A personal vaporizer is configured to be used with a separately-formed vial. The vial can be sandwiched between a proximal and distal portion of the vaporizer, which in turn can be releasably attached to, and powered by, a battery assembly. Attaching the proximal and distal portions, with the vial in place, can both hold the vial in place and provide access to the vial so that vaporizing media within the vial can flow to an atomizer of the vaporizer. The vaporizer can include a child-proof locking structure for releasably engaging the proximal and distal portions.