I first tried Liftmode caffeine and theanine energy supplement purchased from http://www.liftmode.com about 2 years ago. When I first tried it it seemed hit or miss, but it could have been the fact that I was not used to the synergistic effect of energy and calming of the two ingredients this product has in it, and also the fact that I was used to using stronger stimulant based supplements also. They actually gave me a refund for my first order, and they have very good customer service, but I decided to try it again after it sat in my cabinet for a while. I was totally SOLD after I was able to realize how calm, energized and focused this supplement really mad me feel.
I have purchased this product numerous times in the past. I would say to give this product a try and see how it works for you, the customer service at liftmode is very good, which is a plus for me. I also have used it pre-workout, and it works great! This product is great for energy and focus. One thing I do like a lot about this product is the fact that I seem to get no crash from it, which is a strong plus.