As a dermatologist, I practice evidence based medicines. There is no evidence to show that curry leaves help in controlling hairloss. We generally use medicines like minoxidil, finasteride, ketoconazole, hair peptides and procedures like PRP, microneedling and hair transplant for hairloss. If your hairloss is due to some disease affecting your scalp the disease need to be treated to control the hairloss. Warm regards. Dr. Rajdeep much. Chirag Hospital Bangalore