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Head-to-Head · 2026

Peptide Shop vs Sigma Peptides

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 PVS44PVS
Peptide Shop

USA

Full Peptide Shop report
43PVS
Sigma Peptides

UK

Full Sigma Peptides report

The short answer

Peptide Shop currently holds the higher Peptide Verification Score — 44/100 vs 43/100 for Sigma Peptides. 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

Peptide Shop (left) vs Sigma Peptides (right) — green marks the stronger pillar. “—” means no data: that pillar counts as 0 in the vendor's PVS. Its published weight stays in the total and is not given to the pillars that were measured.

74Purity72
74CoA72
—Sentiment—
—Transparency—
—Experience—

At a glance

MetricPeptide ShopSigma Peptides
PVS score44/100★43/100
Reported purity——
CoAs on file00
Sentiment——
Last tested3 months ago8 months ago
Lab——
Price tier——
CategoryDSIPDSIP
Shipping5-7 days5-7 days
LocationUSAUK

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