For new hair growth, it might be six to 12 months. It seemed to invigorate the hair I already had but who knows. 2.5mg is the preferred dose for men. I was microneedling too and I suggest that and recommend it hardily. I just did neck, arms, hands, face and scalp with minoxidil, retin-A and you don't use this one, but also Estrogel.
Janey
