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Dietary supplement

Rosemary Extract Powder 500 mg Ingredients & Drug Interactions

by BulkSupplements.com

Rosemary Extract Powder 500 mg label
See full label image
Powder Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Rosemary Extract Powder 500 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Rosemary Extract Powder 500 mg is a dietary supplement by BulkSupplements.com with 1 active ingredient. Its ingredients are commonly taken for memory and concentration, digestive upset, hair growth.Based on those ingredients, 372 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Rosemary Leaf, Stem Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Rosemary Extract Powder 500 mg by BulkSupplements.com

Ask about any prescription or over-the-counter medication and we check it for interactions with Rosemary Extract Powder 500 mg by BulkSupplements.com — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Rosemary Extract Powder 500 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

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

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: rosemary leaf and stem extract at 500 mg per serving. Rosemary is an herb used in cooking and traditional medicine; the extract concentrates its compounds.

The powder also contains dextrin, an inactive ingredient used as a filler to make it easier to mix and measure.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Memory and concentration support.
  • We looked for evidence on: Age-related cognitive decline, Memory, Mental alertness, Cognitive function, Brain health, Focus.
  • The strongest evidence on file: Rosemary is rated "Possibly Effective" for Memory (Natural Medicines).
  • Also on file: Rosemary is rated "Insufficient Reliable Evidence To Rate" for Age-related cognitive decline, Mental alertness.

The evidence supports rosemary for memory as possibly effective — some research backs its use for that purpose. For other conditions the product might be marketed for — age-related cognitive decline, alopecia areata (patchy hair loss), and nonalcoholic fatty liver disease — the data we hold shows insufficient reliable evidence to say whether it works or doesn't.

If you're considering this for one of those other uses, talk with us about what the current research actually shows.

The evidence, ingredient by ingredient Rosemary

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.

Rosemary is safe in normal cooking amounts, but concentrated extracts and undiluted essential oil warrant caution. In food amounts, it's generally well tolerated.

Topically, allergic reactions and contact dermatitis can occur in sensitive people. The undiluted oil and its camphor component carry a theoretical risk of seizures if swallowed.

During pregnancy, food amounts are likely fine, but medicinal doses should be avoided; for breastfeeding, there isn't enough safety data on medicinal doses, so avoid them and stick to culinary use if you're nursing.

Side effects, ingredient by ingredient Rosemary

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 — Rosemary.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 372 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.

Blood thinners and antiplatelet drugs (like warfarin and clopidogrel) carry a Moderate interaction risk — rosemary may increase bleeding. Diabetes medications also rank Moderate — rosemary might lower blood sugar further.

Aspirin and other salicylate-based pain relievers (Trilisate, Disalcid) interact at Moderate severity due to additive salicylate effects. Minor: medications broken down by CYP1A2 enzymes may become less effective.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

If you're looking to support memory and you don't take blood thinners or diabetes medications, this extract is worth a conversation with your pharmacist. Anyone on anticoagulants, antiplatelets, or salicylate-based pain relievers needs to check first — the interaction risk is real.

Talk to us before you add this to your routine, especially if you're pregnant, nursing, or managing a chronic condition.

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 Rosemary Extract Powder 500 mg, straight from the product label.

Brand BulkSupplements.com
Barcode (UPC) X001BLZKA3
Net contents 1 Kilogram(s); 35.3 Ounce(s)
Market status On market
Date entered into DSLD Apr 24, 2025
DSLD ID 330602
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 Rosemary Extract Powder 500 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:
500 mg
Maximum serving Sizes:
500 mg
Servings per container
2000
UPC/BARCODE
X001BLZKA3
IngredientAmount% DV
Rosemary Leaf, Stem Extract500 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

Rosemary Extract Powder 500 mg per serving

Brand IP Statement(s)

BulkSupplements.com Clean & pure bulk supplements

Formulation

Color may vary

Free of: Added sugar, soy, dairy, yeast, 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 use: As a dietary supplement, take 500 mg (about 1/5 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

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Rosemary Extract Powder 500 mg by BulkSupplements.com label

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

Rosemary Extract Powder 500 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Rosemary Extract Powder 500 mg by BulkSupplements.com

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

Serving size500 mg Dosage formPowder Servings per container2000 Amounts shown are per serving.

