buying supplements in SZ

Just wondering where everyone buys their supplements in SZ. IS there stores like GNC and all. Im looking for protein powder, bulk BCAA powder, fish oils, esterfied creatine, and citrulline malate powder, . Funny thing is all the store that carry it in Canada and the US all get it from China. I think i would have a problem trying to gettin shipped back to China though. LOL

thanks