Note:  You will often read that glutathione supplements are not well absorbed orally, and this is true except for S-acetyl-l-glutathione, which is proven superior to IV glutathione infusions when it comes to absorption and duration of activity in the body.  Please understand this whenever researching information on the therapeutic use of glutathione in supplement form.  I use S-acetyl-glutathione exclusively myself and with my clients.  For more information, see HERE.