nacetylcysteine glutathione NAC has direct antioxidant properties on oxidant species (e.g. OH • ) N-Acetyl-L-Cysteine (NAC) | Superior Supplement
Description
An increase in the level of ROS above the limit dictated by antioxidant protection leads biological systems to a state of oxidative stress, which is accompanied by lipid peroxidation, mutagenic changes in DNA, protein modifications and various pathological processes [3]

I remember a friend who started with the standard dose but found that increasing to four sprays a day helped manage her symptoms better
Breast-conserving surgery with or without irradiation in women aged 65 years or older with early breast cancer (PRIME II): a randomised controlled trial

Typically, the term is used to describe an infectious agent such as a virus, bacterium, prion, fungus, or other microorganism

Their data supported that in-situ injected mitochondria can be taken by neurons, astrocytes and microglia in MCAO mice, and the intact respiratory activity is essential for the mitochondrial potency on neural protection [104]

doi: 10.1007/s40618-020-01220-w