oral glutathione bioavailability issues delivery of glutathione: antioxidant function, barriers and strategies – ScienceOpen The benefits of glutathione supplementation

My TSH and T4 have never been that far out of range but with the proper testing I found Hashimotos, which explained my constant fatigue and irregular periods (they can be anywhere from 14 days to 50+ and last 2-3 days or up to 10, and be very heavy or very light, truly irregular in all manner of ways!) Oh and folate needs testing too

NAD+: The Universal Electron Carrier Nicotinamide Adenine Dinucleotide (NAD+) is the essential substrate for ATP production and the primary fuel for Sirtuins the family of enzymes responsible for DNA repair and longevity

Sterile Water for Injection contains no preservative and must be used immediately upon vial entry or discarded

It would be digested before it reached the cells

El-Tantawy WH (2016) Antioxidant effects of Spirulina supplement against lead acetate-induced hepatic injury in rats