Great Basin Bio Supply vs Zhejiang Yichenkang
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 →Side-by-side breakdown
| PEPTIDE | GREAT BASIN BIO SUPPLY | ZHEJIANG YICHENKANG | WINNER |
|---|---|---|---|
| BPC-157 |
8.5
A (2 tests)
|
—(not sold)
|
Great Basin Bio Supply only |
| Tirzepatide |
—(not sold)
|
8.2
B+ (8 tests)
|
Zhejiang Yichenkang only |
Which to choose
Across the 0 peptides both vendors sell, Great Basin Bio Supply scores higher on 0, Zhejiang Yichenkang scores higher on 0, and 0 are within 0.3 points (effectively tied). Zhejiang Yichenkang additionally sells Tirzepatide; Great Basin Bio Supply does not. Great Basin Bio Supply additionally sells BPC-157; Zhejiang Yichenkang does not.
Composite scores reflect lab quality, sentiment, COA transparency, reliability, and price. How we score.
Full profiles: Great Basin Bio Supply review · Zhejiang Yichenkang review