I use a non-herbal as well. Friends of mine are Advocare dealers, and while I'm definitely not a bandwagon-type for products, I really like the Spark (an energy drink) and Rehydrate (electrolytes).

I have tried the rehydrate gels as well, and I'm still trying to decide which I like better for electrolyte replacement. I felt a bit wiped after our ride on Sunday, despite the 4 bottles of water, banana, clif bloks, and good food in advance, with a muscle milk after.