A study published in the Proceedings of the National Academy of Sciences found that aging is associated with a 47% decrease in the catalytic subunit (GCLC) and a 52% decrease in the modulatory subunit (GCLM) of glutamate-cysteine ligase, the rate-limiting enzyme for glutathione production
Well, it might be the case that vitamin Cs antioxidant capacity spares the intervention of glutathione
If you take a look at gluta injection before and after pictures, you will easily spot the injections effects
Information Forms Available: Injections (intramuscular), sublingual tablets, oral tablets, capsules, chewables, gummies Key Ingredients: B1 (Thiamine), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic Acid), B6 (Pyridoxine), B7 (Biotin), B9 (Folic Acid), B12 (Methylcobalamin or Cyanocobalamin) Prescription Status: B12 injections require Rx in many countries
The latter can be beneficial for treating certain respiratory conditions but may have less impact on raising glutathione levels in the liver