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GP Mast 200 is a synthetic derivative of dihydrotestosterone, displaying a potent androgenic effect that is responsible for increases in muscle density and hardness and a moderate anabolic effect that creates a positive nitrogen balance in humans and promotes protein synthesis. Since it is a derivative of dihydrotestosterone, dromastolone does not aromatize in any dosage and thus it cannot be converted into estrogen. Therefore, estrogen-related water retention is eliminated. GP Mast 200 combines the fast-acting propionate form with the longer acting enanthate form.
Each 10ml Vial contains :
50 mg/ml drostanolone propionate.
150 mg/ml drostanolone enanthate.