Propionate is the shortest of the common testosterone esters, and that alone separates Proprime from the enanthate or cypionate versions of the same hormone. The ester is cleaved after injection and testosterone is released quickly, so a preparation built on it is short-acting by nature and administered far more often than a long-ester oil.
Eminence Labs supplies it as an oil solution in ten 1 ml glass ampoules, each at 100 mg per millilitre. The Indian manufacturer builds most of its injectable range around sealed single-use ampoules rather than multidose bottles, so every unit is opened and finished with nothing left standing.
