MZ Biolabs: certificates on file

MZ Biolabs is printed as the issuing laboratory on 33 of the 415 public certificates of analysis in the Peptide Ranking index, 8 percent of the register. The certificates were published by 4 research peptide suppliers: Biotech Peptides (15), Blue Sky Peptide (8), Peptide Pros (8) and Ascension Peptides (2). Evolve Peptides, PureRawz, Sports Technology Labs, Umbrella Labs also name the laboratory on their pages, but we could not open a certificate to record.

The documents cover 25 peptides, most often CJC-1295 + Ipamorelin blend (3), BPC-157 + TB-500 blend (3), TB-500 (2). Dates printed on the certificates run from 2021-07-01 to 2026-09-23. 33 of 33 print a lot number and 31 state a purity figure; the methods named are HPLC+MS. Lot numbers appear on certificates from Biotech Peptides, Blue Sky Peptide, Peptide Pros, Ascension Peptides.

A certificate describes the sample the laboratory received, not every unit a supplier later sells, so the lot number is what ties the document to a vial. We record what the documents print; we do not confirm them with the laboratory, and this page makes no statement about the laboratory's accreditation. To verify a certificate, quote its report number to the laboratory directly and check any accreditation claim on the accreditation body's register. Background: what ISO/IEC 17025 accreditation means, how to read a certificate, lot-level vs sample testing.