Studies, like this 1992 study, have shown that muscle fatigue can be delayed by boosting glutathione levels.
(Eur J Clin Nutr, 2018) found that liposomal glutathione at 500 mg or 1,000 mg daily for 1 month increased blood glutathione levels by 40% at the higher dose [15]
Of these, only seven produced 50% solubility (SMPX_HUMAN, HBP1_HUMAN, IPKA_HUMAN), the others were either present in very low amounts (MAR1_HUMAN, APR_HUMAN) or were not solubilized at all (STP1_HUMAN, BTG1_HUMAN, MGN_HUMAN) [64, 65]
It helps to break down and absorb nutrients from the food we eat, turning them into energy the body can use
Chakravarty, N
GOOD BIOAVAILABILITY: Healthy Origins L-Glutathione is characterised by good bioavailability and is suitable for a vegan diet