How Often Should You Use a 1.0 Mm Dermaroller for Hair Loss?

I am currently being treated using a product called the dermapen for a couple of surgical scars I have. I came across some information that you could actually purchase a similar product to this called the dermaroller and that it could be used to help stop hair loss and even help regrow it. I was wondering if using the 1.0 mm roller how often should you use it? I seen some people say they use it every night in combination with Minoxidil, but I would be using it a standalone product.

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