A needle-less vial assembly that includes an assembly body arranged at least partially within a neck of a vial, the body having a first portion within the vial for receiving a substance, a second portion that includes a means for matingly engaging with a syringe, and a channel defined therein, thereby enabling fluid communication of the substance between the vial and the syringe. The assembly further including a first inlet arranged longitudinally along a length of the first portion and proximate to the second portion, wherein the first inlet enables fluid communication between an interior of the vial and the channel, thereby enabling withdrawal of substantially all of the substance within the vial, and an outlet arranged at an end of the second portion of the body, thereby enabling a needle-less transfer of substances between the channel and the syringe.
