What is Third-party tested?

Third-party tested means a brand states that an independent laboratory checked its products, rather than the brand testing in its own lab. Buyers who want a purity claim backed by someone else look for this line. AG1 says yes, and so do Arrival Creatine and Beautycore. Apohealth and Biocosmos.mk say no, which means they do not state independent lab testing. A missing claim is not a failed test, but it is a gap in what the brand has published, so weigh it against the certification list.