Thanks! Yeah, because it goes into your bloodstream it affects all hair (except scalp) for me. It's said not to be good for female pattern hair loss which is basically diffuse thinning at the crown.
I have tried EVERYTHING for diffuse thinning problem which for me has to do with age, genes, and I'd say bad luck. If I were to add up how much I've spend on every product/pill I've been trying since 2006, I would have a major heart attack!