I just read the wiki on yerba mate and it says:
"Maté products are sometimes falsely marketed as "caffeine-free" alternatives to coffee and tea, and said to have fewer negative effects. This is based on a mistaken claim that the primary active xanthine in maté is "mateine", erroneously said to be a stereoisomer of caffeine. However, it is not chemically possible for caffeine to have a stereoisomer, and "mateine" is an official synonym of caffeine in the chemical databases."
Apparently this is no different than drinking caffeine. Too bad, I was hoping for a good alternative as well.
"Whatever dramas are going on in my life, I always find that place inside my head where I see myself as the cleanest, tallest, strongest, wisest person that I can be." -Layne Staley
"The earth we abuse and the living things we kill will, in the end, take their revenge; for in exploiting their presence we are diminishing our future." -Marya Mannes
"Those who believe absurdities will commit atrocities." -Voltaire