Inverted, just to help you further, read the flavor profile of TRiche and TRExtra. Then take a small sample of your wine to do taste tests. First I mixed up a small sample of wine tannin powder, put a tiny bit in my wine and tasted both the sample with tannin, and without. I preferred the tannin. So next I added a drop or 2 of authentic vanilla and found I preferred the wine with tannin but no extra vanilla. That's why I want the Tannin Riche instead of TRExtra.
Thought it might help you figure out what would go best with your wine.
Pam in cinti