Question: how many injections needed for botox?
Answer: How much Botox is permissible on the forehead? Botox comes in dosages between 50 and 200 units per syringe. Some practitioners say they inject an average of 8 to 20 units into the forehead. Allergan, the manufacturer of Botox Cosmetic, suggests a dosage of 4 units each in five sites on the forehead, totaling 20 units.