I started dermarolling with a 0.5 needle dermaroller about a year ago. But I really didn't do it often enough - maybe once every six weeks. I'm now trying to do it once a week, in the morning (I don't want to put actives on afterwards as I'm worried they might sting) before my TA 'buffet' and HA (and followed by my usual oil).
I'm curious as to how often others do it and how long it's taken them to see results.