Primary Function: Tri-Fortify® is a clinically researched liposomal glutathione in a delicious oral delivery system, providing superior cellular absorption. Tri-Fortify® is backed by peer-reviewed, published clinical research. Furthermore, Tri-Fortify® overcomes the common shortcomings of other glutathione supplements. Deliver glutathione into the cell, not just into the plasma. Promote healthy natural killer cell function. Improve oxidative stress markers.