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Head-to-Head · 2026

Modern Aminos vs PepChem

Independent side-by-side comparison — PVS scores, lab-verified purity, CoA coverage, and community sentiment. Rankings based solely on data; no paid placements, ever.

Higher PVS80PVS
Modern Aminos

International · 99.0% reported purity · 53+ CoAs

PepAssure VerifiedFull Modern Aminos report
33PVS
PepChem

Canada · 99.0% reported purity · 42+ CoAs

PepAssure VerifiedFull PepChem report

The short answer

Modern Aminos currently holds the higher Peptide Verification Score — 80/100 vs 33/100 for PepChem. The pillar breakdown below shows where each vendor earns (or loses) points across purity testing, CoA verification, community sentiment, transparency, and order experience — see the scoring methodology for how the PVS is computed.

Pillar-by-pillar breakdown

Modern Aminos (left) vs PepChem (right) — green marks the stronger pillar. “—” means insufficient data.

82Purity80
80CoA76
81Sentiment78
78Transparency—
80Experience65

At a glance

MetricModern AminosPepChem
PVS score80/100★33/100
Reported purity99.0%99.0%
CoAs on file53★42
Sentiment81%★78%
Last tested4 months ago4 months ago
LabJanoshikJanoshik
Price tier$$
CategoryTirzepatideSemax
Shipping5-7 days4-6 days
LocationInternationalCanada

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Rankings based solely on data. No paid placements — ever.