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All peptides · SS-31 · COAs

SS-31 COA & lab test results

85 certificates of analysis published by 64 vendors, newest first.

38with readable numbers
99.83%median purity
107%median measured vs label
12testing labs

Labs: Accumark Labs, Analytical Formulations, BTLabs, Chromate, Freedom Diagnostics, ILS Laboratories, Janoshik, Kovera Labs, Krause Analytical, MDx BioAnalytical Laboratory, TrustPointe Analytics, Vanguard Laboratory.

VendorLabDateLabelMeasuredPurity
Polaris PeptidesTrustPointe Analytics2026-10-0125 mg29.203 mg (117%)99.907%View
Sunrise BioResearchFreedom Diagnostics2026-10-0150 mg47.27 mg (95%)99.83%View
Certified Peptides–2026-09-2850 mg––View (image)
Peptide PartnersChromate2026-09-23––99.85%View
RetaluxCOA concernsChromate2026-09-1950 mg–99.67%View
Steady MedsFreedom Diagnostics2026-09-1910 mg13.15 mg (132%)99.78%View
Royal PeptidesFreedom Diagnostics2026-09-1750 mg58.44 mg (117%)99.83%View
Elite Research USAFreedom Diagnostics2026-09-0810 mg10.88 mg (109%)99.77%View
Peptide Group Buy PGBJanoshik2026-09-0725 mg26.81 mg (107%)99.85%View
Ion PeptideFreedom Diagnostics2026-09-0550 mg55.04 mg (110%)99.86%View
LumiraCOA concernsBTLabs2026-09-0350 mg54.6 mg (109%)99.9%View
Peptide PartnersTrustPointe Analytics2026-09-0210 mg9.98 mg (100%)99.991%View
Certified Peptides–2026-09-0110 mg––View (image)
NuLife PeptidesFreedom Diagnostics2026-09-0150 mg43.16 mg (86%)99.91%View
Amplified AminoJanoshik2026-08-2630 mg28.61 mg (95%)99.71%View
Longevity ProsJanoshik2026-08-26–––View (image)
NexaphJanoshik2026-08-2630 mg28.61 mg (95%)99.71%View
Shenzhen Aurora BiotechnologyFreedom Diagnostics2026-08-2510 mg––View (image)
Crush ResearchILS Laboratories2026-08-2450 mg52.54 mg (105%)99.25%View
Domestic PepsFreedom Diagnostics2026-08-2350 mg59.13 mg (118%)99.67%View
SaiyanMedFreedom Diagnostics2026-08-1710 mg10 mg (100%)99.88%View
Peptide PartnersTrustPointe Analytics2026-08-1450 mg45.37 mg (91%)99.661%View
My Pure PeptideJanoshik2026-08-1250 mg51.52 mg (103%)99.758%View
CertaPeptidesJanoshik2026-08-0610 mg11.17 mg (112%)99.841%View
Mai PeptideFreedom Diagnostics2026-08-0510 mg12.39 mg (124%)99.92%View
Polaris PeptidesAccumark Labs2026-08-0325 mg27.67 mg (111%)99.83%View
Alpha-GenFreedom Diagnostics2026-08-0110 mg10.75 mg (108%)99.92%View
PX PeptidesJanoshik2026-0810 mg–99.857%View
Regenerative ResearchILS Laboratories2026-07-3150 mg51.98 mg (104%)99.61%View
Domestic PepsFreedom Diagnostics2026-07-2650 mg54.35 mg (109%)99.74%View
Hangzhou Mandy BiotechnologyJanoshik2026-07-2510 mg––View (image)
Peptide CraftersVanguard Laboratory2026-07-0239 mg39.07 mg (100%)98.72%View
CertaPeptidesJanoshik2026-06-1950 mg53.35 mg (107%)99.634%View
Gulf Coast AminosFreedom Diagnostics2026-06-1950 mg51.05 mg (102%)99.96%View
RetaOne LabsKovera Labs2026-05-2810 mg11.81 mg (118%)99.187%View
Amplified AminoJanoshik2026-05-2530 mg28.42 mg (95%)99.682%View
Licensed PeptidesVanguard Laboratory2026-05-0550 mg––View (image)
Alpha PeptidesAnalytical Formulations2026-04-2510 mg10.34 mg (103%)99.45%View
Bluebonnet PeptidesKrause Analytical2026-04-2110 mg9.95 mg (99%)99.9%View
Wolverine Peptides–2026-04-16––99.47%View
LN Peptides–2026-02-2630 mg––View (image)
Liyu DailyJanoshik2026-02-2310 mg––View (image)
Guangzhou AoyuFreedom Diagnostics2026-02-1410 mg12.3 mg (123%)99.912%View
LMRJanoshik2026-02-1310 mg––View (image)
Wolverine PeptidesJanoshik2026-02-1150 mg––View (image)
GLP Keep Body PeptideCOA concernsFreedom Diagnostics2025-12-2650 mg––View (image)
Licensed PeptidesVanguard Laboratory2025-12-1850 mg69.1 mg (138%)98.81%View
The Naughty NeedleFreedom Diagnostics2025-11-1010 mg10.03 mg (100%)99.883%View
Allen Biotechnology Co ABCJanoshik––––View (image)
Andy Peps StudioJanoshik–31 mg––View (image)
Apollo Peptide SciencesJanoshik–10 mg––View (image)
Atomik Labz––50 mg––View (image)
BarnJanoshik––––View (image)
BioPrecise LLCCOA concerns––10 mg––View (image)
Cocer PeptidesJanoshik–100 mg––View (image)
Cocer PeptidesJanoshik–10 mg––View (image)
Cocer PeptidesJanoshik–50 mg––View (image)
Cocer PeptidesJanoshik–30 mg––View (image)
Emlin BioScience Exchange––10 mg––View (image)
Forever Young PharmacyCOA concerns––25 mg26.02 mg (104%)99.8%View
Longevity Plan–––––View (image)
Nantong Guangyuan Chemical GYCJanoshik–50 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–50 mg––View (image)
Nantong Guangyuan Chemical GYCJanoshik–25 mg––View (image)
NextechLabsILS Laboratories––––View (image)
NextechLabsVanguard Laboratory–50 mg––View (image)
Noble DragonsJanoshik–10 mg––View (image)
Noble DragonsJanoshik–10 mg––View (image)
Novabio ResearchCOA concernsFreedom Diagnostics––––View (image)
Peptides 4 Research––10 mg––View (image)
Peptides 4 ResearchMDx BioAnalytical Laboratory–30 mg––View (image)
PeptiSlimJanoshik–10 mg––View (image)
Peptronix Bio PTBJanoshik–10 mg––View (image)
Platinum CryoChromate–10 mg––View (image)
Platinum CryoChromate–50 mg––View (image)
PugPepsCOA concerns––3110 mg––View (image)
PurePeptides––50 mg––View (image)
PurePeptides––10 mg––View (image)
Rhome Research––10 mg––View (image)
Royal PeptidesJanoshik–10 mg––View (image)
Shanghai Sigma Audley SSAJanoshik–50 mg––View (image)
Shanghai Sigma Audley SSAJanoshik–10 mg––View (image)
SPBJanoshik–10 mg––View (image)
Tianjin Finder Chemical TFCJanoshik––––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 SS-31 prices and lab-verified vendors.