glutathione and vitamin c injection benefits C: Powerful Duo in IV Therapy Vitamin C and glutathione supplementation:

For example, Cardiovascular patients are likely to have been notified by their physicians that their blood levels of Hcy are increased and that they must take folic acid and vitamin B12 to reduce them (Jakubowski 2019)

It turns a "maybe" into a "definitely" regarding cellular impact, which is the same idea behind Cymbiotikas Liposomal Glutathione Supplement

Understanding what studies actually demonstrate helps set realistic expectations and guides protocol development

Ann Neurol 1994

Reputable medical organizations note that high doses of vitamins delivered intravenously can cause kidney damage, heart rhythm abnormalities, and blood pressure changes, and that most nutrients can be obtained safely through diet and oral supplements