MastoGen Rapid 100 – 100mg/ml – 5 amps of 1ml

International Warehouse 13

Chemical Name: 17beta-Hydroxy-2alpha-methyl-5alpha-androstan-3-one propionate.
Molecular Weight: 304.46 g/mol
Formula: C23H36O3
Anabolic Rating: 62-130
Androgenic Rating: 25-40

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This item: MastoGen Rapid 100 – 100mg/ml – 5 amps of 1ml

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Masteron propionate (also known as Drostanolone propionate) is a very popular steroid among bodybuilders and athletes. Drostanolone is a Dihydrotestosterone (DHT) derivative which has been modified for increased anabolic performance.

Note: There are two different variants of Masteron:

  • Drostanolone Enanthate : slow acting version of masteron (MastoGen 200)
  • Drostanolone Propionate : fast acting version of masteron (MastoGen Rapid 100)

MastoGen is a very popular anabolic steroid with moderate anabolic and low androgenic characteristics and it’s enhanced anabolic effects are increased by the addition of a methyl group at the carbon 2 position. In Bodybuilding it’s used in cutting cycles, hardening and drying muscles and improving tone and appearance and is even used as an aromatase inhibitor (AI). With its unique structural characteristics, it’s considered as an outstanding steroid.


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