I don’t like the protein stearalkonium chloride or ]phenoxyethanol or grapefruit, as much of the grapefruit seed extract (I assume that is likely what this is) is solvent extracted.
I can’t use any shampoo, no matter how “natural” as they have stuff like that in them. And the useful stuff is very likely not in large enough quantities to be useful.
I would recommend getting the useful EOs and using directly in inhalations or however. I don’t know how many of these ingredients are EOs or what they are; nettle, clary sage, coltsfoot, mallow, horsetail are not noted for antiviral potency. Thyme, eucalyptus, peppermint and maybe birchbark EOs, yarrow EO is way too expensive but as a tea or powdered herb it has use in infective illness esp. for fevers. Coltsfoot tea is great for coughs but whatever amount is in the shampoo would have no therapeutic value.
I use coltsfoot (about half a # of c/s herb) as one of the ingredients in home made cough syrup, very effective for coughs. I use yarrow in fever herb mixes Some of these are for hair such as horsetail (not sure what effect when washed, internally it strengthens hair nails due to mineral content). Nettle is a useful herb but I have never used it.
That’s my .02.
ThankQ!