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Cassia vs Ceylon Cinnamon: Telling Them Apart Before You Buy

Quick answer

Cassia vs Ceylon cinnamon comes down to species and coumarin. Cassia is the common, cheaper cinnamon and contains coumarin. Ceylon, or true cinnamon, is generally described as lower in it. Sticks and powders look different, but a capsule label often hides the species. The Reviralis label says only "cinnamon bark extract."

Written by the Goreviralis label deskUpdated · 4 min read

The Reviralis Supplement Facts panel
The Supplement Facts panel as printed on the bottle.

What is the difference between cassia and Ceylon cinnamon?

They come from different trees. Cassia is the cinnamon in most supermarket jars. Ceylon, sold as "true cinnamon," comes from a different species and costs more.

The reason people care is coumarin. NCCIH says cassia contains coumarin (NCCIH, Cinnamon). Ceylon is generally described as holding far less, though the cited source does not give a number, so none is stated here.

Cassia and Ceylon side by side
TraitCassiaCeylon
Common nameCassia, often just "cinnamon"True cinnamon
Where you find itMost grocery jarsSpecialty shops, labeled
PriceLowerHigher
CoumarinPresent (NCCIH)Generally described as lower
Stick lookThick, dark red-brown, one hard curlThin, tan, many soft layers

How can you tell cassia from Ceylon cinnamon?

For whole sticks, look at the layers. For powder and capsules, you usually cannot, and you have to rely on the label or the seller.

  • Sticks: Ceylon rolls into thin, fragile layers like a cigar; cassia is one thick, hard curl.
  • Color: Ceylon is lighter tan; cassia is darker reddish brown.
  • Label: look for a Latin name or the word "Ceylon" or "true cinnamon."
  • Price: very cheap cinnamon is almost always cassia.

A ground powder from either one looks like brown dust. A capsule hides even that.

Which cinnamon is in Reviralis?

The label does not say. It lists "cinnamon bark extract," 13th of 18 names in a 661 mg blend, with no species and no amount.

US rules list blend members from most to least by weight (21 CFR 101.36), so the 13th name can hold at most 661 divided by 13, or 50.85 mg per serving. The real amount may be lower. Because the species is unnamed, nobody can tell from the bottle whether coumarin is a factor.

What to ask the seller

"Is the cinnamon bark extract in this blend cassia or Ceylon, and can you send that in writing?" Use the order desk or [email protected].

The full coumarin picture is in the cassia and coumarin post.

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Who should care most about the difference?

People with liver conditions, people who use cinnamon daily in large amounts and people taking medicines that stress the liver.

The same blend names green tea leaf extract, which NCCIH links to liver injury (NCCIH, Green Tea). The label asks you to consult your healthcare provider before use if you are pregnant or nursing, have a medical condition, have a history of seizures, or take prescription medicine.

Keep taking prescribed medicine, including any antiviral. Get care for yellow skin or eyes or dark urine. Call 911 for trouble breathing or swelling of the face or throat.

Does the cinnamon matter for buying Reviralis?

It is one small unknown among several. Weigh it with the rest of the label.

Read the ingredients page, the blend math and the medicine check. For another blend name with a caution, see licorice root. No source tested Reviralis, and none ties cinnamon to herpes.

FAQ01

Reviralis questions people ask

Is Ceylon cinnamon better than cassia?

Ceylon is generally described as lower in coumarin and costs more. For people concerned about coumarin, that is the point. Neither is shown to treat any disease.

Does cassia cinnamon have coumarin?

Yes. NCCIH states that cassia cinnamon contains coumarin, a compound of concern for the liver at high intakes in sensitive people.

How do I know which cinnamon is in a supplement?

Check the label for the Latin name or the words Ceylon or true cinnamon. If the species is not named, ask the seller in writing.

Is cinnamon from the grocery store cassia?

Usually, yes. Most low-cost jars are cassia. Ceylon is typically sold in specialty shops and labeled as such.

Which cinnamon is in Reviralis?

The label says only cinnamon bark extract. It does not name the species or print an amount, so it is unknown.

Who wrote this02

Written and reviewed by

Written byThe Goreviralis label deskGoreviralis, U.S. stocking partner for Reviralis

Pages built from the label, the sales page and linked NIH, CDC, FDA, FTC, Mayo Clinic and peer-reviewed sources.

Medically reviewed byDr. Aimee Duffy, MD, PhysicianRole: Medical reviewerReview date: October 31, 2026

Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. stocking partner for Reviralis. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.

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