Vendor Comparison
CertaPeptides vs Peak Peptide
An independent side-by-side of two COA-verified research-peptide vendors – verification, purity, shipping and live price per mg on the 6 products they both carry. For laboratory research use only.
AttributeCertaPeptidesPeak Peptide
Ships to2 regions1 region
Shipping—$4.05
Discount—15%
Founded2026—
COA-verified
Price per mg on shared products
PeptideCertaPeptidesPeak Peptide
BPC-157 10mg$6.36$5.20
MOTS-c 10mg$2.99$3.39
MT-2 (Melanotan 2 Acetate) 10mg$4.05$4.58
Retatrutide 10mg$6.39$7.34
Selank 10mg$4.24$5.51
Semax 10mg$4.24$4.58