What convinces you that derma-rolling does anything?What is it supposed to do?
It seems some positive data is available, but not overwhelmingly convincing.https://www.sciencedirect.com/science/article/abs/pii/S1748681517302504The authors conclude " The current literature does show some methodological shortcomings, and further research is required to truly establish microneedling as an evidence-based therapeutic option for treating scars, wrinkles and other skin conditions."
I'm not sure it has been determined that cell turnover results from any type of skin irritation, but it seems reasonable.
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