Evidence threshold
At least four core fields must be supported by records reviewed by PDD—not merely supplier claims.
Transparent documentation coverage
Suppliers with the most reviewable public documentation
These suppliers have public records supporting at least four of PDD’s six core documentation fields. This is a documentation filter—not a “vetted,” safety, quality, or suitability designation.
Commercially neutral
Affiliate and non-affiliate suppliers use the same threshold. Ties are alphabetical.
Narrow meaning
Coverage means records were located for specific fields. It is not a guarantee of safety, efficacy, sterility, authenticity, or suitability.
Core fields: public COA access, lot traceability, laboratory provenance, chromatographic purity, molecular identity, and measured quantity. Supplier-reported or unresolved fields do not count toward the threshold.
6/6 core fields documented
Affiliate relationshipAscend Science
Ascend Science publishes a searchable no-login archive with 149 reports across 54 products. Sampled current records connect product and strength to a lot, test date, named laboratory, HPLC purity, LC-MS identity, measured content, heavy-metals, sterility, endotoxin, and fentanyl results. Laboratory accreditation and method scope remain appropriate targets for independent verification.
Read the evidence ledger6/6 core fields documented
No active affiliate linkChameleon Peptides
Historical review retained for transparency. Chameleon previously published batch-specific third-party records, but its storefront is no longer usable and the supplier is reported closed. PDD has not reassigned this profile or its historical evidence to any other company.
Read the evidence ledger6/6 core fields documented
Affiliate relationshipElite Research Labs
Elite Research Labs publishes a no-login directory of current batch certificates and says each vial carries a QR code linking to the directory. The sampled Freedom Diagnostics record identifies Ipamorelin 10mg lot ERL-2501-B104-T, accession and search-code identifiers, a September 8, 2026 report date, LC-MS identity, 99.88% HPLC-UV purity, and 10.03mg net content. The sampled analytical record does not establish sterility, and PDD did not infer catalog-wide coverage from one report.
Read the evidence ledger6/6 core fields documented
No active affiliate linkModified Aminos
Modified Aminos publishes a searchable, no-login COA library with lot identifiers, test dates, named issuing laboratories, downloadable reports, and product links. Sampled records report chromatographic purity, identity, measured quantity, endotoxin, heavy metals, and microbiological results. These findings apply to the sampled public records and do not establish catalog-wide coverage or laboratory accreditation.
Read the evidence ledger6/6 core fields documented
No active affiliate linkPrime Lab Peptides
Prime Lab publishes product and lot identifiers with linked third-party HPLC, LC-MS, and net-content records. Sterility and endotoxin coverage were not established across sampled products.
Read the evidence ledger6/6 core fields documented
No active affiliate linkTransition Biotech
Transition Biotech is a veteran-owned research-materials supplier headquartered in Tampa, Florida, with refreshed branding, U.S. and international shipping information, and a current 11-item public catalog. PDD tracks standard single-vial USD prices separately from the supplier's build-your-own bundle and wholesale purchasing paths because those options have different quantity and eligibility conditions. Its public COA library identifies products, labeled quantities, batches, report numbers, certification dates, and Kovera Labs as the issuing laboratory. The sampled BPC-157 report includes RP-HPLC purity, LC-MS identity, measured content, endotoxin, microbial sterility, pH, and heavy-metal results. Uploaded reports do not establish which batch is currently shipping, so researchers must match the report to the received label. PDD does not infer compound identities from internal catalog codes such as TBT-2TZ or TBT-3RT.
Read the evidence ledger5/6 core fields documented
No active affiliate linkAvelqor Labs
Avelqor Labs is a Swiss-dispatched research-material storefront that also maintains a separately presented sports-nutrition catalogue. Its public trust center distinguishes independent laboratory reports, supplier documentation, pending batch linkage, and testing that has not yet been completed. Public records describe a Freedom Diagnostics Retatrutide report covering LC-MS identity, HPLC-UV purity, net content, endotoxin, and microbial PCR, plus supplier documentation for GHK-Cu and Retatrutide. Avelqor expressly states that none of these records proves applicability to current inventory until the physical lot is matched, and that its first Avelqor-linked independent test remains pending. The site also discloses that the business remains pre-incorporation following approval of the founder's Estonian e-Residency application.
Read the evidence ledger5/6 core fields documented
No active affiliate linkEppix Labs
Eppix Labs publishes searchable batch records that separate chromatographic purity from measured mass and link to the issuing laboratory portal. Contamination testing and the editorial compatibility of its calculator content remain unresolved.
Read the evidence ledger5/6 core fields documented
Affiliate relationshipPS Peptides
PS Peptides publishes a large, searchable certificate library with product- and strength-specific records. Sampled current BPC-157 records identify the laboratory, test ID, supplier batch ID, HPLC purity, measured mass, heavy-metals screen, endotoxin result, sterility result, and fentanyl screen. Molecular-identity detail and laboratory accreditation still require independent verification beyond the supplier's presentation.
Read the evidence ledger4/6 core fields documented
Affiliate relationshipAero Peptides
Aero Peptides now maintains a public lab-results area and publishes a detailed testing standard covering identity, purity, endotoxin, solvents, and water. Several conclusions remain supplier-reported until a current batch report and laboratory record are preserved.
Read the evidence ledger4/6 core fields documented
No active affiliate linkAmerican Peptides
American Peptides publishes a searchable COA library and states that every lot receives independent HPLC purity and mass-spectrometry identity testing. The reviewed public records support lot-level documentation access; measured quantity, sterility, and endotoxin coverage remain unresolved.
Read the evidence ledger4/6 core fields documented
No active affiliate linkCerta Peptides
Certa provides a public COA vault and links to third-party verification records. Sampled public materials support product-level testing visibility, while consistent current-vial lot matching and contamination-panel coverage remain follow-up items.
Read the evidence ledger4/6 core fields documented
No active affiliate linkExcalibur Peptides
Excalibur exposes a public certificate database and describes lot-specific HPLC purity and mass-spectrometry identity records. Quantity and contamination-testing coverage vary or were not established across the catalog.
Read the evidence ledger4/6 core fields documented
Affiliate relationshipOMNI Peptides
OMNI Peptides publishes exact product pages with batch tables for several transparent-name catalog items. Sampled BPC-157 and KPV pages identified Accumark Labs, lot identifiers, reported purity values, and certificate downloads. PDD did not infer compound identities from OMNI's opaque OP-prefixed product codes, and catalog-wide analytical or contamination coverage remains unresolved beyond reports that can be inspected directly.
Read the evidence ledger4/6 core fields documented
No active affiliate linkPure US Peptide
Pure U.S. Peptides states that lot-matched certificates appear on product pages and that every batch receives HPLC purity and mass-spectrometry identity testing. Quantity and contamination panels were not established in the sampled public record.
Read the evidence ledgerThe collection changes when reviewed public records change. A supplier can be added or removed without regard to commercial relationship. See the full methodology and affiliate disclosures.