg––View (image)
Apollo Peptide SciencesJanoshik––––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
BioPrecise LLCCOA concerns––10 mg––View (image)
Cocer PeptidesJanoshik–10 mg––View (image)
Dragon Pharma––50 mg––View (image)
HkRoidsCOA concerns––10 mg––View (image)
Longevity PlanMZ Biolabs–––99.5%View
Longevity Plan–––––View (image)
LP Peptide––10 mg––View (image)
Modern Aminos––10 mg––View (image)
Modern Aminos––10 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–40 mg––View (image)
NextechLabsILS Laboratories––––View (image)
Planet PeptideFreedom Diagnostics–10 mg––View (image)
Planet PeptideFreedom Diagnostics–10 mg––View (image)
Platinum CryoChromate–10 mg––View (image)
Pure Tested Peptides–––––View (image)
Shenzhen Aurora BiotechnologyJanoshik–10 mg––View (image)
YuanSense TechJanoshik–10 mg––View (image)

A vendor's COA shows one tested sample, not every batch. Numbers are filled in only where the document is readable text; image-only COAs are linked without numbers. Vendors banned for fake reports are excluded. Compare Epithalon prices and lab-verified vendors.