Rosemary Leaf, Stem Extract

Interacts with
372 drugs
500 mg per serving Form: Rosemary Leaf Extract, Rosemary Stem Extract

Rosemary is a fragrant Mediterranean herb that is safe and flavorful in normal food amounts. Some early research suggests possible benefits for memory...

Rosemary Leaf, Stem Extract monograph & interactions

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

Interaction report

Rosemary Extract Powder 500 mg by BulkSupplements.com Drug Interactions

Want to check YOUR meds against Rosemary Extract Powder 500 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
372Drugs
212 Moderate 160 Minor

Ingredients driving the most interactions

Rosemary Leaf, Stem Extract 372

Individual Drug Interactions

The ingredients in Rosemary Extract Powder 500 mg interact with 372 drugs. Click any drug to see the details.

1 of the 1 ingredient in Rosemary Extract Powder 500 mg interact with drugs. Each result below shows which ingredient is responsible. Rosemary Leaf, Stem Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Rosemary Extract Powder 500 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.

Rosemary Leaf, Stem Extract6 drug types · 372 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, rosemary may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that rosemary inhibits platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, taking rosemary with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research shows that rosemary extract can decrease blood glucose levels in diabetic models. However, research in humans is conflicting. Although rosemary powder decreased blood glucose levels in healthy adults, no change in blood glucose levels was seen in adults with type 2 diabetes, most of whom were taking antidiabetes drugs.

Likelihood Possible Evidence B
Aspirin

Theoretically, rosemary might have additive effects with salicylate-containing drugs such as aspirin.
Rosemary is reported to contain salicylates.

Likelihood Possible Evidence D
Choline Magnesium Trisalicylate (Trilisate)

Theoretically, rosemary might have additive effects with salicylate-containing drugs such as choline magnesium trisalicylate.
Rosemary is reported to contain salicylate.

Likelihood Possible Evidence D
Salsalate (Disalcid)

Theoretically, rosemary might have additive effects with salicylate-containing drugs such as salsalate.
Rosemary is reported to contain salicylate.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, rosemary might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that rosemary induces CYP1A2 enzymes. This effect has not been reported in humans.

Likelihood Unlikely Evidence D
Rosemary Leaf, Stem Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Rosemary Extract Powder 500 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

Rosemary Extract Powder 500 mg by BulkSupplements.com: Common Questions

Does Rosemary Extract Powder 500 mg by BulkSupplements.com interact with any medications?
Yes. Based on its ingredients, Rosemary Extract Powder 500 mg has a known interaction with 372 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Rosemary Extract Powder 500 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.
Does rosemary extract actually help with memory?
For memory specifically, the evidence we have rates rosemary as possibly effective — meaning some solid research supports it, though it's not airtight. For other uses like age-related cognitive decline or hair loss, the evidence isn't established yet in our data.
Can I take this if I'm on a blood thinner?
No — not without talking to your pharmacist or doctor first. Rosemary may increase your bleeding risk when combined with anticoagulants like warfarin or antiplatelets like clopidogrel. This is a Moderate interaction, so it needs a professional review of your specific situation.
What about side effects from the powder itself?
In food amounts, rosemary is well tolerated. At higher medicinal doses, the main concerns are topical (allergic reactions and rashes if it touches your skin) and a theoretical risk of seizures from the undiluted oil. If you're sensitive to herbs or have a history of seizures, mention this product to your pharmacist.
Is it safe to take while pregnant or breastfeeding?
Food amounts of rosemary are likely fine in both. But medicinal doses — like the concentrated extract in this powder — should be avoided during pregnancy. For breastfeeding, there isn't enough safety data on medicinal doses, so stick to culinary use if you're nursing and want to play it safe.
What is dextrin, the other ingredient listed?
Dextrin is an inactive ingredient — a type of starch used as a filler to help the powder mix and measure easily. It's not the active part of the product.
Will this interact with my diabetes or pain-relief medication?
Possibly — rosemary may lower blood sugar, so diabetes drugs could work too well together; and if your pain reliever contains salicylates (like aspirin or Trilisate), rosemary could add to that effect. Run your exact medication through the checker on this page, or ask us to look it up for you.

