I love this brand of tincture and use it for all the herbal supplements I take this way. I find their quality to be superior. I got this for focus for my teenage son and he like to take the shot of this in water with a juice "chaser". I also use at times in place of coffee late in the day. if you are looking for ginkgo product I think that herb pharm brand is the best.
I use ginkgo extract as a "brain brightener" when I start slowing down in the afternoon. I have found that adding a several drops of cayenne tincture to the bottle of ginkgo makes it more effective. Taste is a bit strong, and certainly not as tasty as a coffee, but it works!
My husband uses this regularly and says that his ability to think more clearly is so much better. Prices are reasonable, much more than the local stories where we used to buy. Oh, and delivery? So fast.