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Head-to-Head · 2026
Marek Health vs Peptide Co
Independent side-by-side comparison — PVS scores, lab-verified purity, CoA coverage, and community sentiment. Rankings based solely on data; no paid placements, ever.
The short answer
Marek Health and Peptide Co are currently tied at 51/100. 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
Marek Health (left) vs Peptide Co (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.
85Purity85
85CoA85
—Sentiment—
—Transparency—
—Experience—
At a glance
| Metric | Marek Health | Peptide Co |
|---|---|---|
| PVS score | 51/100 | 51/100 |
| Reported purity | — | — |
| CoAs on file | 0 | 0 |
| Sentiment | — | — |
| Last tested | 6 months ago | 3 months ago |
| Lab | — | — |
| Price tier | — | — |
| Category | Epithalon | NAD+ |
| Shipping | 3-7 days | 5-7 days |
| Location | USA | Canada |
More comparisons
Rankings based solely on data. No paid placements — ever.