I just ordered the garlic/yeast product from Only Natural Pet....maybe that combination will be more effective for ticks than just yeast or just garlic alone (which I've tried in the past with other dogs). Also maybe I can now get these two to eat if a garlic product is in their food (they previously refused Springtime's garlic product and the food it was in).
Fingers crossed here...even though Dan's never had a noticeable issue with topical stuff, I really am concerned about keeping using it.
I'll continue to use it until this stuff has a chance to take hold and start working. If I can get it in them, that is....