How Many Areas Dose 50mg of Botox Do and How Many Units in 50mg? Thanks

Botox is measured in units not in milligrams. Depending on how strong your muscle movement will determine how many units you would benefit from, 50 units would be enough to treat the forehead, around the eyes and glabella area

Botox is measured in units not milligrams and most would agree that you need a minimum of 20 units per area to have it last for three months.  Twice as much will not last twice as long and have as much may last a 1/3 of that time.  So 50 units will comfortably do two areas and possibly three depending upon how much muscle activity you have

Botox is delivered in unit doses. It is packaged as a powder which must be reconstituted using an injectable liquid such as saline or sterile water. The amount of liquid used to reconstitute the Botox will determine the concentration or units per milliliter.  Keep in mind that it is the total units delivered that matters, so 5ml containing 25 units will have more of an effect than 5 ml containing 15 units.  Each area of the face requires different amounts of Botox. Some require as much as 25 unit and others require fewer. It is not possible to say how many units will treat the whole face without a consultation to determine someone's personal needs. 

Sean R. Weiss MD

Facial Plastic and Reconstructive Surgery