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All peptides · MOTS-c · COAs

MOTS-c COA & lab test results

199 certificates of analysis published by 117 vendors, newest first.

96with readable numbers
99.57%median purity
107%median measured vs label
18testing labs

Labs: Accumark Labs, Analytical Formulations, BTLabs, Bioviridian, Chromate, Freedom Diagnostics, Horizon Analytical, ILS Laboratories, Janoshik, Kovera Labs, Krause Analytical, MDx BioAnalytical Laboratory, MZ Biolabs, Pacific Coast Biologics, Prime Analytical Laboratories, Qorix Labs (Tianjin), TrustPointe Analytics, Vanguard Laboratory.

VendorLabDateLabelMeasuredPurity
Go Alpha Labs PeptidesFreedom Diagnostics2026-10-0210 mg11.6 mg (116%)99.11%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-10-0240 mg38.01 mg (95%)99.4%View
Polaris PeptidesAccumark Labs2026-09-3010 mg11.9 mg (119%)99.62%View
Valor peptidesAccumark Labs2026-09-3010 mg11.009 mg (110%)99.896%View
Valor peptidesAccumark Labs2026-09-3030 mg30.487 mg (102%)99.749%View
Sunrise BioResearchFreedom Diagnostics2026-09-2810 mg12.88 mg (129%)99.58%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-09-2640 mg38.99 mg (97%)99.37%View
Ion PeptideFreedom Diagnostics2026-09-2610 mg8.97 mg (90%)99.17%View
PeptidologyVanguard Laboratory2026-09-2540 mg50.02 mg (125%)99.8%View
Orbitrex PeptidesFreedom Diagnostics2026-09-1910 mg12.19 mg (122%)99.3%View
Skye PeptidesAccumark Labs2026-09-1830 mg35.232 mg (117%)99.928%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-1120 mg–99.89%View
SoliraChromate2026-09-1010 mg–99.305%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-09-0910 mg10.96 mg (110%)99.35%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-09-0940 mg37.52 mg (94%)99.57%View
Crush ResearchILS Laboratories2026-09-0640 mg41.84 mg (105%)99.9%View
LumiraCOA concernsBTLabs2026-09-0340 mg43.5 mg (109%)99.9%View
Amplified AminoJanoshik2026-09-0210 mg10.35 mg (103%)98.88%View
NexaphJanoshik2026-09-0210 mg10.35 mg (103%)98.88%View
Peptide PartnersTrustPointe Analytics2026-09-0240 mg37.95 mg (95%)99.854%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-0240 mg–99.89%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-0210 mg–99.85%View
NuLife PeptidesFreedom Diagnostics2026-09-0140 mg38.97 mg (97%)99.4%View
SaiyanMedFreedom Diagnostics2026-08-2740 mg40.21 mg (101%)99.52%View
Longevity ProsJanoshik2026-08-26–––View (image)
Ion PeptideFreedom Diagnostics2026-08-2440 mg40.16 mg (100%)99.7%View
Flycn PeptideJanoshik2026-08-21–––View (image)
My Pure PeptideJanoshik2026-08-2140 mg46.59 mg (116%)99.449%View
Orbitrex PeptidesILS Laboratories2026-08-2040 mg41.62 mg (104%)99.82%View
Peptide PartnersTrustPointe Analytics2026-08-1910 mg9.53 mg (95%)99.912%View
NextGen HealthILS Laboratories2026-08-1840 mg42.21 mg (106%)99.83%View
Rhome ResearchFreedom Diagnostics2026-08-1710 mg12.64 mg (126%)99.15%View
SaiyanMedFreedom Diagnostics2026-08-1710 mg9.09 mg (91%)99.54%View
NuLife PeptidesFreedom Diagnostics2026-08-1520 mg21.04 mg (105%)99.81%View
Alpha BioMed–2026-08-1310 mg––View (image)
