Vendors

Ranked by average test purity and identity-confirmation rate across every lab result we've tracked (vendor COAs and independent tests alike). Vendors need at least 3 results before we rank them.

BFF

8 flagged batches

75 batches97 tests100% identity pass rate

99.8%

avg purity

M-Peptide Science · M-Peptides Science

1 flagged batch

63 batches55 tests100% identity pass rate

99.7%

avg purity

GYC/GGpeps · GYC Peptides

4 flagged batches

76 batches86 tests95% identity pass rate

99.7%

avg purity

SPB · Shanghai Synthetic Peptide Bio

9 flagged batches

165 batches75 tests62% identity pass rate

99.7%

avg purity

CHP · Champion Peptide

33 batches33 tests100% identity pass rate

99.7%

avg purity

AURORA · Aurora Biotechnology

6 flagged batches

14 batches31 tests100% identity pass rate

99.7%

avg purity

Nexaph

56 batches47 tests100% identity pass rate

99.6%

avg purity

MED · Shenzhen Maide Technology

18 batches23 tests100% identity pass rate

99.6%

avg purity

JEEP · Guangzhou Jeep Biotechnology

13 flagged batches

61 batches120 tests88% identity pass rate

99.6%

avg purity

Aavant

56 batches24 tests100% identity pass rate

99.6%

avg purity

QST · Qingdao Saber Technology

2 flagged batches

14 batches10 tests100% identity pass rate

99.5%

avg purity

FSD · Shanghai Fushida Chemical

5 flagged batches

6 batches17 tests100% identity pass rate

99.5%

avg purity

Barn

1 flagged batch

27 batches44 tests100% identity pass rate

99.5%

avg purity

XTP · Xi'an Taiye Chemical Co.

1 flagged batch

23 batches16 tests67% identity pass rate

99.4%

avg purity

Uther · Uther Pharmaceutical

16 flagged batches

833 batches958 tests96% identity pass rate

99.3%

avg purity

PGB

1 flagged batch

54 batches14 tests100% identity pass rate

99.3%

avg purity

PPHK · Peptide Pole HongKong

19 batches32 tests63% identity pass rate

99.2%

avg purity

APS · Andy Peps Studio

4 flagged batches

137 batches154 tests82% identity pass rate

99.1%

avg purity

Lobster

3 flagged batches

23 batches32 tests95% identity pass rate

98.7%

avg purity

PTB · Peptronix Biotech

5 batches5 tests100% identity pass rate

98.0%

avg purity

Known, nothing tracked yet

Sellers the community discusses that we hold no batches or results for. Named here so a search for one does not come back empty.