DIV is on point. There are definite differences. For one, many of the MX vet companies use the same "food grade" steroids as underground labs. Product made in Western countries for human use should include very purified raws (such as outlined by USP or BP standards). Both SHOULD be made via aseptic processing, or without environmental contamination. Both are probably fine in most cases, but the Roid Connaisseurs will typically prefer Western human gear over all else.