Hello, I have been using one from the same manufacturer but 1.5 mm instead of 0.5 with what I believe to be ok results, however many members will argue that its a waste of time (honestly opinions are all over the place but it might be worth to try).
However in you case I'm not sure what are you trying to accomplish, dermarolling the scar of a HT wont grow any hair there since there are no hair follicle to bring back to live. It could help improving the skin but not sure if it will make a big difference or if your are going for that at all
However in you case I'm not sure what are you trying to accomplish, dermarolling the scar of a HT wont grow any hair there since there are no hair follicle to bring back to live. It could help improving the skin but not sure if it will make a big difference or if your are going for that at all
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