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Dietary supplement

Ceylon Cinnamon Bark Extract Powder 1000 mg Ingredients & Drug Interactions

by BulkSupplements.com

Powder Category: Botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Ceylon Cinnamon Bark Extract Powder 1000 mg is a dietary supplement by BulkSupplements.com with 1 active ingredient. Its ingredients are commonly taken for blood sugar support, digestive upset, antioxidant support.Based on those ingredients, 442 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Ceylon Cinnamon Bark Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: Ceylon Cinnamon Bark Extract at 1000 mg per serving. Cinnamon bark extract is a concentrated form of the spice, stripped down to its active compounds.

The only other ingredient listed is dextrin, an inactive filler used in the powder.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Cassia Cinnamon product and its label doesn't state a use — see Cassia Cinnamon's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold doesn't establish that this cinnamon extract is effective for any of the conditions studied — amenorrhea, angina, common cold, diabetes, diarrhea, and unhealthy cholesterol levels all show insufficient reliable evidence to rate it. That doesn't mean it doesn't work; it means the science isn't settled enough yet to say one way or the other.

The evidence, ingredient by ingredient Cassia Cinnamon

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Cinnamon in food amounts is generally well tolerated. At supplement doses — especially high doses or long-term use — there's a concern about liver harm.

This extract contains coumarin, a compound that can damage the liver in very high amounts or over extended time. In clinical trials, cinnamon doses of 360 mg to 12 grams daily for 3 months didn't significantly change liver tests, but caution is still warranted with long-term use.

A small number of trial participants reported a rash or, in one case, low blood sugar (hypoglycemia) with a seizure, though it's unclear whether cinnamon caused that seizure. During pregnancy and breastfeeding, food amounts are fine, but avoid this supplement at medicinal or high-dose amounts — there isn't enough safety data to be certain.

Side effects, ingredient by ingredient Cassia Cinnamon

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Cassia Cinnamon.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 443 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check your exact medications if you take antidiabetes drugs (blood sugar control) or hepatotoxic drugs (any drug known to affect the liver) — both have Moderate interactions with this extract. Your pharmacist can help you decide if it's safe for your specific situation and whether your medication doses need adjustment.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product is worth considering if you're looking for a cinnamon supplement and have no liver conditions or diabetes. If you take diabetes medications or any drug that can stress the liver, check with your pharmacist first — dose adjustments to your medications might be needed, and long-term use at supplement levels carries liver concerns.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Apr 24, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Ceylon Cinnamon Bark Extract Powder 1000 mg, straight from the product label.

Brand BulkSupplements.com
Barcode (UPC) X000JC158L
Net contents 100 Gram(s); 3.5 Ounce(s)
Market status On market
Date entered into DSLD Apr 24, 2025
DSLD ID 330604
Product type Botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1000 mg
Maximum serving Sizes:
1000 mg
Servings per container
100
UPC/BARCODE
X000JC158L
IngredientAmount% DV
Ceylon Cinnamon Bark Extract1000 mg--

Other ingredients: Dextrin

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Ceylon Cinnamon Bark Extract Powder 1000 mg per serving

Brand IP Statement(s)

Bulksupplements.com Clean & pure bulk supplements

Formulation

Color may vary

Free of: Added sugar, soy, dairy, gluten

FDA Disclaimer Statement

Warning: This product is not intended to diagnose, treat, cure, or prevent any disease.

Precautions

Always consult a physician before taking any dietary supplement.

Keep out of reach of children.

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, take 1000 mg (about 1/3 tsp) once or twice daily, or as directed by a physician.

Storage

Contents are sold by weight, not volume. Settling may occur. Store in a dry, cool place

General Statements

Use an accurate milligram scale. New

See for yourself

Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1000 mg Dosage formPowder Servings per container100 Amounts shown are per serving.

Ceylon Cinnamon Bark Extract

Interacts with
442 drugs
1000 mg per serving Form: Cinnamomum Bark Extract

Cassia cinnamon is the common, inexpensive cinnamon used in cooking, and it is also taken as a supplement, most often for blood sugar support. The evi...

Ceylon Cinnamon Bark Extract monograph & interactions

Other (inactive) ingredients: Dextrin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com Drug Interactions

Want to check YOUR meds against Ceylon Cinnamon Bark Extract Powder 1000 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

Go to the checker
442Drugs
442 Moderate

Ingredients driving the most interactions

Each ingredient & the kinds of drugs it affects

For each ingredient in Ceylon Cinnamon Bark Extract Powder 1000 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Ceylon Cinnamon Bark Extract2 drug types · 442 drugs

Antidiabetes Drugs

Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Cassia cinnamon may lower blood glucose levels, and have additive effects in patients treated with antidiabetic agents. Dose adjustments to diabetes medications might be necessary.

Likelihood Possible Evidence B
Hepatotoxic Drugs

Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
There is some concern that ingesting large amounts of cassia cinnamon for an extended duration might cause hepatotoxicity in some people. Cassia cinnamon contains coumarin, which can cause hepatotoxicity in animal models. In humans, very high doses of coumarin from 50-7000 mg/day can result in hepatotoxicity that resolves when coumarin use is discontinued. Lower amounts might also cause liver problems in sensitive people, such as those with liver disease or those taking potentially hepatotoxic agents.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Ceylon Cinnamon Bark Extract Powder 1000 mg, from the product label.

