Nearly all men and most women who have androgenic or inherited hair loss can be treated with hair transplantation.
Hair transplantation may not be the most effective therapy for some medical causes of hair loss; in some instances, it exacerbates the condition.
Therefore, workup to rule out other treatable causes of hair loss is important, especially in women, in whom nongenetic etiologies for the hair loss are more common than in men.
Before going to the hair transplant part there are chemicals named minoxidil and finasteride or some oils, cosmetics, lasers etc. but they are not treatment but conservative approach generally for people under 20s.