Great Basin Bio Supply vs Paradigm Peptide
Independent side-by-side comparison across the 0 peptides both vendors sell. Composite scores, lab quality, and verified pricing.
Great Basin Bio Supply
Newer entrant. BPC-157 scores 8.5 across 2 tests (high purity 99.0–99.4%).
Great Basin Bio Supply full review →Paradigm Peptide
Top Retatrutide vendor by score (9.0 across 14 tests). Strong on metabolic peptides.
Paradigm Peptide full review →Side-by-side breakdown
| PEPTIDE | GREAT BASIN BIO SUPPLY | PARADIGM PEPTIDE | WINNER |
|---|---|---|---|
| BPC-157 |
8.5
A (2 tests)
|
—(not sold)
|
Great Basin Bio Supply only |
| Ipamorelin |
—(not sold)
|
9.0
A (6 tests)
|
Paradigm Peptide only |
| Tirzepatide |
—(not sold)
|
8.4
B+ (14 tests)
|
Paradigm Peptide only |
| Retatrutide |
—(not sold)
|
7.0
B (14 tests)
|
Paradigm Peptide only |
Which to choose
Across the 0 peptides both vendors sell, Great Basin Bio Supply scores higher on 0, Paradigm Peptide scores higher on 0, and 0 are within 0.3 points (effectively tied). Paradigm Peptide additionally sells Ipamorelin, Tirzepatide, Retatrutide; Great Basin Bio Supply does not. Great Basin Bio Supply additionally sells BPC-157; Paradigm Peptide does not.
Composite scores reflect lab quality, sentiment, COA transparency, reliability, and price. How we score.
Full profiles: Great Basin Bio Supply review · Paradigm Peptide review