Masteron, or Drostanolone propionate is a DHT derived steroid, modified to increase its anabolic nature. It has strong anti-estrogenic properties, so much so that it can actually act as an anti-estrogen. It is traditionally used in cutting cycles where muscle wastage needs to be minimized and a look of dryness and hardness is required. Popular manufacturers include MyoGen (MastoGen), Cooper Pharma (Masterbolic), Eminence (Drostoprime).
What to expect of Masteron?
Mild estrogen suppression (not as powerful as a SERM, but still powerful enough to assist)
Respectable increases in strength (masteron is well known for this)