Axiolabs Decaplex Nandrolone Decanoate and Phenylpropionate

Decaplex is nandrolone from Axiolabs, a 19-nor injectable anabolic supplied as decanoate at 250 mg/ml and phenylpropionate at 100 mg/ml in 10 ml multi-dose vials. The 19-nor structure lacks the methyl group at the nineteenth carbon, which lowers its androgenic character and its rate of aromatisation compared with testosterone. The decanoate and phenylpropionate esters carry the same parent compound at two different release speeds.

The decanoate ester releases slowly, with a reference terminal half-life of six to twelve days, and holds steady levels over a long window, while the phenylpropionate ester acts and clears in a matter of days. Both carry the same parent compound, so the difference lies in release speed and in how frequently sampling is needed. The choice follows the observation window of the study. The phenylpropionate ester needs more frequent injections because it clears faster.

Nandrolone aromatises at a lower rate than testosterone because its 19-nor structure changes how the aromatase enzyme processes it. It is also a substrate for the enzyme that produces DHN, a weaker androgen. Progestogenic activity has been described, so prolactin read-outs can be relevant and individual response still varies. Water retention is described as moderate, lower than with testosterone but not absent.

Nandrolone suppresses natural testosterone production strongly. Reported effects include erectile dysfunction during use, raised prolactin in some cases, and the usual androgenic signs such as acne, alongside moderate water retention. Long-term cardiac and metabolic safety data for supraphysiological use do not exist, so nothing beyond short research courses is documented. Joint comfort is the effect most often reported in vendor material, usually after four to six weeks on a long ester.

Nandrolone and its metabolites are named on the WADA Prohibited List and are detectable in anti-doping testing. The decanoate ester carries one of the longest windows in the class, reported at twelve to eighteen months in urine, and a single injection can remain detectable for months. An athlete under anti-doping rules should treat the compound as prohibited. The phenylpropionate ester clears faster, but the parent metabolites still linger well beyond the last injection.

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 esters ship from the same Axiolabs line in plain packaging.