Thank you so much for your question. When we use derma roller at home there are few precautions we should take care of like .. not to use retinol creams for 3 days before and after the treatment . Also we should always stick to derma roller with 0.25 mm needles only so not to be...
Really depends on your skin sensitivities and the depth of rolling. From a safety point of view, start with say 0.25 mm roller, test patch the retinol and go from there. Derma rollers, much like DermaPen and SkinPen is a form of Collagen Induction Therapy or CIT. Rollers have needles of varying ...
I agree with Dr Gupta, pathology of chicken pox scar is very different to atrophic acne scars. You may get very little traction out of the 0.5 roller, however if you are sensible you can give this a go before seeing a dermatologist. Dr Davin S. Lim, Brisbane. Australia.