You shouldn’t have to trust me.
You should be able to check.

Most suppliers in this market ask you to take their word for it — a purity number on a product page, no lot, no laboratory named, no way to check it. Synthrex is one person. I dropped out of school to build it because I got tired of buying research material I could not verify.

Certificates for 30 independently tested lots are published at /coa — searchable by batch number. Published as issued. The commissioning party’s details are redacted; everything about the material is shown.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.