Axiolabs Mastaplex Drostanolone Propionate and Enanthate Vials

Mastaplex is drostanolone from Axiolabs, a DHT-derived injectable anabolic supplied as propionate at 100 mg/ml and enanthate at 200 mg/ml in 10 ml multi-dose vials. Drostanolone is a 2-alpha-methylated compound that does not aromatise, so it does not convert to estrogen at any of the ester lengths offered. Both vials share the same 10 ml pack size and the same Axiolabs production line.

The propionate ester clears in about two days and suits short windows or frequent sampling, while the enanthate ester releases slowly, with a reference half-life of seven to ten days, and holds steadier levels between injections. Both esters carry the same parent compound, so the difference is release speed rather than effect. A propionate arm is usually sampled more often because levels peak and fall inside a week.

Because drostanolone does not aromatise to estrogen, it is not associated with the water retention that follows estrogenic compounds. That is a consequence of its structure rather than a safety claim. Androgenic effects are expected because the compound is DHT-based, and it is not a compound that builds muscle efficiently on its own. Any change in body composition in a study is tracked against diet and training, not attributed to the compound alone.

Any exogenous anabolic can suppress natural testosterone production, and drostanolone is no exception even though it does not aromatise to estrogen. Recovery planning with the standard post-cycle references belongs to the research design, and lipid and gonadal read-outs are the usual follow-up markers. Human recovery timelines for this compound are not well documented. A testosterone base is the usual reference arm when suppression is part of the design.

Keep the sealed vial at room temperature, protected from light and away from freezing, since a cold oil depot can cloud. Inspect the solution for particles or separation before use and discard a vial that shows either. Do not shake the vial, and follow the handling rules of your own laboratory. A vial that has been frozen and thawed can separate, so keep it above freezing.

Both ester variants are listed on this page as research material with a U.S. domestic route and an international option selected at checkout. Shipping runs about 35 dollars, orders are handled within one to two business days, and stock and pricing are shown in the options above. Nothing on this page is a dosing guide. Both strengths ship in discreet plain packaging from the same Axiolabs line.