The frequency of using Dr. Pen will depend on your specific skin concerns and the recommendations of your dermatologist or skincare professional. Generally, it is recommended to use Dr. Pen once every 1-2 weeks for collagen induction therapy (CIT) treatments. Overusing Dr. Pen can lead to skin irritation and potentially worsen your skin condition. It is important to follow the instructions provided with your Dr. Pen device and consult with a skincare professional for personalized guidance on how often you should use it. Introduction to Dr Pen and its benefits Dr. Pen is a popular beauty tool that is used