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Dietary supplement

Yarrow Flower Essence Ingredients & Drug Interactions

by Flower Essence Services

Yarrow Flower Essence label
See full label image
Liquid 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 Yarrow Flower Essence 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

Yarrow Flower Essence is a dietary supplement by Flower Essence Services with 1 active ingredient. Its ingredients are commonly taken for wounds and minor bleeding, digestive upset and cramping, colds, flu, and fever.Based on those ingredients, 1 medication has a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are infusion (1:6000) of Achillea millefolium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Yarrow Flower Essence by Flower Essence Services

Ask about any prescription or over-the-counter medication and we check it for interactions with Yarrow Flower Essence by Flower Essence Services — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Yarrow Flower Essence by Flower Essence Services

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

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 1 active ingredient.

This product contains a single active ingredient: an infusion of yarrow (Achillea millefolium) at a concentration of 1 part herb to 6,000 parts liquid. The liquid base includes water and brandy as inactive ingredients.

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 Yarrow product and its label doesn't state a use — see Yarrow'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 yarrow flower essence is effective for any of the uses it's traditionally been applied to — including tonsillitis, wound healing, eczema, period pain, or yeast infection. The data on all these uses shows insufficient reliable evidence to rate.

The evidence, ingredient by ingredient Yarrow

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.

Orally and when used inside the vagina, yarrow appears to be generally well tolerated, though human safety information is limited and allergic reactions can happen. Applied to skin, it can cause dermatitis, hives, or sun-related allergic skin reactions in some people, especially those sensitive to its plant compounds.

Handling the flowers themselves has occasionally triggered nasal congestion and asthma in sensitive individuals. The safety data advises against use in pregnancy because it may affect the uterus, and there isn't enough information to know whether it's safe while breastfeeding — talk with your doctor or pharmacist about either situation before using it.

Side effects, ingredient by ingredient Yarrow

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 — Yarrow.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: lithium.
  • For scale: 1 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.

If you take lithium, check with your pharmacist or doctor before using this product — yarrow may increase lithium levels and require a dose adjustment.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Yarrow essence is generally well tolerated by mouth, but the evidence doesn't yet support that it works for the conditions it's traditionally used for. If you take lithium, skip this product without checking with your pharmacist first — it could raise your lithium levels.

Avoid it if you're pregnant or breastfeeding.

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 Feb 26, 2014.

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 Yarrow Flower Essence, straight from the product label.

Brand Flower Essence Services
Barcode (UPC) 782932110704
Net contents 1 fl. Oz.; 30 mL
Market status On market
Date entered into DSLD Feb 26, 2014
DSLD ID 30286
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Organic
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 Yarrow Flower Essence by Flower Essence Services, 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:
4 Drop(s)
Maximum serving Sizes:
4 Drop(s)
UPC/BARCODE
782932110704
IngredientAmount% DV
infusion (1:6000) of Achillea millefolium0 NP--

Other ingredients: Water, Brandy

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.
Suggested/Recommended/Usage/Directions

Suggested use: Four drops, four times daily

Seals/Symbols

FES Quintessentials(TM)

DEMETER(R)

Formulation

Certified organic by Stellar Certification Services, Inc.

Brand IP Statement(s)

Certified Biodynamic(R) by the Demeter Association, Inc.

General Statements

BEST BY 08/2021 110823

Professional quality backed by three decades of international use.

FDA Statement of Identity

herbal supplement

General

110823

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

See for yourself

Yarrow Flower Essence by Flower Essence Services label

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

Yarrow Flower Essence 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 Yarrow Flower Essence by Flower Essence Services

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

Serving size4 Drop(s) Dosage formLiquid Amounts shown are per serving.

Infusion (1:6000) of Achillea millefolium

Interacts with
1 drug
0 NP per serving

Yarrow is a traditional herb long used for wounds, digestive complaints, and colds, but high-quality human studies are very limited, so its benefits a...

Infusion (1:6000) of Achillea millefolium monograph & interactions

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

Interaction report

Yarrow Flower Essence by Flower Essence Services Drug Interactions

Want to check YOUR meds against Yarrow Flower Essence?

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
1Drugs
1 Moderate

Ingredients driving the most interactions

infusion (1:6000) of Achillea millefolium 1

Individual Drug Interactions

The ingredients in Yarrow Flower Essence interact with 1 drug. Click any drug to see the details.

