This is perfect in the morning to replace my coffee addiction. It has enough caffeine to hold me through the day. Does not have a taste and it's easy to drink. Read more

I really like this water. It has a lot of caffeine. I usually drink coke, but trying to drink more water so I’ve tried this. As said it has 100mg of caffeine nearly that of three cokes; so I use a third of the bottle each go so this works out to 3 cases for me. I’ve noticed if I drink it while at work I’m not dying for a coke by the time I home. This water is way stronger than a cup of coffee like the description tries to compare. I’ll drink more of it before I get on the treadmill, to give me the boost I need. If you are not used to caffeine please drink this slowly and build up to a full bottle, Read more

I’ve bought and tried at least 5 other low/no calorie caffeinated drinks. Since trying Cafeina 6 months ago, I’ve drank about 2-cases per week. There is no better drink on the market. Other caffeinated waters with similar amounts of caffeine for some reason cause me to be shaky and nervous. Whatever version of caffeine used in the Cafeina formulation does not. It is the absolute best alternative to coffee. By far one of the most innovative CPG products in a long time. Read more

I needed a substitute for sugary sports drink and caffeinated beverages, that also didn’t have artificial sugar in it due to allergies. I came across Cafeina and thought it was too good to be true.They are fantastic, tastes like water and has electrolytes and caffeine. I prefer to pour a small amount and mix it in with decaffeinated iced tea or water, but that’s because I don’t want the full amount of caffeine that comes in the bottles which are a great size.Love this product and has become a part of my routine. Read more

I can’t believe I don’t taste any chemical taste like I used to with other energy drinks, AMAZING! I used to be an energy drink addict until I got married (wifey made me stop). I got these and were skeptical and I’m shocked when I had my first sip. A great tasting Natural Spring Water. I would never know they have 100mg of caffeine. I felt a pretty good buzz and didn’t even crash after.This is a must buy for someone like me... the gamer, the office worker, or just to get me through my day Read more

I've been reading a lot of buzz about this product on social media so I thought I'd give it a try. I was never much of a soda drinker because the sugar in sodas only make me thirstier. This water is great because it's water with caffeine. It's exactly what I need to push me through an afternoon at work. Plus, it tastes great. I hope Amazon adds this item to their "Subscribe and Save" line. I've been drinking water since birth so I'm what you might call an expert. This stuff is a premium water.UPDATE: After drinking this water for more than a week now I can say it is everything as advertised and more. No sugar, no carbs, tastes great, no aftertaste of any kind, just the right amount caffeine to get me through the day without giving me the shakes. Even the bottle is great. A premium looking, high quality, sturdy bottle. Not those flimsy, thin, accordion looking bottles everyone else seem to use. This is a premium water and time to order more. Read more

I've always been an avid person who weight trains 5-6 days a week and saw this product on social media. I usually need a little pick me up since my workday starts earlier in the morning and I wanted to get away from darker teeth from coffee and that taste in my mouth. Additionally, I would consume red bull or C4 before my workouts and heard this product does not make you crash like red bull. So its been 4 days now and I've been drinking it in the am and feel great during the day and before my workouts. No fatigue, no sluggish feeling and it tastes like water. The big plus is the electrolytes and amount of caffeine....just the right amount. No other product on the market like this. Kudos to Cafeina. Read more

It passed the "room temp" test which I've had some pretty funky tasting caffeine waters out there. I'll definitely order again. I'd just like to know if their caffeine comes from green coffee bean extract like most other caffeine waters out there. I would definitely recommend. Read more