I was looking at dermarolling done for medical studies, and they did get results, but I agree, there is a lot of misinformation out there and people are using really large needles when the medical studies that I saw said that the main results happened with small ones.
It is a subject that if you want to do it, you need to learn about it first, because the larger needles and unsterilized needles do cause problems. The smallest ones don't even cause bleeding and the studies I read said there is still improvement with them.
I know there is no guarantee, but to say there is no hope at all, when there are before and after photos with loose skin that did tighten up makes it worth exploring in my mind - but with proper instruction and proper safety techniques or in the hands of a professional.
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