Supplier Overview
Who holds up under independent testing?
Aggregated from all public characterizations. Suppliers need at least 2 independent results to appear. Pass rate counts Confirmed & Likely confirmed verdicts.
Peptide Sciences26 characterizations
26× Confirmed
100%
pass rate
avg 97.7% purity
Swiss Chems16 characterizations
10× Confirmed6× Likely confirmed
100%
pass rate
avg 94.1% purity
Receptorchem14 characterizations
11× Confirmed3× Likely confirmed
100%
pass rate
avg 95.2% purity
Core Peptides8 characterizations
8× Confirmed
100%
pass rate
avg 97.0% purity
Cosmic Nootropics7 characterizations
6× Confirmed1× Likely confirmed
100%
pass rate
avg 97.4% purity
Blue Sky Peptide6 characterizations
5× Confirmed1× Likely confirmed
100%
pass rate
avg 95.5% purity
Umbrella Labs6 characterizations
4× Confirmed2× Likely confirmed
100%
pass rate
avg 94.1% purity
Behemoth Labz5 characterizations
4× Confirmed1× Likely confirmed
100%
pass rate
avg 96.3% purity
PureRawz2 characterizations
2× Confirmed
100%
pass rate
avg 96.3% purity
Helvetic Research10 characterizations
7× Confirmed2× Likely confirmed1× Inconclusive
90%
pass rate
avg 90.3% purity
Alpine Peptides11 characterizations
9× Confirmed2× Inconclusive
82%
pass rate
avg 92.5% purity
Peptide Harbor9 characterizations
5× Confirmed1× Likely confirmed1× Inconclusive2× Wrong compound
67%
pass rate
avg 92.0% purity
Summit Labs8 characterizations
3× Confirmed2× Likely confirmed2× Inconclusive1× Wrong compound
63%
pass rate
avg 86.2% purity
Amino Asylum19 characterizations
10× Confirmed1× Likely confirmed2× Inconclusive4× Wrong compound2× Failed
58%
pass rate
avg 95.5% purity
Limitless Life Nootropics17 characterizations
6× Confirmed2× Likely confirmed5× Inconclusive3× Wrong compound1× Failed
47%
pass rate
avg 94.8% purity
Northstar Biologics10 characterizations
2× Likely confirmed1× Inconclusive6× Wrong compound1× Failed
20%
pass rate
avg 80.5% purity
Only publicly shared characterizations are included. Results are submitted by private end users, never suppliers.