What is Masteron P?
Masteron P (Drostanolone Propionate) is a DHT derivative with a short propionate ester. It is not primarily a mass-building steroid but popular for "hardening" in the cutting phase - it gives muscle a dry, defined look at low body fat. Historically drostanolone was even used for breast cancer because it acts anti-estrogenically.
This information is for research and educational purposes only. No medical advice.
How it works
As a DHT derivative masteron does not aromatize and even has a weakly anti-estrogenic effect (it competes at aromatase). That contributes to the "dry" look. The effect is mainly visible at already low body fat - at high body fat it does little visually.
Use and dosing
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What the research shows
Drostanolone has historical clinical use as an anti-estrogenic agent in breast cancer. The general AAS pharmacology (Kicman 2008, Hartgens & Kuipers 2004) describes the DHT-derivative properties.
Side effects
- Androgenic: as a DHT derivative - hair loss in predisposed individuals, acne.
- Lipids: can lower HDL.
- HPTA suppression: PCT topic.
- Barely any estrogen side effects, since no aromatization.
Storage
Store the oil solution at room temperature, protected from light - no fridge needed. Out of reach of children.