Yup, it shoots electricity through your skin which is obvious it would increase circulation, I use it daily no more than 5 minutes, on scalp, 5 minutes on spine and few other areas, scalp stays red for about an hour. I am on session 30 I grew all that hair back from dermarolling seems hairs are growing very slow even some under hairline. I'm thinking these hairs will take a while like the ones for people who get transplants, I believe it's 4-6 months, but in going on 1 month and a half without dermarolling, seems I am off to a very good start as some hairs look pretty strong, only thing is I'm cutting my hair twice twice a week to keep hair as even as possible.
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If your gonna try electric stimulation you should go with violet ray, those specs look pretty weak. We are talking frequency in the 200,000 hz vs 118hz, better to get those cells jumping as much as possible to cause some good blood flow, plus it kills any bacteria and inflammation.