Skulpt has a topical AI in it, besides Yohimbe. I've never been particularly impressed with topical AI's as a stand alone AI...maybe for women, in problem areas, but certainly not in men.
Lipoderm Ultra is good, I used it when I was writing for Avant/M&M. For awhile I made my own topicals with Phlo-gel, but now I'm trying TargeX.