Modern Aminos vs Peptide Sciences
Side-by-side vendor verification — Peptide Verification Score, independent tests, labs on file, enforcement history, and last test date. Research use only. No paid placements.
The short answer
Modern Aminos currently holds the higher Peptide Verification Score — 55/100 vs 15/100 for Peptide Sciences. 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 Peptide Sciences (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.
At a glance
| Metric | Modern Aminos | Peptide Sciences |
|---|---|---|
| PVS score | 55/100★ | 15/100 |
| Reported purity | — | — |
| CoAs on file | 0 | 0 |
| Sentiment | — | — |
| Independent tests | 1 | 10★ |
| Labs | Finnrick, Freedom Diagnostics, Kovera Labs | Finnrick |
| Enforcement history | None on file | Shut down |
| Last test date | 2026-07-20 (3 months ago) | 2026-07-20 (3 months ago) |
| Price tier | — | — |
| Category | Tirzepatide | Selank |
| Shipping | 5-7 days | 3-5 days |
| Location | International | International |
Closed or enforcement record
- Peptide Sciences alternatives — what Enforcement Watch has on file, and ranked replacements.
Frequently asked
Which is better, Modern Aminos or Peptide Sciences?
Modern Aminos has the higher Peptide Verification Score: 55/100 versus 15/100 for Peptide Sciences. A score of 0 means PepAssure has not published one. This comparison is for research-use vendor verification, not a recommendation to buy. Rankings are not paid placements.
Does Modern Aminos or Peptide Sciences have an enforcement record?
Modern Aminos has no Enforcement Watch record; Peptide Sciences is listed as Shut down. The vendor page and Enforcement Watch link the source when one is on file.
How many independent tests do Modern Aminos and Peptide Sciences have?
Modern Aminos: 1 independent lab test on file (Finnrick or Janoshik). Peptide Sciences: 10 independent lab tests on file (Finnrick or Janoshik).
More comparisons
Rankings based solely on data. No paid placements — ever.