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All peptides · Selank · COAs

Selank COA & lab test results

98 certificates of analysis published by 72 vendors, newest first.

55with readable numbers
99.68%median purity
111%median measured vs label
16testing labs

Labs: Accumark Labs, Bioviridian, Chromate, Ethos Analytics, Finnrick Analytics, Freedom Diagnostics, Horizon Analytical, ILS Laboratories, Janoshik, Krause Analytical, MZ Biolabs, Pacific Coast Biologics, Precision Mass Spec, Qorix Labs (Tianjin), Vanguard Laboratory, hydroresearchpeptides.com.

VendorLabDateLabelMeasuredPurity
Sunrise BioResearchFreedom Diagnostics2026-09-2410 mg11.12 mg (111%)99.77%View
NextGen HealthILS Laboratories2026-09-2310 mg10.24 mg (102%)99.58%View
CertaPeptidesJanoshik2026-09-1830 mg36.7 mg (122%)99.163%View
Valor peptidesAccumark Labs2026-09-1610 mg10.893 mg (109%)99.812%View
Shanghai Leader Peptide BiotechnologyCOA concernsQorix Labs (Tianjin)2026-09-0510 mg–99.84%View
NuLife PeptidesFreedom Diagnostics2026-09-0410 mg12.55 mg (126%)99.83%View
Crush ResearchILS Laboratories2026-09-03––99.93%View
Pure Peptide LabsPrecision Mass Spec2026-09-0310 mg10.64 mg (106%)99.13%View
Pure Peptide LabsPrecision Mass Spec2026-09-035 mg5.19 mg (104%)99.79%View
Alpha PeptidesILS Laboratories2026-09-0110 mg10.52 mg (105%)99.59%View
Domestic PepsFreedom Diagnostics2026-09-0110 mg12.11 mg (121%)99.76%View
Pharma Grade PeptidesJanoshik2026-08-2710 mg––View (image)
Regenerative ResearchFreedom Diagnostics2026-08-2514 mg13.98 mg (100%)99.95%View
Ion PeptideFreedom Diagnostics2026-08-2410 mg12.94 mg (129%)99.82%View
My Pure PeptideJanoshik2026-08-2410 mg12.01 mg (120%)99.9%View
NextGen HealthILS Laboratories2026-08-2430 mg31.89 mg (106%)99.53%View
Domestic PepsFreedom Diagnostics2026-08-2310 mg10.8 mg (108%)99.74%View
Orbitrex PeptidesFreedom Diagnostics2026-08-2330 mg34.17 mg (114%)99.78%View
Orbitrex PeptidesFreedom Diagnostics2026-08-2010 mg11.66 mg (117%)99.83%View
Orbitrex PeptidesFreedom Diagnostics2026-08-1530 mg32.2 mg (107%)99.68%View
NextGen HealthILS Laboratories2026-08-1410 mg10.45 mg (105%)99.57%View
Peptide CraftersAccumark Labs2026-08-1110 mg9.39 mg (94%)99.86%View
Elite Research USAFreedom Diagnostics2026-08-0910 mg13.76 mg (138%)99.79%View
SaiyanMedFreedom Diagnostics2026-08-0710 mg12.29 mg (123%)99.88%View
Simple PeptideFreedom Diagnostics2026-08-0610 mg12.13 mg (121%)99.21%View
Mai PeptideFreedom Diagnostics2026-08-0510 mg11.48 mg (115%)99.95%View
Gulf Coast AminosFreedom Diagnostics2026-08-0410 mg9.63 mg (96%)99.74%View
Liberty Peptides–2026-08-0410 mg10.14 mg (101%)–View
Glacier AminosEthos Analytics2026-07-2710 mg10.21 mg (102%)–View
Peptide Group Buy PGBJanoshik2026-07-2710 mg13.33 mg (133%)99.63%View
Hangzhou Mandy BiotechnologyJanoshik2026-07-2510 mg––View (image)
PeptagonAccumark Labs2026-07-245 mg8.05 mg (161%)99.662%View
PeptagonAccumark Labs2026-07-2410 mg16 mg (160%)99.306%View
BioPrecise LLCCOA concernsFinnrick Analytics2026-07-2310 mg–99.6%View
RetaluxCOA concernsPacific Coast Biologics2026-07-1510 mg––View
Jett LabsFreedom Diagnostics2026-07-1410 mg12.39 mg (124%)99.67%View
NextGen HealthILS Laboratories2026-07-0810 mg10.56 mg (106%)99.56%View
Paramount PeptidesAccumark Labs2026-07-0610 mg––View (image)
