One of my friends is a hairdresser, for his clients, he has better advice than most derms.
For women, he recommends biotin supplements (hair, skin & nail supplements) and prescription Spironolactone tablets, a medication formerly used for men with prostate problems! Spironolactone blocks the male hormones, especially Androgens, in women who have thinning hair.
My friend says his female clients hair has stopped falling out as rapidly and the new growth has been stronger and healthier looking, which is usually not the case with hair loss. With each cycle of hair regrowth, he notices the hair strands are thicker, this is usually never the case with hair loss. With most male and female hair loss, it's usually is heading towards permanent loss, strands of new regrowth would look thinner, not thicker.
Other reasons for hair loss are, of course, not permanent, such as loss due to chemo and other meds which cause hair loss.
Spironolactone is one the medications MTF trans people are prescribed during their transition, not sure how this med would affect men who are not transitioning. This med is also used as a water pill for high blood pressure.
With hair loss, for men and women, it's not just about the sheds, you have to notice how thin, or thick, new strands appear. That's usually a barometer of whether or not the hair loss will be permanent or temporary.
Most dermas are clueless about hair loss. Years ago, a derma was shooting up my sister's scalp with steroids, all the steroids did was thin her scalp skin, there was no hair re-growth. These days, her sheds are much less than when they started, her hair has stabilized. My sister started with very thick strong hair, which is a huge plus for anyone with thinning hair. In her case, her hair loss isn't as obvious as it would be for a person who started out with thin flat hair.