Independent side-by-side comparison of Paradigm Peptides and Science.bio — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Paradigm Peptides holds the stronger independent lab grade (A vs ungraded); Science.bio carries more community reviews (620).
Every figure below is either measured by an independent laboratory or read from the vendor's own website, and the source is named against it. PeptideAtlas is not affiliated with either vendor.
| Attribute | Paradigm Peptides | Science.bio |
|---|---|---|
| Independent lab grade | A | Not graded |
| Community rating | 3.5/5 (390 reviews) | 4/5 (620 reviews) |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Year established | 2014 | 2016 |
Full profiles: Paradigm Peptides, Science.bio.
Related comparisons: Science.bio vs Arctic Peptide, Science.bio vs HK Peptides, Science.bio vs UWA Elite Peptides.