Is Botox Mixed with Saline or Sterile Water and Once Mixed, How Long Can It Be Stored For?

Botox is mixed with normal saline (bacteriostatic) and can last for several weeks under proper refrigeration.  In most practices, it is used up the same day or within a few days.

Numerous studies have shown that the Botox molecule is stable, even with agitation, for at least 6 weeks after being reconstituted and refrigerated.  I have provided a link below of a recent article confirming these observations.