Are you able to track down long complex supply chains? Years ago I did QA lab work for awhile for a domestic USA supplement manufacturer, and almost everything

Are you able to track down long complex supply chains? Years ago I did QA lab work for awhile for a domestic USA supplement manufacturer, and almost everything going into their products came from overseas - China, India, Japan, etc. My job was testing for heavy metals and bacterial and mold contamination, basically, plus levels of active ingredients in some cases. None of that information about country-of-origin ever went on the labels. My recommendations are that if you're going to buy herbal supplements, buy them direct from domestic organic producers, ideally straight from the farmer online, and if you're going to buy other supplements, it's generally better to stay away from complex formulations, e.g. get pure vitamin C powder or pure glucosamine, in a gel capsule form, that ensures minimal handling and processing in perhaps-poorly-managed facilities. It's good that peope are paying attention to sourcing, at least, but it's a complicated web to untangle.