I also have a severe problem with hair loss. i had chemo and loss all hair and have been taking Letrozole for 7 years and will continue another three years. I recently had my Ferritin checked. That is your iron store. The iron/hemoglobin can be fine and the Ferritin low. It is not normally checked so you might need to ask for the test. It is an easy blood test. Solution is over the counter iron tablet. My ferritin was 6 when I started taking iron. Does not take long for it to improve.

Below is some info that I found. A ferritin level below 50 for most women is an indication that supplementation is needed. Increasing ferritin levels to 70 or higher nanograms per milliliter for at least 3 months has shown to be beneficial for hair loss as a result of iron deficiency.

It is hypothesized that the reason ferritin levels need to be up significantly before hair loss stops and regrowth occurs, is because the ferritin in your hair follicle is one of the last places the body is concerned about replenishing. Reduced ferritin in the hair follicle weaken the hair itself and lead to hair loss. Just be sure to also consume enough protein to maintain the infrastructure needed for vibrant hair.

Another option to consider is minoxidil 2.5mg tablet. My oncologist prescribed it. I am taking a half of the 2.5mg. Some people take a whole tablet and are pleased. It is the product that is in Rogaine but in a tablet form so easier to use than the foam/liquid. It is not an overnight cure. I have read it could take a year. I have just started so are waiting for results and will report later.

My best to all the women suffering with hair loss and thinning hair.