Best treatment for dormant hairs? (from Reddit)

What would you say is the most effective growth agonist? I’ve heard people say oral minoxidil, but is topical estrogen also capable of reviving follicles after they’ve dormant for a few years?

Reviving dormant follicles is not something that may always happen. The places were we see revival is usually when the loss is less than a year, two at most. Those who have had long term balding may not be able to revive those hairs. The traditional approaches all have value including Microneedling, minoxidil (oral or topical) and finasteride. Estrogens in the face of high testosterone may have more limited value.