It's a simple injection that gives your body the building blocks it's likely been missing
checkpoint inhibitors do not depend on ROS to kill cancer cells) Surgical prehabilitation and post-operative recovery Cachexia and active lean-mass loss (the cachexia threat usually outweighs the GSH-resistance concern) Long-term survivorship and post-treatment recovery Most cautious timing: On infusion days with ROS-generating chemo (doxorubicin, epirubicin, cisplatin, carboplatin, cyclophosphamide) During daily radiation fractions, especially in tumors already known for radioresistance (cervix, ovarian, glioblastoma) In tumors with documented high baseline GSH (melanoma, hepatocellular carcinoma, advanced breast, colon, pancreatic, lung) Practical rule of thumb: A common integrative approach is to skip whey (and other antioxidant-loading supplements) the day before, day of, and day after an infusion or radiation fraction and to use it freely between treatments for recovery and nutritional support

For a deeper look at how Cymbiotika frames this ingredient, see What Does Liposomal Glutathione Do for Your Body
Detection windows vary, but many peptides remain detectable for 2-4 weeks after your last dose