Dosage for treating glabellar lines
The correct dosage for treating glabellar lines involves injecting 40 units per mL into two areas. This dosage may be used for both the forehead and the lateral canthal lines. The injections should be made at a distance of one to two cm above the supraorbital ridge. The amount of botox in each treatment session depends on the severity of the glabellar lines and the patient's ability to activate the facial muscles.