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

  • This is a pretty good drink although it has a little bit of an after-taste for me. It does come in some good flavors overall.

  • If you need to power through the morning, exam testing, or want to feel to closest thing to a McDonald’s sprite - drink this. Orange is the best flavor

  • I love Celsius!! They manage to make me feel the right amount of energized and ready to go without making me feel like I’m on crack or something lol

  • Great pre-work out or Red Bull replacement. I've noticed it only gives me extra juice for the first 20-30 mins of a workout but that still helps. Less artificial-tasting than a lot of energy drinks. The peach mango green tea flavor is elite.

  • Overall nice no sugar energy drink... typically buy in bulk at Costco to reduce overall cost/can. Decent variety of flavors, and overall refreshing drink.

  • It's become our household favorite. Great flavors

    None
  • Celsius gives me the energy I need to get through a long day and sometimes a workout. I like that it provides me with long lasting energy without the jitteriness that I get from some other brands.

  • My only go to drink every day I have a whole fridge full of them in my room especially the orange flavour!!

  • This is a good option to replace energy drinks. I liked, but I wouldn’t say I loved it cause for my taste it is very sweet. I’m not able to have a full can but for sure half of it. It is wonderful to have alternative drinks and food for those who are seeking healthier options to eat and drink.

  • One of the best energy drinks ive had, and its a little healthier than standard/well known brands which is great.

  • Fantasy Vibe tastes like and old fashioned dreamsicle I love it so much. I wish there were smaller cans, drinking a full Celsius is a bit harsh on my stomach

  • Although this doesn't give me a great energy boost since I have a high caffeine tolerance, I love that this is a low calorie, sugar free drink option filled with vitamins. It helps when I'm craving sugary drinks/sweets and is my go to pre workout option without the jittery feeling. It is a bit pricey though.

  • I'm a little addicted to these. I also like the extra little vitamins and nutrients in these, like green tea extract — makes me feel healthier as the energy drink vibrations start kicking in.

  • Celcius is literal crack to me. Like I don't mean to be offensive or overdramatic, but I fully am addicted. It bolts me up every morning. Yes, I drink one every morning. To be fair, I work long hours and fit in a workout or run every single day. I do not recommend for anyone slightly sensitive to caffeine, and I think it is super important to get in an intense workout or activity on it. You do need to work it off in a way. My preferred flavors are Orange, Mango and Passionfruit, and Peach Mango Green Tea. The others I am not a huge fan of. But worth trying a few to find what you like. I prefer buying at 7/11. You typically get the best deals there. Like $2 per can when you buy 3 etc. Otherwise, subscribe and save on Amazon.

  • Peach Mango Green Tea is the best flavor, and I enjoy that it's not carbonated.

  • I used to drink these often, but now I feel like they have an artificial flavor to them. They also started to cause a lot of jitters for me.

  • Huge caffeine addict and love caffeine but this product scares me. It gives you A LOT of energy but at the cost of feeling like your heart is about to burst out of your chest. It doesn’t have as many good ingredients as the brand promises it does either.

  • I have one everyday as a pre-workout. Anything green tea or guava is my go to!