Chemyo vs Science.bio
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
Science.bio currently holds the higher Peptide Verification Score — 15/100 vs 0/100 for Chemyo. 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
Chemyo (left) vs Science.bio (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 | Chemyo | Science.bio |
|---|---|---|
| PVS score | 0/100 | 15/100★ |
| Reported purity | — | — |
| CoAs on file | 0 | 0 |
| Sentiment | — | — |
| Independent tests | 0 | 0 |
| Labs | — | — |
| Enforcement history | None on file | Shut down |
| Last test date | 2025-10-23 (12 months ago) | — |
| Price tier | — | — |
| Category | AOD-9604 | Tirzepatide |
| Shipping | 3-7 days | 5-7 days |
| Location | International | USA |
Closed or enforcement record
- Science.bio alternatives — what Enforcement Watch has on file, and ranked replacements.
Frequently asked
Which is better, Chemyo or Science.bio?
Science.bio has the higher Peptide Verification Score: 15/100 versus 0/100 for Chemyo. 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 Chemyo or Science.bio have an enforcement record?
Chemyo has no Enforcement Watch record; Science.bio is listed as Shut down. The vendor page and Enforcement Watch link the source when one is on file.
How many independent tests do Chemyo and Science.bio have?
Chemyo: no Finnrick or Janoshik tests on file. Science.bio: no Finnrick or Janoshik tests on file.
More comparisons
Rankings based solely on data. No paid placements — ever.