How much caffeine is in Celsius?

How much caffeine is in each Celsius?

Celsius’s Essential Facts page gives one caffeine figure per US product line: Celsius and Celsius Vibe contain 200 mg per can, Celsius Essentials 270 mg per can, Celsius On-the-Go powders 200 mg per packet, and Celsius Hydration powders “contain no caffeine”. 166

That is the whole answer, and it is shorter than many pages make it look. Celsius’s US site lists 54 products across four lines. Every flavor page was opened for this on November 12, 2026, and each states the same figure as its line, on the label or beside the can. Of the 49 products with caffeine, none states anything but 200 mg or 270 mg. Flavor does not move the number. Sparkling or still, Vibe or plain, it is the same dose.

Celsius looks like sparkling water that went to law school and never slept again

The caffeine comes from more than one place, and the label adds it all up into one number.

Celsius says “The caffeine in CELSIUS products is sourced in part from guarana extract”. Its can labels list guarana seed extract, caffeine and green tea extract among the ingredients. The label’s caffeine figure is one total; Celsius does not say how much comes from each. 166391

How much caffeine is in Celsius Essentials?

Celsius Essentials is the 16 oz can, and it states 270 mg, the same on all 6 flavors. That is 270 mg against the 200 mg of the regular can. By our arithmetic the two are almost the same drink: 16.9 mg per fl oz against 16.7 mg per fl oz. Essentials is mostly more Celsius, in a bigger can.

It is still the line to read twice. One Essentials is 70 mg over the 200 mg single dose EFSA says raises no safety concern for healthy adults, and the can itself says it plainly: at most 1 serving a day, in a line that starts with “WARNING”. What every agency says about a dose that size is in when a dose counts as a lot.

If you remember Celsius Heat or Celsius BCAA, Celsius’s own pages do not list them.

Celsius’s US products page lists four lines: Celsius, Celsius Essentials, Celsius On-the-Go and Celsius Hydration. Celsius Heat and Celsius BCAA are not among them. 395

Celsius vs Red Bull vs Monster: which has more caffeine?

Per can, Celsius beats both. A 12 fl oz Celsius states 200 mg; a 16 fl oz Monster states 160 mg and an 8.4 fl oz Red Bull 80 mg. The 12 fl oz can holds more than the 16 fl oz one. By our arithmetic one Celsius is 2.5 small Red Bulls, and it is 16.7 mg per fl oz against Monster’s 10 mg per fl oz. More cans are ranked in which energy drink has the most caffeine, and the other two have pages of their own: Monster and Red Bull.

Four of those rows come from one company.

Celsius Holdings describes itself as “the owner of energy drink brands CELSIUS®, Alani Nu® and the North American Rockstar® Energy brand”. It says it acquired the Rockstar Energy brand in the US and Canada on August 28, 2025. 400

So the same owner sells you a regular Celsius and an Alani Nu at the same figure, and a Rockstar Original with 161 mg in a bigger 16 fl oz can. Pick by flavor if you like.

Is the caffeine on a Celsius can accurate?

A label is a claim, so someone should check it. Consumer Reports did in 2026, with Celsius Essentials in the batch.

Consumer Reports tested 17 energy drinks and six energy shots against their labels (March 26, 2026). A 16 oz Celsius Essentials, Fruit Burst Sparkling Fruit Punch, labeled 270 mg, tested at 272 mg. Alani Nu Cherry Slush, 12 oz, labeled 200 mg, tested at 215 mg. Rockstar Original, 16 oz, tested at 156 mg against the 160 mg Consumer Reports lists as labeled; Monster Original Green, 16 oz, at 154 mg against 160 mg; Red Bull, 8 oz, at 76 mg against 80 mg, reported as “an average of 76 mg”. Eight of the products held 8 to 16 percent more caffeine than labeled. The article does not say how many cans of each were tested. Fruit Burst is not on Celsius’s US site now. 398

The Celsius came in at 272 mg against a label of 270 mg. That is 2 mg over, about 0.7% by our arithmetic. Alani Nu, also Celsius-owned, was further off: 215 mg against 200 mg. Rockstar Original, the third, tested at 156 mg against the 160 mg Consumer Reports lists. Two caveats. The flavor tested, Fruit Burst, is no longer on Celsius’s US site, and Consumer Reports does not say how many cans it tested. One good result is one good result.

A lab checked the Celsius label and it was right. Nobody has ever said that about my own count

The number on the regular can is not new. A 2007 study that gave Celsius to a small group of adults already printed it.

