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All peptides · GHK-Cu · COAs

GHK-Cu COA & lab test results

188 certificates of analysis published by 110 vendors, newest first.

100with readable numbers
99.805%median purity
105%median measured vs label
24testing labs

Labs: AV Analytics, Accumark Labs, Accurate Test Labs, Analytical Formulations, BTLabs, Bioviridian, Chromate, Ethos Analytics, Finnrick Analytics, Freedom Diagnostics, Frontier Orbital (Tianjin), Horizon Analytical, ILS Laboratories, Janoshik, Kovera Labs, Krause Analytical, Lingke Bio-Detection, MDx BioAnalytical Laboratory, Pacific Coast Biologics, Prime Analytical Laboratories, Qorix Labs (Tianjin), TrustPointe Analytics, Vanguard Laboratory, Waiida.

VendorLabDateLabelMeasuredPurity
Go Alpha Labs PeptidesFreedom Diagnostics2026-10-02100 mg113.02 mg (113%)99.97%View
Go Alpha Labs PeptidesFreedom Diagnostics2026-10-0250 mg54.96 mg (110%)99.92%View
Polaris PeptidesAccumark Labs2026-10-0150 mg63.51 mg (127%)99.96%View
Simple PeptideFreedom Diagnostics2026-09-29115 mg109.86 mg (96%)99.97%View
Valor peptidesAccumark Labs2026-09-29100 mg88.31 mg (88%)98.67%View
Peptide CraftersAccumark Labs2026-09-241000 mg975.48 mg (98%)99.94%View
NextGen HealthILS Laboratories2026-09-2350 mg52.35 mg (105%)99.92%View
NextGen HealthILS Laboratories2026-09-1850 mg52.39 mg (105%)99.9%View
Simple PeptideFreedom Diagnostics2026-09-17100 mg102.77 mg (103%)99.97%View
Valor peptidesAccumark Labs2026-09-16100 mg129.01 mg (129%)99.943%View
Skye PeptidesAccumark Labs2026-09-1350 mg61.436 mg (123%)99.918%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-1150 mg–99.95%View
NexaphJanoshik2026-09-1050 mg48.3 mg (97%)–View
PeptidologyVanguard Laboratory2026-09-10100 mg98.85 mg (99%)99.42%View
Valor peptidesAccumark Labs2026-09-1050 mg58.805 mg (118%)99.905%View
Polaris PeptidesTrustPointe Analytics2026-09-0850 mg––View
Peptide Group Buy PGBJanoshik2026-09-0750 mg52.2 mg (104%)99.23%View
LumiraCOA concernsBTLabs2026-09-0350 mg55.8 mg (112%)99.6%View
NextGen HealthILS Laboratories2026-09-0350 mg52.58 mg (105%)99.92%View
RetaOne LabsKovera Labs2026-09-0250 mg54.26 mg (109%)99.486%View
TydesAccumark Labs2026-09-02120 mg123.29 mg (103%)99.72%View
Alpha PeptidesILS Laboratories2026-09-0150 mg51.98 mg (104%)99.74%View
NextGen HealthILS Laboratories2026-08-29100 mg104.6 mg (105%)99.46%View
Bulk Peptide SupplyCOA concernsAV Analytics2026-08-27100 mg101.46 mg (101%)99.79%View
My Pure PeptideJanoshik2026-08-27100 mg106.41 mg (106%)99.692%View
Amplified AminoJanoshik2026-08-26100 mg90.8 mg (91%)–View
NexaphJanoshik2026-08-26100 mg90.8 mg (91%)–View
Domestic PepsFreedom Diagnostics2026-08-2350 mg57.69 mg (115%)99.89%View
Domestic PepsFreedom Diagnostics2026-08-23100 mg103.48 mg (103%)99.92%View
Core PeptidesVanguard Laboratory2026-08-2150 mg–99.8%View
Core PeptidesVanguard Laboratory2026-08-21200 mg–99.8%View
NextGen HealthILS Laboratories2026-08-2150 mg53.4 mg (107%)99.9%View
