Skip to main content

Essential cookies run the store. Analytics and our advertising pixels (TikTok, Snapchat and Reddit) load only if you accept. Our Google Ads tag loads either way, but stores nothing and identifies no one unless you accept; it reports completed orders at any setting. Our Meta Pixel loads either way and is not controlled by this choice; so does our Omnisend marketing script. Cookie Policy

VANTA LABS
← Research Library

Research Library

Purity & Third-Party Testing, Explained

Updated: 2026

Independent, third-party testing is the clearest signal of a trustworthy supplier.

Why third-party An in-house claim is just a claim. A COA from an independent lab is verifiable evidence of a batch's identity and purity.

What to look for Look for the testing method (e.g., HPLC for purity, MS for identity), the measured result, and a batch number that matches your material.

Our standard Where a batch has been tested, we publish its COA so you can match it to your lot — documentation rather than marketing claims.

For laboratory research use only. Not for human or animal use. This content is educational and does not constitute medical advice.
vault