A 2007 pilot study in the Journal of the International Society of Sports Nutrition, which gave 12 oz of Celsius to 20 adults and measured their metabolic rate, states that “Celsius™ contains 200 mg of caffeine per 12 oz”. That is the label figure: the paper did not measure caffeine, and its table of the drink’s composition lists caffeine inside a proprietary blend with no amount. The study was sponsored by a grant from EliteFx Technologies. 401

Note what that paper is: a label figure repeated in a study sponsored by a grant from EliteFx Technologies, which also supplied the drinks, not a measurement. The 12 fl oz figure was the same then as it is now. The paper cannot tell you whether the can held it.

How many Celsius can you drink a day?

Celsius answers this itself, and its answer is stricter than the can looks.

Celsius’s Essential Facts page says: “We recommend no more than two 12 oz cans, or two servings, per day”; “If you are new to energy drinks, we recommend drinking no more than one CELSIUS product in a 24-hour period. If you have a high tolerance to caffeine, we recommend no more than two CELSIUS beverages, or one Celsius Essentials beverage every 24 hours.” It adds that “up to 400 mg of caffeine – the equivalent to two 12oz cans of CELSIUS Energy Drink – is safe for most individuals”, citing FDA. 166

EFSA concludes that caffeine intakes up to 400 mg a day from all sources, spread through the day, do not raise safety concerns for healthy adults, except pregnant women. FDA cites 400 mg a day for most adults as an amount not generally associated with negative effects, and notes wide variation in how sensitive people are to caffeine and how fast they eliminate it. 225

So two regular cans land exactly on the line, 400 mg, with nothing else counted. One can and one Essentials is 470 mg. A single Essentials leaves 130 mg for the rest of your day, which is one cup of filter coffee with room to spare. Neither line is a cliff, and people differ a lot in how fast they clear caffeine.

One of the newest cans is blunter than the website. Of ten can labels read for this, only one, the 2026 Spritz Vibe Winter Edition, puts a clock on it.

The back label of the US Celsius Spritz Vibe Winter Edition 2026 can says “DO NOT EXCEED 1 SERVING PER 4 HOURS; MAX 2 SERVINGS PER DAY” and “NOT RECOMMENDED FOR PEOPLE WHO ARE CAFFEINE SENSITIVE, CHILDREN UNDER 18, OR WOMEN PREGNANT OR NURSING.” Of 10 US can labels read on November 12, 2026, only this one has the 4-hour wording. The other nine say “DO NOT EXCEED (2) SERVINGS PER DAY” (Fizz Free Pink Lemonade: “DO NOT EXCEED TWO SERVINGS PER DAY”). All six Essentials labels say “WARNING: DO NOT EXCEED (1) SERVING PER DAY.” The On-the-Go packets say “DO NOT EXCEED (2) SERVINGS PER DAY”, and Celsius’s FAQ says it is “not recommended for people sensitive to caffeine, children under the age of 18, or women who are pregnant or nursing.” 397391392393396

The clock is a fair rule of thumb all the same: caffeine’s half-life in a healthy adult averages 4 hours and runs as long as 8 hours, so a can after lunch is still around at bedtime. How long caffeine stays in your system has the curve.

Celsius is sold as a fitness drink, which is also how I describe two cans and a chair

Is Celsius the same strength in Canada?

We cannot tell you, because Celsius Canada does not say.

Celsius’s Canadian site sells Celsius in a 355 ml can whose label reads “CAFFEINATED ENERGY DRINK”, “High Caffeine Content” and “Supplemented / Health Canada”. It prints no caffeine figure in milligrams anywhere on the site, as read on November 12, 2026. 399

Health Canada’s archived 2013 guidance says caffeinated energy drinks are supplemented foods under rules in force since July 21, 2022. Its list of permitted supplemental ingredients allows at most 400 p.p.m. (mg per liter) of caffeine in a beverage with more than 150 p.p.m. from all sources, and says “Beverages as consumed must not contain more than 180 mg”. That row excludes concentrates and drinks represented for physical performance, for hydration or electrolyte replacement, or as flavored water. The label must say “high caffeine content”. 210213

Put the US can against those rules and it does not fit. By our arithmetic a US Celsius holds about 563 mg/L. Canada’s per-liter limit allows about 142 mg in a can that size, and its per-serving cap is 180 mg, so the US can is 20 mg over even the looser of the two. Health Canada’s caffeine rule does not cover drinks represented for physical performance. Celsius Canada’s can calls itself a “caffeinated energy drink” and prints the “High Caffeine Content” statement that rule requires, so it appears to be sold under it. If it is, whatever is in the Canadian can cannot be the US figure. A Canadian listing that prints the US figure is printing a number Celsius Canada does not.

For anything else, read the can in your hand. More cans and colas are on the drinks page, and every figure here is traced on the method page.