Human grade. You know you have what you want at a certain proven concentration. No UG lab is spotless: including BL, GTP, Spectro, . . . The time always comes when for one reason or another corners are cut. That NEVER happens with a real pharmaceutical company as production is carefully regulated. Also, for say test, deca, etc. human grade is only 20-30% more than a good UG from most sources. This is really very affordable for most people. The only UG stuff I use is eq, tren, etc, i.e. stuff not available human grade.