Hmmm... such a product I have never seen. The 2-in-ones I've used never do a good enough job so I hesitate to recommend them, but everyone is different, so if you find one that's effective, please let us know!!!
When I was in Belize last year I made the mistake of laying in a hammock at dusk and, without even feeling it, got eaten alive by those sneaky little buggers. The bites were hideous!!! After that I was smart enough to protect myself with Burt's Bees herbal repellant- it works like a charm, and also, because it's oily, if you apply it liberally the sand flies literally drown in it.
Enjoy your time in SP!!!