I agree with Barbara about fat burners. They're just a way for pharmaceutical companies to make money off of people as well. Weight 'burned off' through your own efforts is not only healthier, but will tend to stay off.
As for protein powders, I primarily use hemp protein powder (either just ground hemp, or hemp with theh oil removed). I will also sometimes use a yellow pea protein powder. I mix them in a morning smoothie or post-workout smoothie, thout lately, I've just been using Vega meal replacment, which is mostly hemp, with maca, flax and chlorella as other protein sources.
Some protein powders are not much more than a bunch of artificial chemicals with protein added, or isolated protein, and I personally feel they are inferior to food-based protein powders.