Works well for me. I have used this product for several years and I have no complaints. The B12 component improves my mood and increases my energy level. I have not experienced any side effects.

I like this product. It tastes great and gives me just the boost I need. I like that it is mixed with water and flavors the water with good flavored powder. Just drink a little of the water from the bottle before adding the mix or it will bubble over and make a mess.

I had my thyroid removed several years ago, and since then I suffer from heavy fatigue everyday and I'm unable to have caffeine. With Zipfizz, my day feels normal and I have enough energy to make it through any busy day. I am a firm believer that zipfizz is the best! Some flavors are better than others, but since I drink it daily, I keep a variety on hand. Some of my favorite flavors are Grape, Orange soda, Orange cream, Li'mon, Berry, and Ice tea.

My husband practically lives on this stuff. He works in the oilfield where energy drinks are lot allowed but this helps keep him awake and alert throughout his very long nights. The added nutrients help him feel more human than an energy drink would and help keep him hydrated.

I have taken Zip Fizz for a couple of years and it has provided daily lift, giving energy without increasing blood pressure or increased heart rate In lieu of caffeine from morning coffee, this drink does the trick for me every day

Just the right amount of caffeine and vitamins with no crash. Packaged in small containers which makes it convenient to take anywhere.

Energy when needed most.Take during day time,Not before bed.If take before bed you’ll be up all night

I Have used it almost daily for over a decade. I do not recall the last time I called out sick (and was actually sick). It keeps me energized and healthy. Wish I could find a use for all the left over tubes.

Taste is pretty good. Fizzes when powder & water are combined. Has lots of vitamins, so that's what I'm after. Contains caffeine, which I could do without. Convienient vial. Easy peasy. All in all really good product.

These are ok make sure you have drank almost half your water before you add theses as they fizz up. Have to say its not something id buy again as the taste is not that great.