When is it too late too start growth stimulants like Minoxidil or prp? Is it too late at norwood 5 or if someone is slick bald at norwood 6?. I'm already on finasteride (month 2) but are left with fine invisible hairs only so My scalp is visible. I'm considering stopping meds and get a hair system or go HRT route feminizazation. I'm Currently a norwood 5. My hair stopped growing months ago. Does it vary from person to person when the hair follicles go dead/inactive and unable to grow hair Even if i start using treatments??. Heard it could take years.