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Airborne Immune Support Effervescent Tablets Review: Would Buyers Buy It Again?

Disclosure: As an Amazon Associate I earn from qualifying purchases. If you buy through links on this page we may earn a commission at no extra cost to you. How this review was made: We did not test this product in person. This verdict is based on our analysis of retailer ratings, research summaries and news coverage, all listed at the end of this article. Our method.

Depends

A pleasant fizzy vitamin C drink, but do not count on it to ward off colds

Walmart shoppers rate an Airborne 1000 mg effervescent tablet 4.6 out of 5 from 120 ratings, so people who like the format are happy with it. The catch is the evidence. A Cochrane review found regular vitamin C did not reduce how many colds people in the general population caught, and Airborne itself paid out 23.3 million dollars in 2008 to settle a false advertising class action over its cold claims (the company denied wrongdoing). We could not find evidence that the current product fails buyers, so we land on depends: fine as a flavored vitamin C habit, not a cold shield.

Check current price on Amazon → Prices and availability change often, so we don't list them here.

Buy it again if you…

  • enjoy a fizzy flavored drink and want a sugar-free vitamin C tablet
  • just want vitamin C and some zinc in one daily tablet
  • see it as a habit, not a cold preventer

Skip it if you…

  • expect it to stop colds or flu
  • want the simplest, plainest vitamin C
  • are pregnant, on medication or have a health condition, unless a doctor agrees

This review summarizes research and user experiences and is not medical advice. Dietary supplements are not evaluated by the FDA to diagnose, treat, cure or prevent any disease. Check with a doctor or pharmacist before taking it, especially if you are pregnant or breastfeeding, take medication, or have a health condition.

Airborne Immune Support is a tablet you drop in water. It fizzes into a flavored drink. Per a Walmart listing for the elderberry-flavor version, each tablet has 1000 mg of vitamin C and a blend that includes zinc, vitamins A and E, selenium and manganese. The listing says it is sugar free and gluten free, and the directions are one tablet a day in 4 to 6 ounces of water for adults and children 14 and older.

The brand has a famous past: it started as a self-described "miracle cold buster" and later settled a lawsuit over that kind of claim. We looked at that history, the vitamin C research, and what buyers say now.

What owners say, at a glance

4.6 / 5Walmart average across 120 ratingsElderberry-flavor listing
23.3Mdollar class action settlement in 2008Company denied wrongdoing
0.97Cochrane risk ratio for colds with regular vitamin CNo reduction in the general population
Buyer satisfaction
Strong star rating
Evidence for cold prevention
Weak
Marketing history
Past settlement
Convenience of fizzy format
Mostly positive
Simplicity of ingredients
Vitamin C plus a blend

Bars show our editorial summary of how consistently owners praise or complain about each area across all sources — not a lab measurement.

The key details

FormatEffervescent tablet you dissolve in water
Vitamin C1000 mg per tablet (Walmart listing)
Also containsA blend including zinc, vitamins A and E, selenium and manganese (amounts not listed on the page we read)
DirectionsOne tablet daily in 4 to 6 ounces of water, not hot water
AgeAdults and children 14 and older

What buyers like

A well-rated product.The Walmart listing shows 4.6 out of 5 from 120 ratings. The page did not include written reviews, so we can only report the score.
An easy daily routine.The tablet dissolves in about a minute, and the listing says it is sugar free.

What the evidence says

Vitamin C does not clearly prevent colds.A Cochrane review of 29 comparisons and 11,306 people found regular vitamin C did not reduce how often colds happen in the general population. It did shorten colds slightly (8% in adults) and halved risk in people under brief extreme physical stress, such as marathon runners.
Taking it after symptoms start is not proven.The same review found no consistent effect on cold duration or severity when vitamin C was started at symptom onset. The authors said routine supplementation is not justified for the general population.
Little cold prevention from zinc, too.A Cochrane review of 34 trials summarized by the Merck Manual found zinc offered little to no benefit in cold prevention, though it may shorten an ongoing cold.

Where the company's history matters

A 2008 false advertising settlement.Airborne Health agreed to pay 23.3 million dollars to settle a class action over its marketing as a cold-buster. Coverage at the time said its one clinical trial was run by a two-person operation set up for the study. The company denied wrongdoing, and the settlement provided refunds to buyers.
That is history, not a current defect.We did not find evidence that today's tablets fail to deliver what the label says, which is vitamin C and other nutrients. The concern is the gap between the "immune support" image and the research.

How it holds up over time

We found no long-term owner accounts. Because vitamin C is not shown to prevent colds in most people, the practical question is whether you enjoy the habit. The research authors note that people who get colds may still try vitamin C to see if it helps them personally.

Tips

  • Do not use hot water, as the directions say.
  • Stick to one tablet a day, since the label says not to exceed the serving.
  • Do not rely on it in place of vaccines, handwashing or rest.

Pros and cons

What owners love

  • Well rated at retail (4.6 out of 5 on one listing)
  • Easy fizzy format, listed as sugar free
  • 1000 mg of vitamin C plus zinc in one tablet

What owners complain about

  • No strong evidence it prevents colds
  • Brand paid a 2008 settlement over cold claims
  • Ingredient blend amounts were not clear on the listing we read

Other options buyers compare

These vitamin C products come up most often next to Airborne.

ProductFormatConsider it if…
Airborne Effervescent Tablets (this review)Fizzy tablet with zincYou like a flavored fizzy drinkSee on Amazon
Emergen-C 1000 mg Vitamin C
Read our review
Fizzy drink powderYou prefer a powder packetSee on Amazon
Nature Made Vitamin C 500 mgTabletYou want a plain daily vitamin CSee on Amazon

Want a fizzy vitamin C tablet?

Check current sizes and flavors on Amazon.

See it on Amazon →

Frequently asked questions

Does Airborne prevent colds?

We found no strong evidence that it does. A Cochrane review found regular vitamin C did not reduce colds in the general population.

What was the Airborne settlement?

In 2008 Airborne Health agreed to pay 23.3 million dollars to settle a false advertising class action. The company denied wrongdoing.

How much vitamin C is in each tablet?

A Walmart listing for the elderberry-flavor version says 1000 mg per tablet. Check your own package.

Is it medical advice to take it?

No. Talk to a doctor or pharmacist, especially if pregnant, on medication or managing a health condition.

Sources we analyzed

Figures reflect each source as of October 18, 2026 and may change. We summarize owner feedback in our own words and do not reproduce retailer reviews.