← All comparisons Vitamin drink mix

Circadia vs.
Emergen-C.

A megadose of vitamin C with a little sugar, sold as immune insurance. Past what you need, most of it leaves in your urine. We dose what sticks.

Emergen-C is made by Haleon.
The scorecard
11 / 14 dimensions where Circadia leads Emergen-C. Matched on the rest.
Time-of-day design Circadia leads
Circadia Two cans, dosed by hour. RISE a.m., DRIFT p.m.
Emergen-C One packet, any hour
Sleep & recovery support Circadia leads
Circadia DRIFT is built for the wind-down
Emergen-C No evening function
Targeted to real gaps Circadia leads
Circadia Vitamin D, choline, magnesium, glycine
Emergen-C Megadose vitamin C (~1000mg) and B

Heavy on the nutrients you already get.

Canadian owned & operated Circadia leads
Circadia Canadian owned, operated, and founded
Emergen-C Sold in Canada, global brand
Depth of formula Circadia leads
Circadia Full functional stack, every dose printed
Emergen-C Vitamin C plus a B premix
Honesty of claims Circadia leads
Circadia Every milligram on the label
Emergen-C Immune framing, thin support
Stack synergy Circadia leads
Circadia Ingredients chosen to work together
Emergen-C Vitamin C plus a B premix
Ingredient form & quality Circadia leads
Circadia Magnesium glycinate, not oxide
Emergen-C Commodity forms
Electrolyte balance Circadia leads
Circadia Potassium-led, deliberately low sodium
Emergen-C Light
Artificial colours / flavours Both deliver
Circadia None. Juice and vegetable for colour
Emergen-C Varies by flavour
Real-ingredient flavour Circadia leads
Circadia Real juice and botanicals
Emergen-C Sweet citrus mix
Packaging Both deliver
Circadia Recyclable aluminium can
Emergen-C Powder sachets
Sweetener Circadia leads
Circadia A little organic cane and real juice
Emergen-C Cane sugar, ~5.35g (sachet)
Caffeine approach Both deliver
Circadia 50 mg green tea in RISE, 0 in DRIFT
Emergen-C None
Where the gap opens
01

You cannot store vitamin C

Vitamin C is water-soluble. Take far more than you need and the excess is excreted; the giant number on the box mostly ends up in the toilet. We dose nutrients your body actually holds and uses.1

02

It targets the wrong gaps

Most people are not short on vitamin C or B. They are more often short on vitamin D, especially through a Canadian winter, and choline. RISE and DRIFT aim there.234

03

Sugar in a health packet

Around 5 to 6 grams a sachet is modest, but it is still added sugar in something sold as wellness. We keep ours in the same range and skip the immune theatre.5

Sources
  1. 1 NIH Office of Dietary Supplements. Vitamin C is water-soluble; intake above need is excreted in urine. View source ↗
  2. 2 Statistics Canada. A meaningful share of Canadians have vitamin D blood levels below the recommended threshold, especially in winter. View source ↗
  3. 3 NIH Office of Dietary Supplements. Most people consume less choline than the Adequate Intake. View source ↗
  4. 4 NIH Office of Dietary Supplements. The B vitamins are water-soluble and not stored in quantity; excess is excreted. View source ↗
  5. 5 World Health Organization. Guideline: Sugars intake for adults and children (2015). Free sugars should stay under 10 percent, ideally under 5, of daily energy. View source ↗

Competitor figures are approximate, drawn from publicly available nutrition information, and vary by flavour, size and region. Circadia values reflect our standard 355 ml can. Nothing here is medical advice.

Competitor information accurate as of July 30, 2026.

Read the label. Then read ours.

Four to five grams of sugar. Four nutrients that matter, in forms that absorb. Timed to your day.

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