Gomeisa Labs Masteron Propionate supplies drostanolone propionate at 100 mg per 1 ml ampoule, with ten ampoules in the pack. Each sealed glass ampoule is designed for single use, and the propionate ester attached to the drostanolone molecule consists of a three-carbon chain. This structural difference distinguishes it from the enanthate ester, which carries a seven-carbon chain and appears in drostanolone propionate 100mg formats from the same maker.

Masteron 100 mg Ampoule Pack

The pack holds ten separate 1 ml ampoules, each carrying 100 mg of drostanolone propionate. Where some drostanolone propionate for sale online in us come in multi-dose vials, this single-use format eliminates the need for repeated punctures of the same seal. Gomeisa Labs, a USA-based company making these since 2021, supplies the ampoules in a configuration that keeps each milliliter in its own sealed container. The 100 mg strength per milliliter sits below the 150 mg and 200 mg concentrations offered by other labs in the same category, which may matter when comparing injection volume against total content.

Propionate Against Enanthate in Practice

Drostanolone propionate and drostanolone enanthate are the same base compound with different esters. The propionate version uses a shorter ester chain, while the enanthate alternative extends the chain to seven carbons. This structural distinction changes the molecular weight and the ratio of active drostanolone to total mass in each milligram. The specifications on the label—concentration, ester type, ampoule count—are the facts that distinguish one product from another when deciding between manufacturers.