"The problem with mass production of herbal remedies is that the process is not well supervised. Microbes and other extraneous particulate can find their way into your bottle and cause you greater harm than good."
So what?
If they have the Generally Regarded As Safe designation, then they are the same quality as food products with respect to microbes and other particulates. People can choose to take them or not take them at their own risk.
Why should it be up to you, your wife, or any gov't employee whether people can take supplements that are GRAS designated? You are proposing the extension of the nanny state. You'll find a very receptive home at DU for your ideas, no doubt.