I always ALWAYS use the liquid. It's more costly, but man what a difference. I'm sure some people have mastered using powder, but honestly i've only tried it once and only once. It's slimy, clumpy and I didn't even try to drink it. The liquid one you can by (i buy Yerba Prima) is completely smooth and tasteless and just goes nicely into whatever you're shakin up. They have a larger, amber glass bottle too which is a better deal. I've been using it for years now. Best of luck!