So far have tried four different flavors of the energy drink...Pink Lemonade, Blue Raspberry Lemonade, Citrus Bliss, and Kiwi Strawberry. I have been using this product for the last two years and will continue to purchase. My least favorite was the Citrus Bliss due to lack of flavor. The others are two thumbs up and would recommend to anyone. What I like best is no jitter feelings at the end of the day. Thanks MTN OPS for a fantastic product.