high dose glutathione Liposomal Glutathione, 450mg 150ml High Dose Glutathione | IV

PMID 40789979 - a more recent review summarising regenerative potential and interpretive caveats

As the master antioxidant in the body Glutathione has a range of divers metabolic functions including acting as a free radical scavenger, "recharging" depleted antioxidants back into their active state (Vitamin C, Vitamin E, Vitamin A, etc.), maintaining the immune system, supporting protein structures and removing heavy metals such as mercury through the liver

Even so, it comes with notable side effects when you consider the injectable form

It helps protect the skin from oxidative stress caused by factors such as UV exposure, pollution, and environmental damage