Paradigm Peptide vs Zhejiang Yichenkang
Independent side-by-side comparison across the 1 peptides both vendors sell. Composite scores, lab quality, and verified pricing.
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 | PARADIGM PEPTIDE | ZHEJIANG YICHENKANG | WINNER |
|---|---|---|---|
| Ipamorelin |
9.0
A (6 tests)
|
—(not sold)
|
Paradigm Peptide only |
| Tirzepatide |
8.4
B+ (14 tests)
|
8.2
B+ (8 tests)
|
Paradigm Peptide |
| Retatrutide |
7.0
B (14 tests)
|
—(not sold)
|
Paradigm Peptide only |
Which to choose
Across the 1 peptides both vendors sell, Paradigm Peptide scores higher on 0, Zhejiang Yichenkang scores higher on 0, and 1 are within 0.3 points (effectively tied). Paradigm Peptide additionally sells Ipamorelin, Retatrutide; Zhejiang Yichenkang does not.
Either works for Tirzepatide — composite scores are within 0.3 points.
Composite scores reflect lab quality, sentiment, COA transparency, reliability, and price. How we score.
Full profiles: Paradigm Peptide review · Zhejiang Yichenkang review