Celsius reviews and discussion

3.9

71% of reviewers would recommend to a friend

Reviews mention

  • Noticeable, sustained energy boost
  • Vibrant, fruity flavor variety
  • Refreshing, lightly sparkling texture
  • Popular non‑carbonated tea options
  • Very high caffeine content
  • Occasional artificial sweetener aftertaste
  • Jittery, sweaty side effects
  • Inconsistent flavor quality

Celsius earns largely positive reviews for delivering a noticeable energy boost—often used pre-workout or mid-day—with popular flavors like Fuji Apple Pear, Peach Mango Green Tea, and the Vibe series. However, reviews also flag drawbacks: very high caffeine that can cause jitters, migraines, heart palpitations, sweats, or a crash for some; polarizing, sometimes artificial-tasting flavors and aftertaste; skepticism about fat-burning claims; and a switch to sucralose that turns off certain buyers.

AI summary based on Thingtesting reviews

189 reviews and posts

  • I love Celsius! I love the flavors and I love that it doesn’t make me naseous like a lot of other energy drinks do

  • Great tasting, lower calories energy drink. I prefer them to other brands like monster.

  • I loved their early root beer flavors before it became a high energy brand. The ones I’ve tried are good but the question is — do I neeeeeed that much caffeine. Yes, sometimes.

  • Love the wide variety of flavors, and how easy they are to find. I can't say that all of the flavors are "winners" to me, but the sparkling strawberry guava and sparkling watermelon in my fridge. The flavors of all of them skew pretty sweet and tart, and sort of artificial, so if you don't like that taste I would avoid. I have never had another energy drink, so I don't really know how Celsius compares to Red Bull and the alternatives, but I have been drinking them on and off for a few years now and really love the burst of energy they give me. I will say, I can never have more than half of it otherwise I am bouncing off the walls. On top of that, I find that if I drink them too frequently I get very painful acne breakouts on my face and neck.

  • Great flavors. Not sure if it provides any health benefit as they say but I do like the flavors.

  • I have drank a lot of Celcius . They have many options to choose from! After a while they started to give me a headache though so I stopped drinking them!

  • Tastes good and has a kick from the amount of caffeine. Also love that it's calorie free. It doesn't taste overly sweet like other energy drinks.

  • Nice pick me up - don't love all the flavors but they have a wide enough range that I think everyone could find ~something~ they enjoy.

  • Their energy drink keeps me awake for hours. I do find some of their flavors unappealing but they get the job done.

  • I am not a huge fan of energy drinks, but do like the fruit flavor of these and the carbonation. The taste is smooth and it does give you a slight energy boost. These are refreshing and healthy and a good energy drink.

  • these taste AMAZING. They genuinely give me energy throughout the day and all of the flavors (sparkling and the tea versions) are great. Not sure if the listed "health" benefits are accurate but a good energy drink. Available at a number of different retailers / easy to find.

  • Personally I love a bubbly drink in yummy flavors and caffeine so it’s a delicious option to have!

  • I don't drink White Claw or Truly. I don't like Pumpkin Spice ANYTHING. I don't do trends just to be cool. If there is anything "basic" about me, it's that I LOVE the peach Celsius. With that being said, pick your flavor wisely. I do love the peach and would absolutely give it five stars. The flavor is crisp and familiar. The aftertaste isn't that bad, imo. HOWEVER, if you're sensitive to artificial sweeteners, this may not be your jam. The other thing to be wary of is what flavor you pick. I have tried the watermelon one and the cola flavored one and both were too sweet. I couldn't finish the cola one and my husband took one sip and cringed. Anyone want a case of cola Celsius minus one? Lol. Neither of us will drink it so we will probably save it for when friends come over. I am being a bit dramatic regarding the taste of the cola one, but it tastes like the makers were trying to hard. I have found that trying the variety of flavors is sort of like trying the Bertie Bott's jellybeans. You don't know what you're getting until it's too late. You may find a winner like I did with the Peach one but you could also get punched in the face, like I did, with the cola one. I suggest you buy one before buying a case. I was way too confident in my purchasing based on my love of the peach flavor. But hey, now I know what to recommend and what to tell you about. So there is that.

  • I was never a fan of energy drinks, but I really enjoy Celsius. Orange is my favorite flavor. I like the added vitamins & large selection of flavors!

  • I don’t like energy drinks. Everyone has been saying these are so good, so I gave it a go. It’s a no for me. They taste okay, but I still feel they are too sweet and syrupy for my liking. Which is my usual complaint with energy drinks, the taste.

  • If you are sensitive to caffeine....this is not for you. I tried a sip of a celsius once and my heart was pounding from it. I appreciate that it is "zero cal" and "zero sugar" but it overall tastes super fake to me. I feel like there are other ways that you can get energy before a workout, like having a snack or something like a banana.

  • I. love. Celsius. I have really never been an energy drink person until I tried it. It's more delicious than any energy drink I've ever tasted. There's a ton of vitamins in every can as well, so it's like an energy drink and a multivitamin in one. I think the kiwi guava is the best flavor, but the orange and tropical vibe flavors are great too!

  • Nice, light flavors and even though these things pack a ton of caffeine, they’ve somehow never made me feel jittery or like my heart is gonna explode? Not sure how they manage that, maybe because there’s no sugar. Recommend these for the 30+ crowd who need a boost to make sure you stay out past midnight!

  • I’m not big on energy drinks but I heard good things from gym goers (“clean” as far as energy drinks go). I had one a day 3 days in a row, and really enjoyed them! On the 4th day I did not have one and suffered brain fog so severe I swore off the drink. The fog lasted the next 2 days.