1 of the 1 ingredient in Yarrow Flower Essence interact with drugs. Each result below shows which ingredient is responsible. infusion (1:6000) of Achillea millefolium

Each ingredient & the kinds of drugs it affects

For each ingredient in Yarrow Flower Essence 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.

infusion (1:6000) of Achillea millefolium1 drug type · 1 drug

Lithium

Theoretically, taking yarrow with lithium might increase the levels and adverse effects of lithium.
Animal research shows that yarrow has diuretic activity. Theoretically, due to these potential diuretic effects, yarrow might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
infusion (1:6000) of Achillea millefolium full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Yarrow Flower Essence, from the product label.

Flower Essence Services

See all Flower Essence Services products
Phone Number
800-548-0075
Pharmacist Counseling Corner

Yarrow Flower Essence by Flower Essence Services: Common Questions

Does Yarrow Flower Essence by Flower Essence Services interact with any medications?
Yes. Based on its ingredients, Yarrow Flower Essence has a known interaction with 1 medication. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Yarrow Flower Essence 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.
Can I use this while pregnant?
No. The safety data advise against yarrow in pregnancy because it may affect the uterus. Talk with your doctor before using it if you're pregnant or thinking of becoming pregnant.
Is it safe to use while breastfeeding?
There isn't enough safety information to know either way. Talk with your pharmacist or doctor for personalized advice if you're breastfeeding.
Can it cause skin reactions?
Yes. Applied topically, yarrow can cause dermatitis, hives, or sun-related allergic skin reactions in some people. Handling the flowers can occasionally trigger nasal congestion or asthma in sensitive individuals.
Does yarrow actually work for the things it's traditionally used for?
The evidence we hold doesn't establish that it's effective for tonsillitis, wound healing, eczema, period pain, or yeast infection. All of these uses show insufficient reliable evidence to rate.
What's in this product?
It's a yarrow flower infusion in water and brandy. There are no other active ingredients.

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

Not sure if Yarrow Flower Essence 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.

Yarrow Flower Essence label
Go deeper

The Full Monographs Behind Yarrow Flower Essence’s Ingredients

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

Herb & supplement monograph

Yarrow

Interacts with 1 drug

Yarrow is a traditional herb long used for wounds, digestive complaints, and colds, but high-quality human studies are very limited, so its benefits are not well proven. It is generally used...

Read the full Yarrow monograph →
Sources

Sources & How We Checked

Yarrow Flower Essence'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 8 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.

Yarrow 8 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Uter, W., Nohle, M., Randerath, B., and Schwanitz, H. J. Occupational contact urticaria and late-phase bronchial asthma caused by compositae pollen in a florist. Am J Contact Dermat. 2001;12(3):182-184. DOI
  3. Schempp, C. M., Schopf, E., and Simon, J. C. [Plant-induced toxic and allergic dermatitis (phytodermatitis)]. Hautarzt 2002;53(2):93-97.
  4. Jovanovic, M., Poljacki, M., Duran, V., Vujanovic, L., Sente, R., and Stojanovic, S. Contact allergy to Compositae plants in patients with atopic dermatitis. Med Pregl. 2004;57(5-6):209-218. PubMed
  5. Becker LC, Bergfeld WF, Belsito DV, et al. Safety assessment of Achillea millefolium as used in cosmetics. Int J Toxicol. 2016;35(3 suppl):5S-15S.
  6. Zakeri S, Esmaeilzadeh S, Gorji N, Memariani Z, Moeini R, Bijani A. The effect of Achillea millefolium L. on vulvovaginal candidiasis compared with clotrimazole: A randomized controlled trial. Complement Ther Med. 2020;52:102483. PubMed
  7. de Souza P, Crestani S, da Silva Rde C, et al. Involvement of bradykinin and prostaglandins in the diuretic effects of Achillea millefolium L. (Asteraceae). J Ethnopharmacol. 2013 Aug 26;149(1):157-61. PubMed
  8. Miranzadeh S, Adib-Hajbaghery M, Soleymanpoor L, Ehsani M. Effect of adding the herb Achillea millefolium on mouthwash on chemotherapy induced oral mucositis in cancer patients: A double-blind randomized controlled trial. Eur J Oncol Nurs. 2015;19(3):207- PubMed

See these in context on the Yarrow 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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