Elite Research USAFreedom Diagnostics2026-08-0920 mg21.45 mg (107%)99.36%View
Amplified AminoFreedom Diagnostics2026-08-0810 mg11.42 mg (114%)99.45%View
NexaphFreedom Diagnostics2026-08-0810 mg11.42 mg (114%)99.45%View
Mai PeptideFreedom Diagnostics2026-08-0510 mg12.29 mg (123%)99.9%View
PeptagonAccumark Labs2026-08-0410 mg11.86 mg (119%)99.927%View
PepLab SolutionsKovera Labs2026-08-0340 mg42.2 mg (106%)99.604%View
Lotus BioILS Laboratories2026-0810 mg–99.68%View
Lotus BioJanoshik2026-0840 mg–99.581%View
Certified Peptides–2026-07-3140 mg––View (image)
Regenerative ResearchILS Laboratories2026-07-3140 mg41.18 mg (103%)99.87%View
Loti LabsBioviridian2026-07-2710 mg––View (image)
Domestic PepsFreedom Diagnostics2026-07-2640 mg46.37 mg (116%)99.47%View
Orbitrex PeptidesILS Laboratories2026-07-2640 mg41.14 mg (103%)99.77%View
Hangzhou Mandy BiotechnologyJanoshik2026-07-2510 mg––View (image)
Amplified AminoJanoshik2026-07-2410 mg10.97 mg (110%)98.071%View
CertaPeptidesJanoshik2026-07-2440 mg40.37 mg (101%)99.266%View
Kits4lessJanoshik2026-07-2410 mg––View (image)
PepLab SolutionsKovera Labs2026-07-2410 mg10.02 mg (100%)99.422%View
LumiraCOA concerns–2026-07-2040 mg–99.506%View
LumiraCOA concernsPacific Coast Biologics2026-07-1910 mg10.8 mg (108%)99.2%View
Jett LabsFreedom Diagnostics2026-07-1510 mg10.57 mg (106%)99.85%View
RetaluxCOA concernsPacific Coast Biologics2026-07-1540 mg––View
TydesAccumark Labs2026-07-0812 mg11.83 mg (99%)99.734%View
Skye PeptidesAccumark Labs2026-07-0730 mg35.77 mg (119%)99.718%View
Shenzhen Aurora BiotechnologyJanoshik2026-07-0510 mg––View (image)
Alpha-GenFreedom Diagnostics2026-07-0310 mg10.17 mg (102%)99.6%View
NexaphJanoshik2026-07-0210 mg11.09 mg (111%)97.94%View
Liberty Peptides–2026-07-0110 mg19.42 mg (194%)99.294%View
Polaris PeptidesAccumark Labs2026-07-0110 mg12.12 mg (121%)99.878%View
Licensed PeptidesVanguard Laboratory2026-06-2940 mg––View (image)
Peptide CraftersAccumark Labs2026-06-2915 mg16.03 mg (107%)99.66%View
NextGen HealthILS Laboratories2026-06-2840 mg41.28 mg (103%)99.86%View
Bulk Peptide SupplyCOA concernsMDx BioAnalytical Laboratory2026-06-2740 mg40.63 mg (102%)99.77%View
Onyx ResearchFreedom Diagnostics2026-06-2610 mg10.67 mg (107%)99.92%View
Glacier AminosKovera Labs2026-06-2420 mg19.777 mg (99%)99.533%View
Modern AminosFreedom Diagnostics2026-06-2440 mg37.65 mg (94%)99.64%View
Mei PeptideJanoshik2026-06-2240 mg––View (image)
PepClub USAFreedom Diagnostics2026-06-2140 mg41.07 mg (103%)99.6%View
BioHack LondonJanoshik2026-06-1910 mg11.87 mg (119%)99.027%View
BioHack LondonJanoshik2026-06-1940 mg46.46 mg (116%)99.234%View
DMV PeptidesILS Laboratories2026-06-1540 mg41.33 mg (103%)99.65%View
Peptide Group Buy PGBJanoshik2026-06-0510 mg11.51 mg (115%)99.26%View
CertaPeptidesJanoshik2026-05-2810 mg–99.301%View
Bluebonnet PeptidesILS Laboratories2026-05-2640 mg42.63 mg (107%)99.47%View
Bluebonnet PeptidesILS Laboratories2026-05-2610 mg10.33 mg (103%)99.89%View
Modern AminosFreedom Diagnostics2026-05-2410 mg11.07 mg (111%)99.87%View
NextGen HealthILS Laboratories2026-05-2340 mg41.39 mg (103%)99.04%View
