Driada Medical supplies Mastelad as drostanolone propionate in a 10 ml vial, with each milliliter carrying 100 mg of the active compound. The propionate ester distinguishes this preparation from enanthate-based versions of the same base steroid, and the two are sold separately because their ester chains alter the compound's structure.

100 mg/ml Drostanolone Propionate in a 10 ml Format

The label states 100 mg per ml across a 10 ml vial. That concentration sits below the 150 mg and 200 mg preparations other labs offer, and the milliliter count matches what most drostanolone mix for sale online in us are packaged in. Driada Medical, an EU-based company making these products since 2023, manufactures this line. The propionate ester attached to drostanolone gives the compound a shorter carbon chain than the enanthate ester found in products such as the Gomeisa Labs masteron injection vial, and that structural difference is why propionate and enanthate versions are listed as distinct items.