Mast e200
Masteron Enanthate, which should be more properly known as Drostanolone Enanthate, is a long estered variant of Drostanolone. Drostanolone was originally marketed on the prescription drug market under the brand name Masteron, which was Drostanolone Propionate (a short estered variant of Drostalonone.
Mast p100
Drostanolone Propionate is a dihydrotestosterone (DHT) derived anabolic steroid. Specifically, Masteron is the DHT hormone that has been structurally altered by the addition of a methyl group at the carbon 2 position, This protects the hormone from the metabolic breakdown by the 3-hydroxysteroid dehydrogenase enzyme, which is found in the skeletal muscle. It also greatly increases the hormone’s anabolic nature.