nuCaffeine Ultra | 94 Servings | Caffeine from Coffee Beans + Vitamin B3 + Electrolytes | Includes Handy to-go Tube | Transform Any Drink into an Energy Drink! | No Carbs, No Sugars, No Calories

To begin with, I do wish they had a version that was a bit more concentrated. I add this to my soda stream sparkling water drinks, and the volume of this I need to make a caffeinated drink sometimes lessens my drinks carbonation.Bubly used to make very concentrated caffeinated drops for the sodastream called "Bubly Bounce," for some terrible reason, they discontinued it. This is a great substitute for that for anyone who loves caffeinated sparkling water like me.I've replaced my morning coffee with caffeinated sparkling water for a couple years now, and I've felt so much better. No more kidney pain or stained teeth.It's amazing to have this for a boost of energy. You can add it to anything because it is truly flavorless. I tasted no bitterness.I love the size and design of the jug. It will last a long time and it's so cool and easy to pour. It shows me the company puts its customers happiness above all. Great product! Would love to see a more concentrated version. Wink. Wink.

I wanted to get off of energy drinks and diet pop, so I bought this. Everyone has a different quantity of taste buds, so what is bitter to one person may not be bitter to another. For me, it’s bitter. I wasn’t able to mask the flavor by mixing it into a drink. Rather, I take a shot when I wake up and another at lunch. The bitterness lasts for a mere moment as I follow it up with sparkling water. I don’t get jittery on this, even though I do from coffee. I do recommend this product. And I will be buying another once it’s gone.

I seldom write reviews but I truly enjoy so many things about this product that I feel compelled to share.1-This product gives me the energy boost that I need to get through the day. Whether my day is packed with brain work, driving, or physical labor, I can count on NuCaffeine to get me past energy hurdles.2-I love the versatility of this product. I can add it to anything with no impact on the flavor. I love it with my favorite drinks such as beet juice, coconut water, or cucumber water. I have never tried it with plain water, but I am guessing that it would add a slight flavor to it. Adding to its versatility is the ability to add as little or a much caffeine to your drink of choice as you see fit (within good health guidelines).3- Price point is on target. I usually add about 10ml to my drink after breakfast and again after lunch. One container lasts me about 6 weeks. That is approximately 75-85 energy drinks for around $33. Best deal that I know of.4- No jitters! No upset stomach! No artificial sweeteners! No added food coloring! Just caffeine from green coffee beans.5-I do not care for the taste of coffee, nor do I care for coffee breath. These are not issues with NuCaffeine.6- Last, it comes with a handy little measurement container that easily fits in a purse or backpack. I took it with me on an overseas vacation without a problemI wan not compensated for this glowing review, I just really Ike the product and have been ordering it from Amazon regularly for over two years. Good stuff!

We have been using another brand of the same thing. It was more expensive and didn’t have prime so we tried this. It works great. We mix it in a big cup of water in the morning. I’m used to the taste, so to me it’s tasteless, but caffeine is naturally bitter for those who may be sensitive to that.Update:My husband and I both had an adverse reaction to this product. He got a niacin rash and I had a racing heart. I wish they would have only caffeine with no other vitamins or ingredients then it would be a 5 star product.

Had to cut my cost down on energy drinks and started making my own with Green Tea,NuCaffeine, Stevie and Mango syrup. ItWorks pretty good for me. Im able to adjust how much caffeine per serving:(100mg caffeine per 16oz including caffeine from tea) and no weird taste.

Is what it says! I added it to a prebottled beverage and to juice and it doesn’t affect the flavor. I haven’t tried it with plain water yet but I probably will at some point. It’s very convenient to have the little container it comes with at work in case I need a little more caffeine but don’t want to drink a soda or coffee. Great product!

So my as-is rating for this would be a one as there is in fact an extremely bitter taste, however, I figured out that adding just a little under a teaspoon of light corn syrup to entire bottle eliminates the taste, making it a 5 star product.For years I've started my day with a little bit of VPX Redline in a tall glass of flavored water, both had zero sugar & calories. When VPX was discontinued I was at a loss and tried many different things. At first I thought this was another disappointment but as I don't mind a little sugar in my drink I tried adding a drop of corn syrup to a glass and it made all the difference. Now that I've mixed in about a teaspoon full in the whole bottle, it's super easy to just mix with my flavored water, and I once again have the sweet tart taste I crave. The caffeine itself is great, no shakiness or huge crash. Very mellow but you know it's there. The price really can't be beat.

I’ve been using nuCaffeine for a few months now and it’s been a game-changer! Whether I mix it into my morning smoothie, hot tea, water, or juice, it gives me a smooth, consistent energy boost without the jitters I used to get from energy drinks. I’ve found the flavor to be subtle and completely manageable. Plus, the measuring chamber makes it incredibly easy to control my dosage, so I can customize the caffeine level to fit my needs. Overall, nuCaffeine has helped me cut down on expensive energy drinks and coffee runs, saving me both time and money. If you’re looking for a convenient, effective, and customizable caffeine solution, I highly recommend giving it a try!