Science.bio vs Swiss Chems
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
Swiss Chems currently holds the higher Peptide Verification Score — 41/100 vs 15/100 for Science.bio. 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
Science.bio (left) vs Swiss Chems (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 | Science.bio | Swiss Chems |
|---|---|---|
| PVS score | 15/100 | 41/100★ |
| Reported purity | — | — |
| CoAs on file | 0 | 0 |
| Sentiment | — | — |
| Independent tests | 0 | 3★ |
| Labs | — | Finnrick, Janoshik |
| Enforcement history | Shut down | FDA/DOJ action |
| Last test date | — | 2026-06-25 (4 months ago) |
| Price tier | — | — |
| Category | Tirzepatide | DSIP |
| Shipping | 5-7 days | 5-7 days |
| Location | USA | UK |
Closed or enforcement record
- Science.bio alternatives — what Enforcement Watch has on file, and ranked replacements.
Frequently asked
Which is better, Science.bio or Swiss Chems?
Swiss Chems has the higher Peptide Verification Score: 41/100 versus 15/100 for Science.bio. 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 Science.bio or Swiss Chems have an enforcement record?
Science.bio is listed as Shut down; Swiss Chems is listed as FDA/DOJ action. The vendor page and Enforcement Watch link the source when one is on file.
How many independent tests do Science.bio and Swiss Chems have?
Science.bio: no Finnrick or Janoshik tests on file. Swiss Chems: 3 independent lab tests on file (Finnrick or Janoshik).
More comparisons
Rankings based solely on data. No paid placements — ever.