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All peptides · Glutathione · COAs

Glutathione COA & lab test results

45 certificates of analysis published by 35 vendors, newest first.

25with readable numbers
99.63%median purity
102%median measured vs label
12testing labs

Labs: ARL Bio Pharma, AV Analytics, BioRegen, Bioviridian, Chromate, Freedom Diagnostics, ILS Laboratories, Janoshik, Kovera Labs, Krause Analytical, Vanguard Laboratory, hydroresearchpeptides.com.

VendorLabDateLabelMeasuredPurity
Ion PeptideFreedom Diagnostics2026-09-261500 mg1521.36 mg (101%)99.9%View
Licensed PeptidesVanguard Laboratory2026-09-25600 mg––View (image)
SoliraChromate2026-09-221500 mg1462 mg (97%)99.482%View
Simple PeptideFreedom Diagnostics2026-09-191500 mg1537.93 mg (103%)99.86%View
Above All PeptidesKrause Analytical2026-09-171500 mg––View (image)
NextGen HealthILS Laboratories2026-09-141500 mg1551.94 mg (103%)99.34%View
Regenerative ResearchFreedom Diagnostics2026-09-111500 mg1596.5 mg (106%)99.92%View
Elite Research USAFreedom Diagnostics2026-09-081500 mg1555.4 mg (104%)99.67%View
Bulk Peptide SupplyCOA concernsAV Analytics2026-09-061500 mg––View
Ion PeptideFreedom Diagnostics2026-08-24750 mg568.96 mg (76%)99.93%View
Ion PeptideFreedom Diagnostics2026-08-24600 mg606.01 mg (101%)99.67%View
NextGen HealthILS Laboratories2026-08-211500 mg1531.09 mg (102%)98.09%View
My Pure PeptideJanoshik2026-08-11600 mg637.21 mg (106%)98.71%View
CertaPeptidesJanoshik2026-08-051500 mg1527.43 mg (102%)98.76%View
PepLab SolutionsKovera Labs2026-08-031500 mg1538.17 mg (103%)99.542%View
Hangzhou Mandy BiotechnologyJanoshik2026-07-28600 mg––View (image)
Go Alpha Labs PeptidesFreedom Diagnostics2026-07-241500 mg1562.4 mg (104%)99.95%View
RetaOne LabsKovera Labs2026-07-241500 mg1524.16 mg (102%)99.857%View
NextGen HealthILS Laboratories2026-07-031500 mg1558.65 mg (104%)99.17%View
Longevity ProsJanoshik2026-07-02–––View (image)
Longevity ProsJanoshik2026-07-01–––View (image)
Amino UsaBioRegen2026-06-29600 mg657 mg (110%)99.63%View
Alpha-GenFreedom Diagnostics2026-06-221500 mg1505.23 mg (100%)99.86%View
Simple PeptideFreedom Diagnostics2026-06-221500 mg1505.23 mg (100%)99.82%View
NextGen HealthILS Laboratories2026-05-231500 mg1529.73 mg (102%)98.4%View
Sunrise BioResearchILS Laboratories2026-05-141500 mg1597.79 mg (107%)99.3%View
Rhome ResearchFreedom Diagnostics2026-04-15500 mg–99.83%View
Prime Peptides–2026-04-01–––View (image)
Nuscience PeptidesFreedom Diagnostics2026-03-031500 mg––View (image)
Guangzhou AoyuFreedom Diagnostics2026-02-141500 mg1451.62 mg (97%)99.194%View
Loti LabsBioviridian2026-02-05600 mg––View (image)
Hydro Researchhydroresearchpeptides.com2025-11-201500 mg1689.04 mg (113%)99.208%View
Huaian Banting TradingJanoshik2025-09-171500 mg––View (image)
Huaian Dinglin TradingJanoshik2025-09-171500 mg––View (image)
Forever Young PharmacyCOA concernsARL Bio Pharma2024-06-03600 mg599.34 mg (100%)–View
BioPrecise LLCCOA concerns––600 mg––View (image)
Eros PeptidesJanoshik–1500 mg––View (image)
Eros PeptidesJanoshik–1500 mg––View (image)
Eros PeptidesJanoshik–1500 mg––View (image)
Eros PeptidesJanoshik–1500 mg––View (image)
InjectifyJanoshik––––View (image)
Longevity Plan–––––View (image)
Modern Aminos––600 mg––View (image)
NextechLabsVanguard Laboratory––––View (image)
Tianjin Finder Chemical TFCJanoshik––––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 Glutathione prices and lab-verified vendors.