Aavant Research vs Zhejiang Yichenkang
Independent side-by-side comparison across the 1 peptides both vendors sell. Composite scores, lab quality, and verified pricing.
Aavant Research
A grades on Tirzepatide (9 tests, avg 8.7) and Semaglutide (11 tests). Tighter score consistency than top peers.
Aavant Research full review →Side-by-side breakdown
| PEPTIDE | AAVANT RESEARCH | ZHEJIANG YICHENKANG | WINNER |
|---|---|---|---|
| Tirzepatide |
8.7
B+ (9 tests)
|
8.2
B+ (8 tests)
|
Aavant Research |
| Retatrutide |
8.5
B+ (8 tests)
|
—(not sold)
|
Aavant Research only |
| Semaglutide |
8.5
B+ (11 tests)
|
—(not sold)
|
Aavant Research only |
| Ipamorelin |
8.2
B+ (5 tests)
|
—(not sold)
|
Aavant Research only |
Which to choose
Across the 1 peptides both vendors sell, Aavant Research scores higher on 1, Zhejiang Yichenkang scores higher on 0, and 0 are within 0.3 points (effectively tied). Aavant Research additionally sells Retatrutide, Semaglutide, Ipamorelin; Zhejiang Yichenkang does not.
Choose Aavant Research for: Tirzepatide.
Composite scores reflect lab quality, sentiment, COA transparency, reliability, and price. How we score.
Full profiles: Aavant Research review · Zhejiang Yichenkang review