Honestly, I find it difficult to take any claim by TyTy as a fact. And yes, the fact that TS is ONLY sold at TyTy is another red flag against its legitimacy. I've read people on here asking the same question and can't remember what the consensus was (
but here's a thread that might have some more answers or at least discussion on the topic).
Ahh, TyTy...I heard they are recently marketing a new type of banana they call the Florida Pastie
.....joking.