4 citations,
July 2014 in “Journal of Investigative Dermatology”
Old people have less hair because their hair follicles don't regenerate as well, not because of fewer stem cells, and a protein called follistatin might help reactivate hair growth.
The conversation discusses difficulty in distinguishing between new hair growth and thinning hair at the temples after using microneedling and a rosemary peppermint topical for four weeks. The advice given is to wait a few months to see if the hairs grow out to determine their nature.
Hair follicles usually go dormant rather than die, and treatments like finasteride, minoxidil, and hormone therapy can sometimes reactivate them, though results vary. Complete regrowth is rare, especially in long-term bald areas, but some individuals see significant improvement with these treatments.
Finasteride and minoxidil can revive hair dormant for up to 7 years, with microneedling enhancing regrowth. Users report significant hair regrowth even after long periods of baldness.
A user shared a hair growth stack using minoxidil sulfate, valproic acid, bimatoprost, blue copper peptide, and other ingredients, emphasizing a gel-based formula for better skin tolerance. Another user suggested adding a 5-alpha-reductase inhibitor like finasteride or dutasteride for more effective long-term results.