Core Peptides vs Simple Peptide
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
Core Peptides currently holds the higher Peptide Verification Score — 46/100 vs 1/100 for Simple Peptide. 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
Core Peptides (left) vs Simple Peptide (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 | Core Peptides | Simple Peptide |
|---|---|---|
| PVS score | 46/100★ | 1/100 |
| Reported purity | — | — |
| CoAs on file | 0 | 0 |
| Sentiment | — | — |
| Independent tests | 2 | 9★ |
| Labs | Finnrick | Finnrick, Freedom Diagnostics |
| Enforcement history | None on file | None on file |
| Last test date | 2026-10-01 (1 month ago) | 2026-10-20 (1 week ago) |
| Price tier | — | — |
| Category | GHK-Cu | Melanotan II |
| Shipping | 3-7 days | 3-7 days |
| Location | USA | UK |
Frequently asked
Which is better, Core Peptides or Simple Peptide?
Core Peptides has the higher Peptide Verification Score: 46/100 versus 1/100 for Simple Peptide. 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 Core Peptides or Simple Peptide have an enforcement record?
Core Peptides has no Enforcement Watch record; Simple Peptide has no Enforcement Watch record. The vendor page and Enforcement Watch link the source when one is on file.
How many independent tests do Core Peptides and Simple Peptide have?
Core Peptides: 2 independent lab tests on file (Finnrick or Janoshik). Simple Peptide: 9 independent lab tests on file (Finnrick or Janoshik).
More comparisons
Rankings based solely on data. No paid placements — ever.