Oils

Masteron Propionate

Name: Masteron Propionate
Brand: Quanta Pharmaceuticals

Drostanolone Propionate, a fast-acting DHT-derived hardening compound verified at 109.22mg/ml.

Masteron Propionate (Drostanolone Propionate) is a fast-acting DHT-derived injectable studied for the same hardening and anti-oestrogenic effects as its enanthate counterpart, but with a much shorter 2-3 day half-life. Each 10ml vial is supplied at 100mg/ml. Independent lab testing confirmed dosing at 109.22mg/ml for this batch, slightly above the 100mg/ml label claim.

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Independent laboratory documentation

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Certificate of Analysis

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Specifications

Vial Size

10ml

Concentration

100mg/ml

Half-Life

2-3 days

Administration

Intramuscular

Research Benefits

Hardening effect — Studied for a dense, grainy appearance valued in contest-preparation research.
No aromatisation — A DHT derivative that cannot convert to oestrogen.
Mild anti-oestrogenic activity — Investigated for a secondary aromatase-inhibiting effect.
Fast clearance — A short ester allows rapid onset and quick clearance if a protocol changes.
Verified potency — Independently confirmed at 109.22mg/ml against a 100mg/ml label.

How It Works

Drostanolone Propionate is dihydrotestosterone (DHT) modified with a methyl group at carbon 2, increasing its anabolic activity relative to unmodified DHT while retaining androgenic character. Because it cannot aromatise, research reports no oestrogen-related water retention.

The short propionate ester gives a 2-3 day half-life, requiring more frequent injection than the enanthate version but offering faster onset and clearance — a property often studied in the final weeks of a cutting-focused research protocol.

⚠ For Research Use Only

This product is supplied strictly for in-vitro laboratory and preclinical research use. It is not a drug, food, dietary supplement, or cosmetic, and is not intended for human or animal consumption, diagnosis, treatment, or prevention of any disease. Masteron Propionate must be handled only by qualified individuals trained in proper laboratory safety procedures.

By purchasing, the buyer confirms this product is being acquired for legitimate research purposes and assumes full responsibility for its handling, storage, and use in compliance with all applicable local, national, and international laws.