Summary Gen-Shi Laboratories Masteron 500 is presented in a 5-milliliter re-usable vial, labeled to contain 100 milligrams of drostanolone propionate per milliliter. To assess the product's accuracy and quality, samples of this product were procured by AnabolicLab from a European-based internet source between October 7, 2015, and November 7, 2015. The analysis was funded by […]