Does a Vial of Botox Come Pre-mixed?

Botox does not come premixed. It comes freeze dried (kinda like astronaut food). The injector will help pick the dilution of botox depending on the intended application. Once botox is mixed it should ideally be used within 4 hours of reconstitution but this number is controversial. Botox can be made more dilute but can never be made more concentrated (Add saline to product but do not add actually botox to reconstitution).

Botox does not come pre-mixed and needs to be reconstituted with normal saline prior to injection. Once mixed, the effectiveness of Botox can last for a certain period of time. Everyone dilutes their Botox with different amounts of normal saline, thus you should know how many 'units' of Botox that you are receiving and not how many 'cc's'. Good luck.