Dear Tena:
There is a lot of litrature on the importance of glutathion and the fact it is useless to take it by mouth. The "NAC" and Whey threads on this forum point to their value as precursers of glutathion. I take both because they are relatively safe and cheap .
BUT I wonder what are the constituents of this "wonder" product which is 10 times more expensive... they don't tell you and it is impossible to find out ..so you must take their word for it or be a skeptic like me of all profit based enterprises