BulkSupplements.com

See all BulkSupplements.com products
Name
BulkSupplements.com
Street Address
7511 Eastgate Rd
City
Henderson
State
NV
ZipCode
89011
Web Address
BulkSupplements.com
Pharmacist Counseling Corner

Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com: Common Questions

Does Ceylon Cinnamon Bark Extract Powder 1000 mg by BulkSupplements.com interact with any medications?
Yes. Based on its ingredients, Ceylon Cinnamon Bark Extract Powder 1000 mg has a known interaction with 442 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Ceylon Cinnamon Bark Extract Powder 1000 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to use if I take diabetes medication?
Not without talking to your pharmacist first. Cinnamon may lower blood sugar, and combining it with diabetes drugs could drop your blood sugar too low. Your medication dose might need to be adjusted.
Can I take this if I have liver disease or take medications that affect my liver?
You should check with your pharmacist or doctor before starting. Large doses of this cinnamon extract over time can stress the liver, especially if you're already taking medications that do the same. There's a real safety concern with long-term use at supplement doses.
Is this cinnamon extract proven to work for diabetes or cholesterol?
The evidence we hold doesn't establish that it's effective for diabetes, cholesterol, or the other conditions studied. That doesn't mean it doesn't help, just that the science isn't clear enough yet.
Is it safe during pregnancy or breastfeeding?
Food amounts of cinnamon are fine, but avoid this supplement at medicinal or high-dose amounts during pregnancy and breastfeeding. There isn't enough safety data to know for sure it's okay. Talk with your doctor or pharmacist if you're interested in using it.
What side effects have been reported?
A small number of people in trials reported a rash. There's also a documented case of someone with a cinnamon allergy developing eyelid dermatitis that cleared a few days after stopping. One person had a low blood sugar seizure, though it's unclear if cinnamon caused it.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Ceylon Cinnamon Bark Extract Powder 1000 mg is safe with your meds?

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Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Ceylon Cinnamon Bark Extract Powder 1000 mg label
Go deeper

The Full Monographs Behind Ceylon Cinnamon Bark Extract Powder 1000 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Sources

Sources & How We Checked

Ceylon Cinnamon Bark Extract Powder 1000 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 20 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Cassia Cinnamon 20 references
  1. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  2. Khan A, Safdar M, Ali Khan M, et al. Cinnamon improves glucose and lipids of people with type 2 diabetes. Diabetes Care 2003;26:3215-8. PubMed
  3. De Benito V, Alzaga R. Occupational allergic contact dermatitis from cassia (Chinese cinnamon) as a flavouring agent in coffee. Contact Dermatitis 1999;40:165. PubMed
  4. Drake TE, Maibach HI. Allergic contact dermatitis and stomatitis caused by a cinnamic aldehyde-flavored toothpaste. Arch Dermatol 1976;112:202-3.
  5. Press release. Cinnamon capsules to reduce blood sugar are medicinal products! Efficacy has not been scientifically proven - some products contain high levels of coumarin. Federal Institute of Risk Assessment (BfM), Germany, November 11, 2006. Available a
  6. Felter SP, Vassallo JD, Carlton BD, Daston GP. A safety assessment of coumarin taking into account species-specificity of toxicokinetics. Food Chem Toxicol 2006;44:462-75. PubMed
  7. Crawford P. Effectiveness of cinnamon for lowering hemoglobin A1C in patients with type 2 diabetes: a randomized, controlled trial. J Am Board Fam Med 2009;22:507-12. PubMed
  8. Akilen, R., Tsiami, A., Devendra, D., and Robinson, N. Glycated haemoglobin and blood pressure-lowering effect of cinnamon in multi-ethnic Type 2 diabetic patients in the UK: a randomized, placebo-controlled, double-blind clinical trial. Diabet.Med. 2010; PubMed
  9. Lu T, Sheng H Wu J Cheng Y Zhu J Chen Y. Cinnamon extract improves fasting blood glucose and glycosylated hemoglobin level in Chinese patients with type 2 diabetes. Nutr Res. 2012;32(6):408-412. PubMed
  10. Choi, J., Lee, K. T., Ka, H., Jung, W. T., Jung, H. J., and Park, H. J. Constituents of the essential oil of the Cinnamomum cassia stem bark and the biological properties. Arch Pharm Res 2001;24(5):418-423.
  11. Altschuler JA, Casella SJ, MacKenzie TA, Curtis KM. The effect of cinnamon on A1C among adolescents with type 1 diabetes. Diabetes Care 2007;30(4):813-6. PubMed
  12. Stoecker BR, Zhan Z, Luo R, et al. Cinnamon extract lowers blood glucose in hyperglycemic subjects. FASEB J. 2010;22:722.1 (Abstract only). DOI
  13. Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
  14. Isaac-Renton M, Li MK, Parsons LM. Cinnamon spice and everything not nice: many features of intraoral allergy to cinnamic aldehyde. Dermatitis. 2015;26(3):116-21. PubMed
  15. Vandersall A, Katta R. Eyelid dermatitis as a manifestation of systemic contact dermatitis to cinnamon. Dermatitis. 2015 Jul-Aug;26(4):189. PubMed
  16. Wickenberg J, Lindstedt S, Nilsson J, Hlebowicz J. Cassia cinnamon does not change the insulin sensitivity or the liver enzymes in subjects with impaired glucose tolerance. Nutr J 2014 Sep 24;13:96. PubMed
  17. Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
  18. Shekarchizadeh-Esfahani P, Heydarpour F, Izadi F, Jalili C. The effect of cinnamon supplementation on liver enzymes in adults: A systematic review and meta-analysis of randomized controlled trials. Complement Ther Med 2021;58:102699. PubMed
  19. Bernaola J, Valverde-Monge M, Otal-Buesa M, Cullen D, Heras-Mendaza F. Cinnamon allergic contact cheilitis. Contact Dermatitis 2023;88(5):418-419. PubMed
  20. Patel K, Howard M, Tate B. Cheilitis caused by allergic contact dermatitis to cinnamon in chai tea: A case report. Contact Dermatitis 2023;88(3):239-240. PubMed

See these in context on the Cassia Cinnamon monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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