Sorry for the delay, I purchased 500g of green mang da. It's effective, just in a different way that I'm used to. This might be because of the strain I bought or maybe the different alkaloids in it since it was most likely grown and cultivated in a different region than I'm used to. The big difference is kratom in the US gives me energy and helps me focus. The stuff from Sweden made me more tired and wanting to chill. Both are good and potent, just in different ways. I personally prefer the Am