Updated- upon receiving a new larger order of glutathione from them- what was shipped this time was NOT Fuan. I sent a vial of it off for testing. So GD frustrating. Like @randy always says- you have to beware. Maybe the new vials test ok, I don't know yet. It was also a bit of a back and forth to get them to ship a backordered portion of my original order. Said they thought they shipped it but did not not until I followed-up. This stuff should not happen with 30 vial orders.