Huatai PeptideFreedom Diagnostics2026-05-1940 mg41.3 mg (103%)99.58%View
Qingdao Sigma Chemical QSC–2026-05-1820 mg––View (image)
Longevity ProsJanoshik2026-05-14–––View (image)
Nuscience PeptidesFreedom Diagnostics2026-05-1220 mg25.15 mg (126%)99.59%View
Planet PeptideFreedom Diagnostics2026-05-1210 mg12.76 mg (128%)99.45%View
UtherJanoshik2026-05-1220 mg23.4 mg (117%)99.045%View
Licensed PeptidesVanguard Laboratory2026-05-1110 mg––View (image)
Simple PeptideFreedom Diagnostics2026-05-0810 mg11.06 mg (111%)99.78%View
Guangzhou AoyuFreedom Diagnostics2026-05-01–41.11 mg99.14%View
Junli PeptideCOA concernsJanoshik2026-04-29–––View (image)
Alpha PeptidesAnalytical Formulations2026-04-2510 mg10.77 mg (108%)99.65%View
Swiss Chems–2026-04-2510 mg––View (image)
Shenzhen Aurora BiotechnologyJanoshik2026-04-2410 mg––View (image)
SaiyanMedJanoshik2026-04-2110 mg10.71 mg (107%)99.795%View
Wolverine Peptides–2026-04-21––99.45%View
Nuscience PeptidesFreedom Diagnostics2026-04-1440 mg43.21 mg (108%)99.48%View
Aura PeptidesCOA concernsHorizon Analytical2026-04-12–––View (image)
Pura PeptidesFreedom Diagnostics2026-04-1210 mg––View (image)
Prime PeptidesVanguard Laboratory2026-03-2510 mg10.74 mg (107%)99.05%View
Pharma Grade PeptidesJanoshik2026-02-2710 mg––View (image)
Pharma Grade PeptidesJanoshik2026-02-275 mg––View (image)
Sigma PeptidesPrime Analytical Laboratories2026-02-2510 mg––View (image)
Hydro ResearchILS Laboratories2026-02-1911.74 mg11.74 mg (100%)99.712%View
Liyu DailyJanoshik2026-02-1910 mg––View (image)
Guangzhou AoyuFreedom Diagnostics2026-02-1440 mg41.84 mg (105%)99.354%View
PeptideJFTJanoshik2026-02-12–––View (image)
Risynth BioKovera Labs2026-02-1140 mg––View (image)
Wolverine PeptidesJanoshik2026-02-1110 mg––View (image)
PepLab SolutionsHorizon Analytical2026-01-0910 mg10.12 mg (101%)99.48%View
Amino EssenceCOA concernsChromate2025-12-2210 mg––View (image)
Peptide Healths–2025-12-19–––View (image)
LN Peptides–2025-12-1540 mg––View (image)
Hangzhou Mandy BiotechnologyKrause Analytical2025-12-1240 mg––View (image)
HkRoidsCOA concernsFreedom Diagnostics2025-12-1110 mg11.63 mg (116%)99.669%View
Alpha PeptidesFreedom Diagnostics2025-11-2710 mg9.1 mg (91%)99.019%View
LN PeptidesJanoshik2025-11-2640 mg––View (image)
HkRoidsCOA concernsFreedom Diagnostics2025-11-0510 mg10.42 mg (104%)99.279%View
LN Peptides–2025-10-2140 mg––View (image)
Flycn PeptideJanoshik2025-10-15–––View (image)
Medi PeptideJanoshik2025-10-1510 mg––View (image)
Shanghai ERP peptide BiotechnologyCOA concernsJanoshik2025-10-0140 mg––View (image)
Peptide HavenFreedom Diagnostics2025-09-2310 mg12.15 mg (122%)99.13%View
Huaian Banting TradingJanoshik2025-09-1840 mg––View (image)
Huaian Dinglin TradingJanoshik2025-09-1840 mg––View (image)
PeptideJFTJanoshik2025-09-11–––View (image)
PeptiSlimJanoshik2025-09-0510 mg––View (image)
LMRJanoshik2025-09-0410 mg––View (image)
The Naughty NeedleFreedom Diagnostics2025-08-2810 mg11.16 mg (112%)99.34%View
Peptides For LessJanoshik2025-05-2810 mg–99.661%View
Bulk Peptide WholesaleChromate2025-03-2710 mg––View (image)
