n acetylcysteine glutathion NAC has direct antioxidant properties on oxidant species (e.g. OH • ) Chemical formula of N-acetylcysteine and
Description
It may then shift to include a generalized response that is triggered by a larger set of chemicals.[ref] Many researchers consider MCS to be a loss of tolerance to environmental contaminants, such as organophosphates, solvents, and heavy metals, even at concentrations considered non-toxic for most people

Randomized, Double-Blind, Controlled Trial of Acetylcysteine in Amyotrophic Lateral Sclerosis

Because ingredients are listed in descending order by weight, we can assume that goats rue, milk thistle, and possibly shatavari are the ingredients most likely to be at the effective doses, and all three have shown varying degrees of efficacy as lactation aids

and subcutaneous injections under the skin
