Finnrick-Audited Peptide Vendor Directory

Verified Peptide Vendors

Independent purity verification, HPLC batch test audits, and objective transparency ratings powered by the open-source Finnrick analytical algorithm.

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RECOMMENDEDFeatured PartnerResearch suppliers

Premier U.S. research peptide provider known for batch-level Janoshik analytical testing, guaranteed >99% purity, sterile lyophilization, and expedited cold-chain shipping.

HPLC VerifiedJanoshik TestedFast US Shipping>99% Purity+2 more
Lab Audits48
Tracked8 Peptides
Last Audit2026-08-02
RECOMMENDEDResearch suppliers
Peptide Partners Logo
Peptide Partnerspeptidepartners.com
A92/100

Reliable US-based research chemical vendor with routine MZ Biolabs third-party testing, transparent lot numbers, and fast domestic fulfillment from Texas.

MZ Biolabs TestedUS DomesticBatch COAsCredit Cards Accepted+1 more
Lab Audits24
Tracked5 Peptides
Last Audit2026-07-18
Research suppliers
Paradigm Peptides Logo
Paradigm Peptidesparadigmpeptides.com
B84/100

Long-standing research supply brand offering peptide vials, SARMs, and laboratory chemicals with Chromate Science lab verification and budget-conscious pricing.

Chromate LabsEstablished 2019Domestic WarehouseEconomy Pricing
Lab Audits15
Tracked4 Peptides
Last Audit2026-05-18
International suppliers
Swiss Chems Logo
Swiss Chemsswisschems.is
B82/100

International supplier offering worldwide discrete delivery, crypto payments, and Janoshik-tested peptides, nootropics, and anti-aging formulations.

Janoshik TestedWorldwide ShippingCrypto 10% OffNootropics & Peptides
Lab Audits12
Tracked4 Peptides
Last Audit2026-05-15
Pending ReviewResearch suppliers
BioTech Peptides Logo
BioTech Peptidesbiotechpeptides.com
Pending68/100

New market entrant offering aggressive low-cost research peptides. Application and preliminary laboratory documentation are currently undergoing editorial and blind re-test audit.

New EntrantPending AuditLow CostProvisional COA
Lab Audits2
Tracked3 Peptides
Last Audit2026-02-18
Transparent 3-Pillar Methodology

How the Finnrick Quality Score Evaluates Vendors

We don't accept payment for score boosts or letter grade upgrades. Every score is computed mathematically from verified third-party laboratory reports.

1. Lab Quality & Purity75% Weight

Independent HPLC purity % (target ≥99.0%), Mass Spectrometry identity match, and heavy metal/endotoxin safety screening from certified labs like Janoshik Analytical.

2. Batch Consistency20% Weight

Historical testing frequency across sequential lots, variance in fill volume, and consistent purity results across multiple peptide categories over 12 months.

3. Testing Recency5% Weight

Freshness of laboratory verification. Batches tested within 30 days receive full points, with progressive decay for unverified aging inventory.

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