Pura PeptidesChromate2025-02-0510 mg––View (image)
Allen Biotechnology Co ABCJanoshik–10 mg––View (image)
Allen Biotechnology Co ABCJanoshik–10 mg––View (image)
Andy Peps StudioJanoshik–10 mg––View (image)
Andy Peps StudioJanoshik–10 mg––View (image)
BarnJanoshik–10 mg––View (image)
BarnJanoshik–40 mg––View (image)
BarnJanoshik–10 mg––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
BioPrecise LLCCOA concerns–––––View (image)
Cartman GearJanoshik–10 mg––View (image)
Cartman GearJanoshik–40 mg––View (image)
Cocer PeptidesJanoshik–40 mg––View (image)
Domestic PepsChromate–40 mg––View (image)
Emlin BioScience ExchangeChromate–40 mg––View (image)
Emlin BioScience Exchange––40 mg––View (image)
Eros PeptidesFreedom Diagnostics–10 mg––View (image)
Guangzhou Jeep Biotechnology JEEPJanoshik–10 mg9.05 mg (91%)99.329%View
Guangzhou Jeep Biotechnology JEEPJanoshik–40 mg41.84 mg (105%)99.312%View
Guangzhou Jeep Biotechnology JEEPJanoshik–10 mg10.78 mg (108%)99.789%View
Hangzhou Youngpeptide Biotechnology HYBJanoshik–10 mg––View (image)
HkRoidsCOA concerns–––––View (image)
HkRoidsCOA concerns––10 mg––View (image)
InjectifyJanoshik––––View (image)
InjectifyJanoshik––––View (image)
Jinan Elitepeptide Chemical JEC JCEJanoshik–10 mg––View (image)
Jinan Elitepeptide Chemical JEC JCEJanoshik–10 mg––View (image)
Kerui Peptide HongKongJanoshik–10 mg––View (image)
Kerui Peptide HongKongJanoshik–10 mg––View (image)
Longevity PlanMZ Biolabs–––99.3%View
Longevity Plan–––––View (image)
LP Peptide––10 mg––View (image)
LP Peptide––20 mg––View (image)
LP Peptide––40 mg––View (image)
Modern Aminos–––––View (image)
Modern Aminos––40 mg––View (image)
NextechLabsILS Laboratories––––View (image)
Noble DragonsJanoshik–10 mg––View (image)
Noble DragonsJanoshik–10 mg––View (image)
Peptides 4 ResearchMDx BioAnalytical Laboratory–10 mg––View (image)
Planet PeptideFreedom Diagnostics–10 mg––View (image)
Planet PeptideFreedom Diagnostics–10 mg––View (image)
Platinum CryoChromate–10 mg––View (image)
Platinum CryoChromate–40 mg––View (image)
Prime PeptidesJanoshik––––View (image)
PugPepsCOA concerns––10 mg––View (image)
PugPepsCOA concerns––40 mg––View (image)
Pure Tested Peptides–––––View (image)
PurePeptides––40 mg––View (image)
PurePeptides––10 mg––View (image)
Qingdao Saber Technology Pharma QSTJanoshik–10 mg––View (image)
Rhome Research––10 mg––View (image)
Rhome Research––10 mg––View (image)
Royal PeptidesJanoshik–40 mg––View (image)
Royal PeptidesJanoshik–10 mg––View (image)
Shanghai Wibson Biotechnology WBSJanoshik–10 mg––View (image)
Shanghai Wibson Biotechnology WBS––40 mg––View (image)
Shenzhen Aurora BiotechnologyJanoshik–10 mg––View (image)
Shenzhen Aurora BiotechnologyJanoshik–10 mg––View (image)
Tianjin Finder Chemical TFCJanoshik–10 mg––View (image)
WKC Walker ChemicalsJanoshik–10 mg––View (image)
WKC Walker ChemicalsJanoshik–40 mg––View (image)
XTPCOA concernsJanoshik–40 mg––View (image)
XTPCOA concernsJanoshik–10 mg––View (image)
YuanSense TechJanoshik––––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 MOTS-c prices and lab-verified vendors.