Vendor Comparison
CertaPeptides vs Particle Peptides
An independent side-by-side of two COA-verified research-peptide vendors – verification, purity, shipping and live price per mg on the 12 products they both carry. For laboratory research use only.
AttributeCertaPeptidesParticle Peptides
Purity score—98.79 %from 21 batches
Ships to2 regions4 regions
Shipping—$15.04
Founded2026—
COA-verified
Price per mg on shared products
PeptideCertaPeptidesParticle Peptides
BPC-157 10mg$6.36$6.02
DSIP 5mg$6.48$4.70
Epitalon 10mg$3.47$4.33
GHK-Cu 100mg$0.81$1.28
KPV 10mg$5.44$6.40
MOTS-c 10mg$2.99$4.52
MT-2 (Melanotan 2 Acetate) 10mg$4.05$4.52
Retatrutide 10mg$6.39$14.11
Selank 10mg$4.24$3.58
Semax 10mg$4.24$3.76
SS-31 10mg$3.93$3.67
Thymosin Alpha-1 10mg$9.26$9.41