Flycn PeptideJanoshik2026-08-20–––View (image)
Polaris PeptidesTrustPointe Analytics2026-08-2050 mg56.645 mg (113%)99.89%View
Polaris PeptidesTrustPointe Analytics2026-08-2050 mg––View
NovapureQorix Labs (Tianjin)2026-08-17100 mg–99.65%View
Alpha BioMed–2026-08-1350 mg––View (image)
NuLife PeptidesFreedom Diagnostics2026-08-09100 mg104.08 mg (104%)99.89%View
NuLife PeptidesFreedom Diagnostics2026-08-0950 mg54.1 mg (108%)99.58%View
CertaPeptidesJanoshik2026-08-06100 mg97.41 mg (97%)99.353%View
Simple PeptideFreedom Diagnostics2026-08-06100 mg117.82 mg (118%)99.5%View
Mai PeptideFreedom Diagnostics2026-08-05100 mg117.52 mg (118%)99.98%View
Peptide Group Buy PGBJanoshik2026-08-05––99.51%View
PeptagonAccumark Labs2026-08-0450 mg62.89 mg (126%)99.947%View
PeptagonAccumark Labs2026-08-04100 mg112.51 mg (113%)99.98%View
SaiyanMedBTLabs2026-08-04100 mg––View (image)
PepLab SolutionsKovera Labs2026-08-03100 mg104.51 mg (105%)99.532%View
Lotus BioFreedom Diagnostics2026-08100 mg–99.63%View
PX PeptidesJanoshik2026-0850 mg–99.191%View
Certified Peptides–2026-07-31100 mg––View (image)
Hangzhou Mandy BiotechnologyJanoshik2026-07-3150 mg––View (image)
LumiraCOA concernsPacific Coast Biologics2026-07-3050 mg61.6 mg (123%)99.8%View
Qingdao Sigma Chemical QSC–2026-07-29100 mg––View (image)
Kits4lessJanoshik2026-07-24100 mg––View (image)
PepLab SolutionsKovera Labs2026-07-2450 mg52.36 mg (105%)99.843%View
BioPrecise LLCCOA concernsFinnrick Analytics2026-07-2350 mg–99.8%View
PeptimeFreedom Diagnostics2026-07-21100 mg109.67 mg (110%)99.94%View
RetaluxCOA concernsPacific Coast Biologics2026-07-15100 mg––View
Glacier AminosKovera Labs2026-07-12100 mg105.093 mg (105%)99.691%View
Skye PeptidesAccumark Labs2026-07-08100 mg124.05 mg (124%)99.9%View
Paramount PeptidesAccumark Labs2026-07-06100 mg––View (image)
Alpha-GenFreedom Diagnostics2026-07-0350 mg46.96 mg (94%)99.38%View
NuLife PeptidesFreedom Diagnostics2026-07-0350 mg46.96 mg (94%)99.38%View
Liberty Peptides–2026-06-3050 mg–99.807%View
Sunrise BioResearchILS Laboratories2026-06-2950 mg52.55 mg (105%)99.63%View
LabRatscoCOA concernsLingke Bio-Detection2026-06-27–––View (image)
Onyx ResearchFreedom Diagnostics2026-06-2650 mg55.56 mg (111%)99.93%View
Onyx ResearchFreedom Diagnostics2026-06-26100 mg99.33 mg (99%)99.82%View
SoliraChromate2026-06-2550 mg–99.805%View
BioHack LondonJanoshik2026-06-23100 mg104.91 mg (105%)99.912%View
Peptide CraftersJanoshik2026-06-22100 mg116.83 mg (117%)99.88%View
Simple PeptideFreedom Diagnostics2026-06-22100 mg112.29 mg (112%)99.91%View
PepClub USAFreedom Diagnostics2026-06-2150 mg50.8 mg (102%)99.82%View
Pepta LabsBTLabs2026-06-1850 mg––View (image)
Loti LabsBioviridian2026-06-1750 mg––View (image)
LumiraCOA concernsKrause Analytical2026-06-15100 mg97.8 mg (98%)99.9%View
DMV PeptidesILS Laboratories2026-06-14100 mg105.74 mg (106%)99.99%View
Evolve BioPepEthos Analytics2026-06-13–––View (image)
Kits4lessJanoshik2026-06-0450 mg––View (image)
