Heavy Hair fall problem

For those of you dealing with frizzy, dry hair and experiencing heavy hair fall, how did you manage to treat it? What steps or products did you use to improve your hair health?

Little bit detail-

My girlfriend is struggling with hair fall, and we've tried several products, including "gharelu nuskhe," but nothing seems to work. It breaks my heart when she shows me the hair she loses after gently combing. The problem is getting worse. If anyone has any solutions, I would truly appreciate your help. 🙏🙏