Summary Alpha Pharma Healthcare's Mastebolin is presented in 1-milliliter ampules, labeled to contain 100 milligrams of drostanolone propionate per milliliter. To validate these claims, AnabolicLab procured samples from a European-based internet source between October 7, 2015, and November 7, 2015, and submitted them to ChemTox SAS, an independent analytical laboratory specializing in anabolic steroid analysis. […]