I’m not talking about nano-fabs. From a pharma perspective, I’m talking about moleculars that are produced in GMP facilities and sold like any other USP, not for human use. This is admittedly dangerous because the formulations could have contaminants. However, even in FDA-approved pharma, you get things like NDMA being used as a solvent and ending up as millimolar fractions, and the drugs don’t even get pulled for months after discovery by some random independent lab. There are thousands of moleculars that pharma will never push through the FDA because it’s a natural human protein fragment and therefore impossible to patent and profit from.