Glutathione is found in all cells in the body, Glutathione in pill form will not be absorbed and will be eliminated by the liver before it reaches the blood stream and what we want it to do is reach the blood stream in essence it would make sense to utilize the injectable form of Glutathione or Vitamin by IV or IM(intra-muscular.. I believe!) I live in NY and majority of places you can find these injections are in the Philippines. I found a site online where you can purchase vitamin 500 Mg/5 Ml Ascorbic Acid for $15 dollars.. I am thinking of purchasing soon. I also found vitamin C injections from magic-potions.com for $80 dollars and shipping is around $30 dollars. I purchased their zhen de shou pills from eBay for a cheaper price (getting ready for summer!). I hope I'm to the point... no expert here!