Q: How many sessions of Exosomes do I need to see a difference? A: Most people need 4 to 6 sessions, spaced about a month apart, to see good results. • After your 1st or 2nd session, you should notice your active hair fall starting to slow down. • By the 3rd or 4th session, you will begin to see tiny new baby hairs growing and your existing hair becoming thicker.