So vinca major or vinca minor? Minor contains reserpine and 49 other alkaloids, including vincamine, etc. It definitely is noticeable in effect as a nootropic but the phase cycles can be bad if used in excess. Significant depletion of cells within neurons can occur, as well.

Perhaps there is a synergy of the alkaloids because it certainly did feel good at the peak initially, but the comedown I found a little harsh and possibly dangerous to work with.

Ginkgo is great on the other hand. Gradual effects and sustaining once they peak. At least a week or two to truly take effect. No harshness, either. A beneficial ally. :d