Botulinum toxin is one of the most poisonous substances known to man. Scientists have estimated that a single gram could kill as many as 1 million people and a couple of kilograms could kill every human on earth. In high concentrations, botulinum toxin can result in botulism, a severe, life-threatening illness. Botulism, left untreated, may result in respiratory failure and death. Despite botulinum toxin being so toxic, Botox is in huge demand.
I usually charge $12 a unit for botox. The number of units depends on the site. The "eleven" lines or glabellar area I usually use 20 units. Also I used 20-30 units for the forehead. In the crows feet I use about 15 units per side or 30 units total. To give a Botox brow lift I use 5 units total. Finally to give a patient a natural smile or soften the sad look of the mouth I use about 10 units. You can calculate the math to determine the cost depending on what you would like to get. Botox cost is going to vary by location as overhead will be different in different areas of the country. Maintaining a park avenue office is much more costly than an office in New Jersey so my price may be lower than someone in Manhattan. Someone in Bucks County Pennsylvania may have lower costs and thus lower prices still.
Spread of toxin effects. The effect of botulinum toxin may affect areas away from the injection site and cause serious symptoms including: loss of strength and all-over muscle weakness, double vision, blurred vision and drooping eyelids, hoarseness or change or loss of voice, trouble saying words clearly, loss of bladder control, trouble breathing, and trouble swallowing.