Agree that this has all the hallmarks of an MLM/pyramid scheme, though I would point out that those business structures are not illegal, but are significantly more controlled than they were in say the 1970s and 80s. You may already know, but Amway is still very much in business and has done so by spinning off child companies (Britt World Wide is one) that focus on a particular market segment. Another way businesses avoid the MLM/pyramid black eye is by no longer requiring "entrepreneurs" to buy their product up front and sell it, as well as by eliminating the "recruit other entrepreneurs to work underneath you" system. Essentially these folks now act as individual third party sales people that simply point potential customers towards a website to order. I would argue that the last strategy is no different than what we do on this forum; someone finds a good cladding treatment (mike nomy for example) then shares the story and pushes the rest of us to try it. So it's not like this type of post is unprecedented, and he did post it in the "Chit chat - Non VX" forum group, so I think crying foul is unwarranted.
All that said, I would be cautious of these studies. Amway had/has tons of studies that demonstrated that their toothpastes, cosmetics, etc. were the best thing out there; but it turns out most of those were less-than-reliable sources. But if this thing has been reviewed/recommended in the New England Journal of Medicine, etc., maybe it is legit.
