Hello. Thanks for writing to us at healthcaremagic Androgenetic alopecia is the likely reason for his hair fall and decreased hair density. I would suggest that he consults dermatologist for a prescription because treatment of androgenetic alopecia produces good results if initiated early in the course before it is too late. Minoxidil and finasteride are US FDA approved treatments for androgenetic alopecia. Treatment is long term and usually produces noticeable improvement within 3 months of initiating. Other treatment option for androgenetic alopecia is PRP (Platelet Rich Plasma) therapy and hair transplant. In PRP patients own blood is centrifuged under controlled conditions and the platelet rich plasma fraction is separated from the rest of it. This platelet rich fraction is then injected into the are affected by hair loss. The principle of this therapy is that human platelets are rich in growth factors which promote hair growth and even reverse hair loss. Sessions of PRP can be repeated every 2-3 months for a total of 3-4 sessions. I would suggest him to consult a dermatologist in his region regarding the best form of therapy for his kind of hair loss. Regards