Rosarugosa, that's great news. It would be SO helpful. Maybe if everyone asks, it'll help them make a decision. Hey, maybe we should start a new thread about this.
Piano, when I went to my integrative doc, he put me on pharmaceutical grade supplements. They are generally sold to doctor's offices, but I've noticed some specialized supplement stores also sell them if they have doctors (usually doctors from out of country) on hand. Mine are Genestra brand supplements, but I also get AOR or Jarrow. I know with my Genestra brand, their products are sent to neutral 3rd party labs for analysis and these "assays" are made public. It significantly raises the cost, but at least I know what I am getting.
A good example is L-tryptophan, which was taken off the market due to a contaminated batch that killed several people. On further investigation, I found out that the offending company, Showa Denko, actually made the batch with Genetically Engineered (GE) bacteria b/c it grew at a faster rate (therefore, more profit). It can't be coincidence that their first GE batch also killed 37 people. No one will ever know b/c they destroyed the evidence before it could be analyzed.
Another excellent example is probiotics. Most people unknowingly buy probiotics that are already dead, so they are just wasting their money. Unless something proves that the bacteria are live, who's to know what they are getting? My brand has public assays that are analyzed up until the expiration date to show that the bacteria are still live.
Sorry Piano.... I think I rambled a bit.
HTH,
Wanda