I have had contact hair loss, had full hair for years, had all test done with lab work, hormones fine, thyroid fine, all panel test fine. Does biotin help? Or argan oil on hair help. I ve tried a lot of protein things on my hair (mayonnaise , egg etc) and am dropping hair just when I run my hands thru it. After all that , I was reading about biotin. Do you have any suggestions? I am 65 and had a 0.1 estrogen patch on me for 10 years. But my estrogen levels are spot on. Do you have any thoughts to help? Thank you for being here, Ann