Mechanism of action of Glutathione in the biological system The enzyme Glutathione transferase conjugate Glutathione to fat soluble compound, heavy metal such as Mercury and lead making it water soluble for excretion Hydrogen Water vs. Glutathione (GSH): Comparing Health Benefits Evolved H2O I differentiate between water soluble and fat soluble vitamins. Water soluble vitamins like B complex and C dissolve in water, are not stored, and are excreted. Conversely, fat soluble vitamins (A, D, E, K) require dietary fat Glutathione Wikipedia