Sealed glass ampoules are what is in this box: ten of them, each holding one millilitre of oil at 100 mg/ml of testosterone propionate. Maxtreme packages most of its injectable catalogue this way, one ampoule per withdrawal, which keeps the contents untouched until the neck is snapped.
The active hormone is plain testosterone; the propionate group attached to it is a three-carbon chain, the shortest ester in routine use. That chain governs how the whole preparation behaves - rapid release, a brief window of activity, and a far tighter injection rhythm than long esters call for.