Prime PeptidesHorizon Analytical2026-06-03100 mg99.5 mg (100%)99.48%View
Jett LabsFreedom Diagnostics2026-05-3050 mg35.86 mg (72%)99.89%View
Nuscience PeptidesFreedom Diagnostics2026-05-2850 mg57.57 mg (115%)99.92%View
Rhome ResearchFreedom Diagnostics2026-05-2850 mg42.76 mg (86%)99.31%View
Bluebonnet PeptidesILS Laboratories2026-05-25100 mg102.99 mg (103%)99.9%View
Evolve BioPepEthos Analytics2026-05-2150 mg––View (image)
Liberty Peptides–2026-05-182 mg–99.8%View
Swiss Chems–2026-05-18–––View (image)
Longevity ProsJanoshik2026-05-14–––View (image)
My Pure PeptideJanoshik2026-05-13100 mg101 mg (101%)99.556%View
UtherJanoshik2026-05-12100 mg–99.443%View
UtherJanoshik2026-05-1250 mg–99.519%View
Licensed PeptidesVanguard Laboratory2026-05-1150 mg––View (image)
Simple PeptideFreedom Diagnostics2026-05-0160 mg46.79 mg (78%)99.84%View
Pure Tested PeptidesKrause Analytical2026-04-28100 mg76.6 mg (77%)99.9%View
Wolverine Peptides–2026-04-28––99.98%View
Regenerative ResearchKrause Analytical2026-04-2485 mg84.4 mg (99%)99.4%View
Planet PeptideFreedom Diagnostics2026-04-23100 mg117.975 mg (118%)99.67%View
Planet PeptideFreedom Diagnostics2026-04-23100 mg91.87 mg (92%)99.54%View
NextGen HealthILS Laboratories2026-04-2150 mg52.44 mg (105%)99.89%View
SaiyanMedJanoshik2026-04-21100 mg83.47 mg (83%)99.701%View
CertaPeptidesJanoshik2026-04-2050 mg–99.425%View
NextGen HealthILS Laboratories2026-04-1650 mg52.48 mg (105%)99.97%View
Lotus BioAccurate Test Labs2026-0450 mg–99.93%View
PepturionJanoshik2026-03-31–––View (image)
Alpha PeptidesAnalytical Formulations2026-03-3050 mg62.8 mg (126%)99.6%View
LabRatscoCOA concernsWaiida2026-03-2350 mg52.87 mg (106%)99.75%View
LabRatscoCOA concernsWaiida2026-03-23100 mg106.11 mg (106%)99.66%View
Nuscience PeptidesFreedom Diagnostics2026-03-20100 mg––View (image)
Planet PeptideFreedom Diagnostics2026-03-14100 mg108 mg (108%)99.919%View
Kits4lessJanoshik2026-03-0260 mg––View (image)
PepLab SolutionsHorizon Analytical2026-02-2850 mg49.1 mg (98%)99.48%View
Pharma Grade PeptidesJanoshik2026-02-2750 mg––View (image)
Sigma PeptidesPrime Analytical Laboratories2026-02-2550 mg––View (image)
Liyu DailyJanoshik2026-02-2350 mg––View (image)
Hydro ResearchILS Laboratories2026-02-19108.27 mg108.27 mg (100%)99.859%View
Liyu DailyJanoshik2026-02-1950 mg––View (image)
Hangzhou Mandy BiotechnologyJanoshik2026-01-2650 mg––View (image)
Liyu DailyJanoshik2026-01-1450 mg––View (image)
PepLab SolutionsHorizon Analytical2026-01-12100 mg99 mg (99%)99.41%View
Aavant ResearchJanoshik2025-12-23–54.01 mg99.737%View
Modern AminosVanguard Laboratory2025-12-182 mg2.22 mg (111%)99.8%View
Peptide Healths–2025-12-10–––View (image)
PeptideJFTJanoshik2025-12-10100 mg––View (image)
Flycn PeptideJanoshik2025-10-16–––View (image)
Medi PeptideJanoshik2025-10-15100 mg––View (image)
Shanghai ERP peptide BiotechnologyCOA concernsJanoshik2025-10-01100 mg––View (image)
Aura PeptidesCOA concernsVanguard Laboratory2025-09-16–––View (image)
