Best Unflavored Energy Drinks of 2025

"I was on the lookout for something new and stumbled upon these. They have good flavor and good carbonation, unlike some other brands that seem to be cutting back on carbonation lately. The price is also decent."

"I really enjoy the Solimo Silver Energy Drink. It's a great alternative to Sugar Free Monster Ultra, similar in flavor but perhaps a bit sweeter with a touch more citrus. It gives me a solid boost without making me feel shaky. Plus, with 160 mg of caffeine, it's definitely worth a try!"

"I ordered several cases of this drink. It gives me a clean boost without the jitters. The flavor reminds me of pineapple and peach. It's a great deal, especially with the stock-up discount, and I think it's worth a taste test to see if others like it as well!"

"I drink an energy drink for lunch almost every day. These taste great and I love that they are sugar free."

"I tried Prime for the first time and I'm pleased with the enjoyable flavor. It's not the best I've ever had, but it doesn't have those medicinal flavors some drinks do. The boost is noticeable and perfect for a study day or gaming session. At this price, I think I'll be back!"

"I love the blue raspberry flavor! It really gets me through my afternoon slump. I ordered these through Amazon because they can be hard to find in stores."

"I absolutely love these drinks! They give me a nice pick-me-up without any jitters or anxiety. The caffeine from green tea provides a noticeable boost that helps me through my workday."

"I use this for a boost during school. The taste surprised me—not too sweet and refreshing! I felt that my energy remained stable without jitters, which is a huge win for me."

"This has become my favorite energy drink! The flavor is just right—not overly sweet, and it gives me a perfect amount of energy to keep me going without jitters."

"I've been on the lookout for an energy drink that actually works, and I found it in C4 Energy. After trying numerous options, I can say this one consistently delivers the boost I need, whether it’s for my workouts or long workdays. The combination of 200mg caffeine, 1.6 beta-alanine, and other ingredients gives me a clean energy without the crash. Plus, the flavor variety is fantastic!"

"I purchased this as a pre-workout, and I was thoroughly impressed. The taste is amazing, and it provides me with clean energy throughout my workout without any jitters. I usually sip on a can before my workout, and it's become a staple for me. I’ll definitely buy it again!"

"I recently tried the Starburst Strawberry flavor and was blown away! The aroma was inviting, and the taste was refreshingly sweet without any cloying aftertaste. The energy boost was immediate, giving me focused stamina for my workout and beyond. It feels more like a treat than an energy drink, and I plan to keep this flavor stocked!"

"I’ve found that every flavor in the variety pack tastes fantastic. As someone sensitive to caffeine, Bloom's energy drinks don’t make me shaky or hyper. I enjoy a can throughout the morning for a comforting energy boost and delicious taste while I work. I've switched from coffee to these for a refreshing morning option."

"When I tried the Bloom Nutrition Sparkling Energy Drink Variety Pack, I was pleasantly surprised. The flavors are light, refreshing, and not overly sweet or artificial. The caffeine provides a decent lift without the typical crash or jitters. I appreciate that it feels more balanced than other energy drinks."

"I used to drink another brand's energy drink for years until I discovered Bloom! The previous brand had 200 mg of caffeine, while Bloom has just 180 mg, which is perfect for me! I don't feel over-caffeinated or jittery, and the taste is definitely a 10/10! I especially love the cherry lime flavor, as it’s not too sweet."

"I've tried a bunch of energy drinks, and ZOA energy drinks are among the best. They provide a solid energy boost without the jittery feeling, and the flavors are fantastic—who doesn't love Tropical Punch or Pineapple Coconut? For my mornings, I stick with Yerba Magic, which is easy to prepare and has a refreshing peach mango flavor. It keeps my gut healthy and gives a smooth and steady energy boost without crashes. My routine is simple: Yerba Magic in the morning and a ZOA later for an extra push. It's the perfect combo!"

"I recently tried the ZOA Zero Sugar Energy Drinks in a variety pack. While my stepdad loves them, I have mixed feelings. They’re sugar-free and full of electrolytes, vitamin C, and amino acids, which is great, but I noticed a funny aftertaste that reminded me of burnt hair. If you're seeking a healthier energy drink option, they might be worth a shot, especially if you enjoy unique flavors!"

"When I bought these, I was doing the 75 hard challenge. The flavors are great, but after a while, I found myself getting tired of the same taste. Overall, I'd buy them again, though I prefer smaller packs."

"I've found my new favorite energy drink! The OG Luck flavor is just right—not too sweet and no unpleasant aftertaste. With 200mg of caffeine and added ingredients like maca and ginseng, I get a nice energy boost without feeling jittery or crashing later. It's a great, healthier option that’s definitely worth trying!"

"I was impressed with the zero-sugar energy drink. It delivers a smooth energy boost without any crash, and the taste is surprisingly good for a sugar-free drink. The flavors are refreshing and not overly sweet, making it a clean choice for anyone looking to maintain their diet."

"While I appreciate the great flavors and low calories, the sourness of some flavors isn't my favorite. However, aside from that, the overall taste is enjoyable, and I think they offer good value for money with their decent energy boost."

"I used to dread my daily commute, but picking up a Ghost has transformed it! With flavors like Citrus, Faze Pop, and Faze Up, I now enjoy a crisp, flavorful drink that keeps me energized throughout the day."

"Ghost has completely replaced my coffee habit, and my teeth are grateful! The clean energy it provides is perfect—no jitters, just a smooth boost. My favorite flavor is watermelon, but I enjoy most of them."

"After hearing about Ghost from my favorite Twitch streamers, I decided to try it. The Orange Cream flavor tastes just like a popsicle! I love that it’s sugar-free, and it gives me a nice boost without the crash."

"I usually don't drink energy drinks, but after trying one can, I was eager to explore more flavors. Blueberry lemonade is my top pick, and I enjoy having them around. Great taste, provides energy without excessive caffeine, and the presence of amino acids encourages me to try more."

"I absolutely love the zing I get with the first sip! However, towards the end of the can, it does become a bit too sweet for my liking, and I often find myself unable to finish it. Regardless, the energy boost is fantastic, and it keeps me hydrated while I'm on the tennis courts!"

"Though I typically shy away from energy drinks, my husband encouraged me to give this one a shot. It's quite refreshing! The blueberry lemonade strikes a perfect balance of sweet and tart, and after trying the strawberry and grape flavors, I can confidently say they are delicious too. But the blueberry lemonade remains my favorite!"