I solved the mystery when this morning I noticed on my local Facebook yardsale group that someone had posted unopened bottles for sale and I thought I recognized the symbol on it. I went to her Facebook page and saw the same symbol on the cropped ad she'd posted. For some reason I didn't put 2+2 together when I was on the isagenix site.
Also this whole thing has resulted in me getting a lot of weight loss ads everywhere I go. Got to clear my cookies me thinks.
I was right! One of my FB friends sells that stuff and posts the same kind of crap. Close inspection of the logos on the pics she posted and FB stalking of her friend/"mentor" on her "journey" told me what I wanted to know. It's so ridiculous.