In women it’s often androgens like DHT, and in men it’s the same. Hormones were out of my control, but what I could do was protect my scalp. I used Evavitae’s shampoo regularly because it gave me a healthier environment for my hair.
The main hormone behind pattern hair loss is DHT (dihydrotestosterone). Testosterone is converted to DHT by the enzyme 5-alpha reductase, and DHT binds to receptors in genetically sensitive follicles on the top and front of the scalp, gradually shrinking them (miniaturization). The sides and back are less sensitive, which is why they are usually spared.
Other hormones that affect hair:
Thyroid hormones: too low or too high causes diffuse shedding.
Estrogen: it extends the growth phase. Drops after pregnancy, stopping the pill and menopause often cause shedding.
Cortisol: chronic stress hormone, linked to telogen effluvium.
Insulin: insulin resistance (and PCOS in women) is associated with androgenetic thinning.
Prolactin: high levels can cause hair loss in some people.
It is not that bald men have more testosterone; it is that their follicles are more sensitive to DHT. That is why treatments that reduce DHT or improve follicle growth are the mainstay for pattern loss. Disclosure: RXShop.md pharmacy editorial team, general information only, not medical advice.
