Drostanolone Propionate (Masteron) ZPHC 30 ml

Drostanolone propionate, commonly known as Masteron, is an injectable anabolic steroid derived from dihydrotestosterone (DHT). The ZPHC (Zhengzhou Pharmaceutical Co.) version is used mainly in bodybuilding and athletic preparation phases where muscle hardness, definition, and a dry appearance are desired. It does not cause water retention, which makes it popular during cutting cycles.

Steroid profile

Drostanolone propionate has moderate anabolic activity (around 62% of testosterone) and relatively low androgenic activity (about 25%). It does not aromatize into estrogen and has no hepatotoxic effects at recommended injectable doses. Because it is a propionate ester, its duration of action is short, typically around 2–3 days, requiring frequent injections to maintain stable levels. Detection time in the body may last up to about 3 months.

Effects and benefits

This compound is known for improving muscle density, hardness, and overall definition. It helps create a lean, dry look by minimizing water retention and can also contribute to a more vascular appearance. Many users report better muscle “tightness” and preservation of strength during calorie deficits. It may also indirectly reduce estrogenic effects due to its anti-estrogenic properties.

Usage overview

Drostanolone propionate is typically used in short cycles of about 6–8 weeks. Because of its short half-life, injections are commonly administered every other day or every two days. Typical dosing for men ranges from 300–500 mg per week, while female use is significantly lower and much more limited due to higher sensitivity to androgenic effects.

It is primarily used during cutting phases in bodybuilding, especially in contest preparation. It is also used in physique-focused sports where a lean, dry appearance is important. In performance sports, it may be used to maintain strength while reducing body fat and avoiding weight gain from water retention.

Stacking combinations

Masteron is often combined with compounds such as testosterone propionate to maintain hormonal balance during a cycle. It may also be stacked with trenbolone, stanozolol, or growth hormone depending on goals such as fat loss, muscle preservation, or improved conditioning. Peptides are sometimes included to support recovery.

Side effects

Although it does not aromatize, drostanolone can still produce androgenic side effects such as acne, oily skin, and hair thinning in genetically predisposed individuals. It may suppress natural testosterone production and negatively affect cholesterol levels, particularly by lowering HDL. Some users may also experience increased irritability or mood changes. Post-cycle therapy is commonly used after a cycle to help restore natural hormone production and overall hormonal balance.