Peptide Price Finder

All peptides · PT-141 · COAs

PT-141 COA & lab test results

71 certificates of analysis published by 57 vendors, newest first.

41with readable numbers
99.87%median purity
107%median measured vs label
18testing labs

Labs: Accumark Labs, Analytical Formulations, Bioviridian, Chromate, Ethos Analytics, Forever Young Pharmacy, Freedom Diagnostics, Horizon Analytical, ILS Laboratories, Janoshik, Kovera Labs, Krause Analytical, Lingke Bio-Detection, MDx BioAnalytical Laboratory, MZ Biolabs, Pacific Coast Biologics, Prime Analytical Laboratories, Qorix Labs (Tianjin).

VendorLabDateLabelMeasuredPurity
Go Alpha Labs PeptidesFreedom Diagnostics2026-10-0210 mg8.74 mg (87%)99.95%View
Polaris PeptidesAccumark Labs2026-09-3010 mg12.86 mg (129%)99.9%View
Sunrise BioResearchFreedom Diagnostics2026-09-2810 mg9.71 mg (97%)99.78%View
NextGen HealthILS Laboratories2026-09-2310 mg10.4 mg (104%)99.93%View
Swiss ChemsFreedom Diagnostics2026-09-2310 mg9.31 mg (93%)99.95%View
CertaPeptidesJanoshik2026-09-1810 mg9.73 mg (97%)99.976%View
Shanghai Leader Peptide BiotechnologyCOA concernsFreedom Diagnostics2026-09-1710 mg–99.77%View
Simple PeptideFreedom Diagnostics2026-09-1710 mg12.53 mg (125%)99.96%View
Valor peptidesAccumark Labs2026-09-1610 mg10.65 mg (107%)99.845%View
My Pure PeptideJanoshik2026-09-1010 mg10.58 mg (106%)99.965%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-1010 mg–99.87%View
Glacier AminosEthos Analytics2026-09-0910 mg10.155 mg (102%)–View
PeptagonAccumark Labs2026-09-0910 mg12.479 mg (125%)99.806%View
Peptide Group Buy PGBJanoshik2026-09-0710 mg11.68 mg (117%)99.87%View
NextGen HealthILS Laboratories2026-09-0310 mg10.22 mg (102%)99.52%View
Domestic PepsFreedom Diagnostics2026-09-0110 mg10.19 mg (102%)99.87%View
NuLife PeptidesFreedom Diagnostics2026-09-0110 mg9.09 mg (91%)99.86%View
Amplified AminoJanoshik2026-08-0610 mg11.38 mg (114%)99.924%View
NexaphJanoshik2026-08-0610 mg11.38 mg (114%)99.92%View
LumiraCOA concernsKrause Analytical2026-08-0510 mg–99.9%View
Lotus BioILS Laboratories2026-0810 mg–99.87%View
Certified Peptides–2026-07-3110 mg––View (image)
Alpha-GenFreedom Diagnostics2026-07-2810 mg9.67 mg (97%)99.82%View
NuLife PeptidesFreedom Diagnostics2026-07-2810 mg9.67 mg (97%)99.82%View
LumiraCOA concernsPacific Coast Biologics2026-07-2710 mg11.5 mg (115%)99.1%View
Domestic PepsFreedom Diagnostics2026-07-2610 mg12.09 mg (121%)99.93%View
Hangzhou Mandy BiotechnologyJanoshik2026-07-2510 mg––View (image)
Orbitrex PeptidesFreedom Diagnostics2026-07-2510 mg11.68 mg (117%)99.76%View
PepLab SolutionsKovera Labs2026-07-2410 mg11.33 mg (113%)99.706%View
Guangzhou AoyuFreedom Diagnostics2026-07-0110 mg12.42 mg (124%)99.93%View
LabRatscoCOA concernsLingke Bio-Detection2026-06-27–––View (image)
NextGen HealthILS Laboratories2026-06-2510 mg10.64 mg (106%)99.97%View
Peptide PartnersKovera Labs2026-06-2510 mg13.1 mg (131%)99.742%View
Loti LabsBioviridian2026-06-1710 mg––View (image)
Alpha PeptidesAnalytical Formulations2026-05-2610 mg11.58 mg (116%)99.6%View
Gulf Coast AminosFreedom Diagnostics2026-05-2310 mg10.76 mg (108%)99.9%View
Simple PeptideFreedom Diagnostics2026-05-1410 mg12.3 mg (123%)99.67%View
Huaian Banting TradingJanoshik2026-05-1210 mg––View (image)
TydesJanoshik2026-05-0110 mg–99.78%View
Planet PeptideFreedom Diagnostics2026-04-2310 mg9.62 mg (96%)99.9%View
SaiyanMedJanoshik2026-04-2210 mg10.1 mg (101%)99.985%View
NextGen HealthILS Laboratories2026-04-1610 mg10.49 mg (105%)99.95%View
Sigma PeptidesPrime Analytical Laboratories2026-03-1910 mg––View (image)
Pharma Grade PeptidesJanoshik2026-02-2710 mg––View (image)
Wolverine PeptidesJanoshik2026-02-1110 mg––View (image)
PepLab SolutionsHorizon Analytical2026-01-1210 mg9.95 mg (99%)99.13%View
Wolverine Peptides–2025-12-16–––View
HkRoidsCOA concernsFreedom Diagnostics2025-11-0510 mg12.27 mg (123%)99.884%View
Risynth BioKrause Analytical2025-09-0410 mg––View (image)
Amino AmigosMZ Biolabs2025-01-27–10.98 mg99.44%View
Allen Biotechnology Co ABCJanoshik––––View (image)
Atomik Labz––10 mg––View (image)
BarnJanoshik–10 mg––View (image)
Biolongevity LabsMDx BioAnalytical Laboratory––––View (image)
BioPrecise LLCCOA concerns––10 mg––View (image)
Emlin BioScience ExchangeBioviridian–10 mg––View (image)
Emlin BioScience Exchange––10 mg––View (image)
HealthTide BiotechForever Young Pharmacy–10 mg––View (image)
Hydro ResearchChromate–10 mg––View (image)
Kerui Peptide HongKongJanoshik–10 mg––View (image)
Longevity Plan–––––View (image)
LP Peptide––10 mg––View (image)
Modern Aminos––10 mg––View (image)
NextechLabsILS Laboratories––––View (image)
Noble DragonsJanoshik–10 mg––View (image)
Noble DragonsJanoshik–10 mg––View (image)
PurePeptides––10 mg––View (image)
Verified Peptides––10 mg––View (image)
Verified Peptides––10 mg––View (image)
WKC Walker ChemicalsJanoshik––––View (image)
WKC Walker ChemicalsJanoshik–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 PT-141 prices and lab-verified vendors.