Testosterone cypionate is the injectable androgen at the centre of this box: the natural male hormone esterified with cyclopentylpropionic acid, which slows its release from the injection site and stretches activity across a long window. Cypoprime is Eminence Labs' version of it, supplied as ten ampoules at 250 mg/ml.
Because the ester is a long one, preparations of this type are handled as depot injections rather than daily shots. The carrier is oil, not water, so the solution is drawn and given intramuscularly, and each ampoule is opened and emptied in one go with nothing left standing afterwards.
