There's another form of thiamine from garlic. It's called allithiamine and it does penetrate the blood brain barrier as well.

Does anyone have anything new to say about sulbutiamine? Is it working for you?

While I was researching this I found a comment that stated that the manufacture of sulbutiamine is suspect, though it was seemingly a knowledgeable source, it was an offhand statement so I'm not sure if it has any validity.

I'm gonna try this allithiamine (swallow it fast cause it's very garlicky and you'll lose all your friends) and see how it goes.

I am having great success with B2 tabs BTW. 100 mg x2 a day. Also some family members are finding big changes with it too. Maybe my family is predisposed to poor B2 absorption .. I dunno, but it's been a big improvement for me so far.