Some standard oral glutathione gets broken down by stomach acid before it can be absorbed. I chose this product because its liposomal formulation helps bypass digestive breakdown, supports mitochondrial function, and provides strong antioxidant benefits. After three weeks of consistent use, I noticed a steady increase in my afternoon energy. The quality is great, and I had no side effects or aftertaste. I would buy this product. I received this Dr. Mercola product in exchange for my honest review on Influenster.