FAQ
Frequently asked questions
Short answers about ordering, certificates, shipping, and the terms of sale. Anything else — the live chat is open on every page.
A certificate of analysis (COA) is a lab report from an independent laboratory verifying a batch's purity and mass. When a batch we stock has been tested, we publish the certificate directly on the product page — press the View COA button to read it before you buy. Products without a published certificate simply don't show the button.