Lately there has been an increase in pharma shills spamming the various CS forums to scare people from using CS. I suspect you are one of them. Properly made electro Colloidal Silver will not cause argyria. Anything over 30ppm sold commercially is usually not true CS and has stabilizers added. I suspect if you are for real then your mom was taking something other than true CS. Please post the details, brand or home made process, ppm, and amounts consumed so we may all benefit.