Zero energy drink (8oz Syrup Concentrate) - Zero Calories, Carbs or Sugar - Stevia - Makes over 1.4 Liters of Energy Drink - Mix your own Energy Drink at Home - Works with SodaStream

Be aware when buying this that it is a very small bottle. I thought it was a normal size (500-750ml) and was stunned when I opened a mail pouch and there it was. Not a good value in my opinion. And didn’t taste all that great.

It came in a tiny bottle and it tastes absolutely disgusting. I drink loads of energy drinks and was looking for something I could make at home with my soda stream. This definitely isn't something I will buy again.

Not great, but not terrible. Just OK. Wanted to try it because it supposedly was not sweetened artificially, but still has artificial coloring in it so I'm not crazy about that.

This stuff is excellent. Tastes almost exactly like a green monster, but since it's made with Stevia, it's much healthier than the zero carb monsters.