Is it safe for a 50 year old woman that has no uterus to take Finasteride for hair loss
Yes. Finasteride is often tried in post-menopausal women, but the results are a mixed bag and the drug will not reliably return more hair to the thinning areas. There is an androgen sensitivity test for women by HairDX that could help determine if you’ll see possible benefits from the medication. Read more about that here.
Finasteride is a prescription drug, so you should discuss this further with your doctor.