Dermarolling or microneedling seems to have become rather popular during past few years. On the surface (pun intended) the idea behind it seems plausible, i.e. causing minor breaks in the skin in order to promote growth of new collagen to repair these holes. Many people seem to be doing this procedure at home and I have myself tried it a couple of times. I have some doubts, however. First one is treating areas with small flat moles and other increased pigmentations, liver sppot and birthmarks. If there are malignant changes in the mole, doesn't breaking the skin cause cancerous cells to spread around? By potential malignant changes I mean small flat moles that appear harmless but are not necessarily. My second question concerns creams and other treatments used in the process. Are they really necessary, and if they are, why is that? Shouldn't causing small holes promote collagen growth even without any creams? My last doubt is about dermarollers as such. Is there any guarantee that needles do not contain for instance nickel or aluminium? I hve used a 1 mm needle a couple of times and got a sunburn like effect but no significant changes in skin. Is it possible that dermarolling could actually speed up aging by breaking existing collagen?
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