Peaceful Mountain: silver plus menthol?

Peaceful Mountain makes a line of silver products (saw them in grocery store health food section) like a nasal spray that contains just silver colloid. But other products contain silver colloid and menthol. Isn't this inviting Argyria (silver compounds fixed in the skin making it blue-gray) by mixing in a potential proteinaceous contaminant, i.e., the menthol? Thanks for any comments.