Is it the Fuan Pharmaceuticals brand I’m thinking of? If so, I know K4L resells that brand and it tested at 1621mg per vial, so quite a bit over, which I’m more than fine with. I tried buying a few kits from Korea, but unfortunately my package was stopped in customs. A lot of those Korea beauty sites are under the customs microscope for shipping Botox to the U.S..
I was planning on trying 4ml a vial to get me to around 400mg/ml. I’ve done 300mg/ml comfortable and know there’s people out there who go quite a bit higher so going to give it a try.