I have seen Bill for a few exosomes infusions! He is the best at explaining and educating, as well as make you feel so comfortable as his patient. It has been about 4 months since my last one (supposed to start seeing results in 3 months or so)….. I definitely have seen my nails and hair change for the better. My hair is growing in thicker and faster (so exciting!) and my nails are stronger than ever!! I have to believe more positive changes must be occurring inside my cells and body!! I highly recommend!!!