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

Not sure if Rosemary Extract Powder 500 mg is safe with your meds?

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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.

Rosemary Extract Powder 500 mg label
Go deeper

The Full Monographs Behind Rosemary Extract Powder 500 mg’s Ingredients

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

Herb & supplement monograph

Rosemary

Interacts with 372 drugs

Rosemary is a fragrant Mediterranean herb that is safe and flavorful in normal food amounts. Some early research suggests possible benefits for memory, mood, and hair growth, but the evidenc...

Read the full Rosemary monograph →
Sources

Sources & How We Checked

Rosemary Extract Powder 500 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.

Rosemary 20 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
  3. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  4. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  5. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  6. Cartier LC, Lehrer A, Malo JL. Occupational asthma caused by aromatic herbs. Allergy 1996;51:647-9. DOI
  7. Burkhard PR, Burkhardt K, Haenggeli CA, Landis T. Plant-induced seizures: reappearance of an old problem. J Neurol 1999;246:667-70. PubMed
  8. Swain AR, Dutton SP, Truswell AS. Salicylates in foods. J Am Diet.Assoc 1985;85(8):950-60. DOI
  9. Zhu BT, Loder DP, Cai MX, et al. Dietary administration of an extract from rosemary leaves enhances the liver microsomal metabolism of endogenous estrogens and decreases their uterotropic action in CD-1 mice. Carcinogenesis 1998;19(10):1821-7. PubMed
  10. Debersac P, Heydel JM, Amiot MJ, et al. Induction of cytochrome P450 and/or detoxication enzymes by various extracts of rosemary: description of specific patterns. Food Chem Toxicol 2001;39(9):907-18. PubMed
  11. Debersac P, Vernevaut MF, Amiot MJ, et al. Effects of a water-soluble extract of rosemary and its purified component rosmarinic acid on xenobiotic-metabolizing enzymes in rat liver. Food Chem Toxicol 2001;39(2):109-17. PubMed
  12. Lee JJ, Jin YR, Lee JH, et al. Antiplatelet activity of carnosic acid, a phenolic diterpene from Rosmarinus officinalis. Planta Med 2007;73(2):121-7.
  13. Yamamoto J, Yamada K, Naemura A, et al. Testing various herbs for antithrombotic effect. Nutrition 2005;21(5):580-7. PubMed
  14. Naemura A, Ura M, Yamashita T, et al. Long-term intake of rosemary and common thyme herbs inhibits experimental thrombosis without prolongation of bleeding time. Thromb Res 2008;122(4):517-22. PubMed
  15. Lee JJ, Jin YR, Lim Y, et al. Antiplatelet activity of carnosol is mediated by the inhibition of TXA2 receptor and cytosolic calcium mobilization. Vascul Pharmacol 2006;45:148-53. PubMed
  16. Bakirel, T., Bakirel, U., Keles, O. U., Ulgen, S. G., and Yardibi, H. In vivo assessment of antidiabetic and antioxidant activities of rosemary (Rosmarinus officinalis) in alloxan-diabetic rabbits. J Ethnopharmacol 2-28-2008;116(1):64-73. PubMed
  17. Erenmemisoglu, A., Saraymen, R., and Ustun, S. Effect of a Rosmarinus officinalis leave extract on plasma glucose levels in normoglycaemic and diabetic mice. Pharmazie 1997;52(8):645-646.
  18. Valones MAA, Silva ICG, Gueiros LAM, Leão JC, Caldas AF Jr, Carvalho AAT. Clinical assessment of rosemary-based toothpaste (Rosmarinus officinalis Linn.): A randomized controlled double-blind study. Braz Dent J. 2019;30(2):146-151. PubMed
  19. Quirarte-Báez SM, Zamora-Perez AL, Reyes-Estrada CA, et al. A shortened treatment with rosemary tea (rosmarinus officinalis) instead of glucose in patients with diabetes mellitus type 2 (TSD). J Popul Ther Clin Pharmacol. 2019;26(4):e18-e28.
  20. Al Jamal A. Effect of rosemary (Rosmarinus officinalis) on lipid profiles and blood glucose in human diabetic patients (type-2). African J. Biochem. Res. 2014;8(8):147-50. DOI

See these in context on the Rosemary 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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