A couple on HRT T pellets have tried FIN 2.5 mg EOD and it has helped reduce associated hair loss, it does work, will cut the circulating DHT to a level below the normal range for a female even with a total T in the 300 - 400 range (measured by MS/LC both T and DHT), but that was with exogenous androgen use. Dampens the increase in energy, libido and drive with the T however, no surprises there. FIN would only be helpful IF the hair loss is due to androgens. She should get a Dx from a derm that specializes in hair loss to make sure FIN would be an appropriate choice. If it is female pattern or some other cause, FIN won't help and IMO FIN would be the last option. The drug is toxic, way too many long term psych sides associated with it even after discontinuation, it messes with neuro chemistry. Lastly, absolutely can't donate blood or become pregnant on FIN. Not much helps with hair growing back. Several that I know have tried everything topical, PRP, etc. with no luck. Genetics is the key we haven't figured out yet. Others may chime in with their experiences.