How can I tell if my minoxidil and dermroller is working?

Ive been using 5% minox for about a month now along with dermarolling once a week and anti dandruff shampoo. My hairline hasnt improved much but i noticed lots and i mean LOTS of small hairs around the hairline after shower today. I heard hairs shrink before they fall out, the little hairs actually lay flat on my forehead so they mask my slightly receded temples nicely. Are those new hairs or are...

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