PeptiSlimJanoshik2025-09-05100 mg––View (image)
LMRJanoshik2025-09-04100 mg––View (image)
The Naughty NeedleFreedom Diagnostics2025-09-0350 mg48.49 mg (97%)99.87%View
Bulk Peptide WholesaleChromate2025-03-24100 mg––View (image)
Amino Amigos–2024-03-01–106.74 mg98%View
Andy Peps StudioJanoshik–100 mg––View (image)
Apollo Peptide SciencesJanoshik–80 mg––View (image)
Apollo Peptide SciencesJanoshik–50 mg––View (image)
BarnJanoshik–80 mg––View (image)
BeiBangAnJanoshik–50 mg––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
Bluebonnet Peptides––100 mg––View (image)
Cartman GearJanoshik–100 mg––View (image)
Cocer PeptidesJanoshik–100 mg––View (image)
Cocer PeptidesJanoshik–50 mg––View (image)
Emlin BioScience Exchange––100 mg––View (image)
Eros PeptidesFreedom Diagnostics–50 mg––View (image)
Guangzhou Jeep Biotechnology JEEPJanoshik–50 mg50.14 mg (100%)99.144%View
Guangzhou Jeep Biotechnology JEEPJanoshik–100 mg103.8 mg (104%)99.814%View
Hangzhou Youngpeptide Biotechnology HYBJanoshik–100 mg––View (image)
Hangzhou Youngpeptide Biotechnology HYBJanoshik–50 mg––View (image)
HB PeptidesJanoshik–100 mg––View (image)
HkRoidsCOA concerns––50 mg––View (image)
HkRoidsCOA concerns––50 mg––View (image)
HkRoidsCOA concerns––50 mg––View (image)
HkRoidsCOA concerns––100 mg––View (image)
Hydro ResearchChromate–100 mg––View (image)
InjectifyJanoshik––––View (image)
InjectifyJanoshik––––View (image)
Kerui Peptide HongKongJanoshik–100 mg––View (image)
Kerui Peptide HongKongJanoshik–50 mg––View (image)
Longevity Plan–––––View (image)
LP Peptide––50 mg––View (image)
LP Peptide––100 mg––View (image)
Mai PeptideJanoshik–100 mg––View (image)
Modern Aminos–––––View (image)
Nantong Guangyuan Chemical GYCJanoshik–100 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–50 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–100 mg––View (image)
NextechLabsILS Laboratories––––View (image)
NextechLabsVanguard Laboratory–100 mg––View (image)
NovapureFrontier Orbital (Tianjin)–100 mg–99%View
Peptides 4 Research––50 mg––View (image)
Peptides 4 Research––100 mg––View (image)
Planet PeptideFreedom Diagnostics–100 mg––View (image)
Planet PeptideFreedom Diagnostics–100 mg––View (image)
Planet PeptideFreedom Diagnostics–100 mg––View (image)
Platinum CryoChromate–80 mg––View (image)
Platinum CryoChromate–40 mg––View (image)
PugPepsCOA concerns––100 mg––View (image)
PurePeptides––100 mg––View (image)
Qingdao Saber Technology Pharma QSTJanoshik–100 mg––View (image)
Qingdao Saber Technology Pharma QSTJanoshik–50 mg––View (image)
Royal PeptidesJanoshik–50 mg––View (image)
Royal PeptidesJanoshik–50 mg––View (image)
Royal PeptidesJanoshik–100 mg––View (image)
Shanghai Wibson Biotechnology WBSJanoshik–100 mg––View (image)
WKC Walker ChemicalsJanoshik–100 mg––View (image)
WKC Walker ChemicalsJanoshik–50 mg––View (image)
XTPCOA concernsJanoshik–50 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 GHK-Cu prices and lab-verified vendors.