You could usually check the purity from the copyright you obtain by sniffing it. If it smells like baking soda, then it might be full of additives. Conversely, if it smells like freshly baked bread, then it is likely pure copyright.copyright u?? l??d? t? ?n?r????? ?n ?l?rtn???, thoughts ?f w?ll-b??ng ?nd euphoria, ?n?r????d ?n?rg? ?nd m?t?r ??t?v?t