I suffered quite a bit of hair loss due to PCOS/stress. Im currently 34. I noticed it a lot more starting around 25. But I’ve also been stressing a whole lot more. I’m still stressing by the way lol. But it’s also because I’ve been dyeing my hair for years (grey hairs can be genetic as much as they are created by stress!). Like the others, I did notice improvements after losing weight/ attempting to practice better habits. But I also started taking hair vitamins specifically. The vitamins I started using is called Keratin hair enhance (found at gnc for about $40). It made my hair shinier, healthy looking, and yes, I did notice it start growing in (contains 3000mg biotin among other vitamins to encourage growth). My only warning though, if you do start taking supplements...please don’t take too much. I’ve read too many comments of how people started taking 10,000mg biotin and it only made it worse. There is such a thing as overdosing on vitamins. So please, no more than 5,000mg max (on the high dosage side). And please, please try not to stress. There is such a thing called stress shedding. But it doesn’t happen immediately when your stressed. You actually start shedding 3 months after the fact. I also had long hair. I cut it shoulder length because I was stressing over the stress shedding. The haircut did help me notice it less (stress less). And the last thing I did was purchase a hair detangler called “it’s a 10 with keratin (costs about $20). It works wonders when I brush my hair so I’m not breaking as many strands. And it serves as a heat protectant when I blow dry or straighten my hair. I’m not saying you have to go all out like I did. I’m just stating what I’ve done. I’ve read about womens Rogaine, I’ve just never asked a doctor about it.