Paramount PeptidesAccumark Labs2026-07-065 mg––View (image)
Liberty PeptidesAccumark Labs2026-07-0110 mg12.39 mg (124%)99.303%View
Modern AminosFreedom Diagnostics2026-07-0110 mg10.83 mg (108%)99.89%View
Lotus BioILS Laboratories2026-0710 mg–99.39%View
DMV PeptidesILS Laboratories2026-06-2910 mg10.42 mg (104%)99.65%View
Onyx ResearchFreedom Diagnostics2026-06-265 mg6.41 mg (128%)99.84%View
Mei PeptideJanoshik2026-06-2210 mg––View (image)
Loti LabsBioviridian2026-06-1710 mg––View (image)
Qingdao Sigma Chemical QSC–2026-05-1830 mg––View (image)
Qingdao Sigma Chemical QSC–2026-05-185 mg––View (image)
Longevity ProsJanoshik2026-05-14–––View (image)
Simple PeptideFreedom Diagnostics2026-05-1410 mg12.03 mg (120%)99.33%View
UtherJanoshik2026-05-1210 mg12.71 mg (127%)99.798%View
UtherJanoshik2026-05-0610 mg13.12 mg (131%)99.436%View
SaiyanMedJanoshik2026-04-2110 mg9.61 mg (96%)99.685%View
NextGen HealthILS Laboratories2026-04-1610 mg10.47 mg (105%)99.68%View
TydesJanoshik2026-04-1010 mg–99.5%View
CertaPeptidesJanoshik2026-03-3110 mg–99.788%View
Amino EssenceCOA concernsJanoshik2026-03-1610 mg––View (image)
Nuscience PeptidesFreedom Diagnostics2026-03-0510 mg––View (image)
PeptiSlimJanoshik2026-02-2310 mg––View (image)
PepLab SolutionsHorizon Analytical2026-02-1810 mg10.2 mg (102%)99.21%View
LMRJanoshik2026-02-1310 mg––View (image)
Alpha-GenFreedom Diagnostics2026-02-0510 mg11.46 mg (115%)99.482%View
Hangzhou Mandy BiotechnologyKrause Analytical2025-12-0110 mg––View (image)
Alpha PeptidesFreedom Diagnostics2025-11-2710 mg12.4 mg (124%)99.615%View
Hydro Researchhydroresearchpeptides.com2025-11-205 mg7.23 mg (145%)99.037%View
The Naughty NeedleFreedom Diagnostics2025-11-105 mg5.44 mg (109%)99.656%View
Steady Meds–2025-10-055 mg––View (image)
Aura PeptidesCOA concernsVanguard Laboratory2025-09-16–––View (image)
Allen Biotechnology Co ABCJanoshik–10 mg––View (image)
Andy Peps StudioJanoshik–10 mg––View (image)
BeiBangAnJanoshik––––View (image)
Cocer PeptidesJanoshik–10 mg––View (image)
Emlin BioScience ExchangeChromate–30 mg––View (image)
Forever Young PharmacyCOA concerns––5 mg5.5 mg (110%)99.6%View
Guangzhou Jeep Biotechnology JEEPJanoshik–10 mg10.71 mg (107%)99.877%View
Hangzhou Youngpeptide Biotechnology HYBJanoshik–10 mg––View (image)
HkRoidsCOA concerns––10 mg––View (image)
HkRoidsCOA concerns––10 mg––View (image)
InjectifyJanoshik––––View (image)
Jett LabsFreedom Diagnostics––––View (image)
Jett LabsFreedom Diagnostics––––View (image)
Kerui Peptide HongKongJanoshik–10 mg––View (image)
Longevity PlanMZ Biolabs–––99.4%View
Longevity Plan–––––View (image)
Mai PeptideJanoshik–10 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–10 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–10 mg––View (image)
NextechLabsVanguard Laboratory–10 mg––View (image)
Penguin Peptides––5 mg––View (image)
Penguin Peptides––10 mg––View (image)
Planet PeptideFreedom Diagnostics–10 mg––View (image)
Planet PeptideFreedom Diagnostics–10 mg––View (image)
PugPepsCOA concerns––10 mg––View (image)
Qingdao Saber Technology Pharma QSTJanoshik–10 mg––View (image)
Royal PeptidesJanoshik–10 mg––View (image)
Shanghai Sigma Audley SSAJanoshik–30 mg––View (image)
WKC Walker ChemicalsJanoshik–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 Selank prices and lab-verified vendors.