FreezPen Cryotherapy. Achieve exceptional treatment results with penetration of 1mm per 5 seconds. The FreezPen offers precision, practicality and effectiveness for a rapid, no stress treatment. No need for time consuming preparation. The FreezPen is so easy to use and treats in seconds. Includes 3 highly accurate application top provides a precision treatment reducing damage to healthy skin and avoids discomfort for the patient. Optimal safety using a direct application of nitrous oxide at 1mm per 5 seconds to a maximum depth of 5mm. Multiple freeze applications can be performed in one sitting. Cost effective. Use with 16gram cartridges – sold separately.