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Drostanolone Propionate (Masteron) is an injectable anabolic/androgenic steroid. It is highly androgenic and mildly anabolic. Drostanolone does not aromatize into estrogen and has similar properties to dihydrotestosterone (DHT). Drostanolone was originally developed to be used as an anti-estrogenic compound for treating female breast cancer. Drostanolone is irreversibly metabolized by the enzyme 3a-hydroxysteroid-dehydrogenase into an inactive form of 2-methyl-5-androstan-3-ol-17-one and promotes hardness, lean mass and muscle preservation during diet and cutting cycles.

Masteron brings a high quality look to the muscle and should never be left out of your stack.


Packaging: Single vial with silicone stopper, containing 10ml of product.

Dosage & administration:

Half life

2 days

Adult dose (Male)

100-300mg EOD by intramuscular injection

Adult dose (Female)

25-50mg EOD by intramuscular injection

Average Cycle Length

4-12weeks following an EOD injection pattern

Anabolic #


Androgenic #



Estimated at 100%

CAS Name

17 beta-hydroxy-2 alpha-methyl-5 alpha-androstan-3-one

Master Prop 100mg

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