Interactions on record — worth a quick check against your medications. Based on 7 of 11 ingredients. Check your meds →
Dietary supplement

Fear-Less Ingredients & Drug Interactions

by Flower Essence Services

Fear-Less label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Fear-Less 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

Fear-Less is a dietary supplement by Flower Essence Services with 11 active ingredients. Its ingredients are commonly taken for menopause symptoms (hot flashes), high cholesterol, bone health/osteoporosis.Based on those ingredients, 1,368 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Berberis aquifolium, Valeriana capitata, Trifolium pratense. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Fear-Less by Flower Essence Services

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

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HelloPharmacist Scorecard of Fear-Less 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 30, 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 11 active ingredients.
  • “infusions of flowers of” is listed as a grouped ingredient — the label doesn't break down how much of each component you get.
  • “Essential Oils” is listed as a grouped ingredient — the label doesn't break down how much of each component you get.

Fear-Less contains 11 ingredients, most of which are flowering plants and essential oils used in traditional herbal and flower essence preparations. The active botanical ingredients include red clover (Trifolium pratense), valerian (Valeriana capitata), Oregon grape (Berberis aquifolium), bergamot orange, English lavender, and labdanum (Cistus ladaniferus), along with rock rose and three others we cannot fully evaluate.

The product is delivered in a liquid form with water and brandy as inactive ingredients.

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: composure and containment when challenged by fear, anxiety or panic.
  • We looked for evidence on: Perioperative anxiety, Pre-procedural anxiety, Stress, Insomnia, panic disorder, generalized anxiety disorder — and 1 related terms.
  • The strongest evidence on file: Valerian is rated "Possibly Effective" for Insomnia (Natural Medicines).
  • Also on file: Bergamot is rated "Insufficient Reliable Evidence To Rate" for Pre-procedural anxiety, Insomnia, Stress.
  • Also on file: Lavender is rated "Insufficient Reliable Evidence To Rate" for Pre-procedural anxiety, Insomnia, Stress.

The evidence for Fear-Less's active ingredients is mixed. Red clover has insufficient reliable evidence for the conditions it's traditionally used for—menopausal symptoms, bone health, and hair loss.

Valerian shows possibly effective evidence for insomnia but insufficient evidence for anxiety, restless leg syndrome, and stress. Oregon grape is possibly effective for psoriasis but lacks solid evidence for eczema and digestive complaints.

Bergamot shows possibly effective evidence for high cholesterol but possibly ineffective for mental alertness. Lavender is possibly effective for menstrual pain but possibly ineffective for cancer pain, with insufficient evidence for hair loss and anxiety.

We hold no effectiveness data for rock rose or labdanum.

The evidence, ingredient by ingredient Red Clover Valerian Oregon Grape Rock Rose Bergamot Lavender Labdanum

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 6 of the 7 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 7 of 7.
  • General safety write-ups exist for 7 of 7.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Red clover is generally well tolerated short-term but carries caution because of its estrogen-like effects; avoid it during pregnancy due to those effects and lack of safety data, and avoid while breastfeeding due to insufficient information. Valerian is generally well tolerated short-term, though long-term safety isn't well studied; common side effects include drowsiness, dizziness, and vivid dreams.

Avoid valerian during pregnancy and breastfeeding. Oregon grape's topical use appears generally well tolerated, but oral use is less well studied; it's likely unsafe during pregnancy and breastfeeding because berberine may pass to infants.

Bergamot essential oil is toxic if swallowed and can cause sun-related skin reactions; avoid it during pregnancy and breastfeeding. Lavender is well tolerated in food amounts; topically, rare cases of a hormone-related condition (gynecomastia) have been reported in young boys using lavender oil.

Use only with your healthcare provider's approval during pregnancy and breastfeeding.

Side effects, ingredient by ingredient Red Clover Valerian Oregon Grape Rock Rose Bergamot Lavender Labdanum

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?
  • 5 of the 7 matched ingredients can interact with medications — Bergamot, Red Clover, Oregon Grape, Lavender, Valerian.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,369 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.

Before taking Fear-Less, double-check if you're on estrogen-containing medications (birth control, hormone therapy), CNS depressants (sleep aids, anti-anxiety pills, opioids), blood pressure medications, blood thinners (anticoagulants), diabetes drugs, methotrexate, or tamoxifen. The product's ingredient list carries Moderate-severity interactions with these categories.

If you take photosensitizing drugs or are on glucuronidated medications, flag those too with your pharmacist.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Fear-Less is a multi-ingredient supplement with several documented interactions—most importantly with estrogen therapy, sedating medications, blood pressure drugs, blood thinners, and diabetes medications. If you're on any prescription or over-the-counter medication, run this product through the interaction checker on this page or talk it over with your pharmacist or doctor before starting.

Those pregnant or breastfeeding should discuss it with their healthcare provider first.

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

Assessment coverage: 7 of 11 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 24, 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 Fear-Less, straight from the product label.

Brand Flower Essence Services
Barcode (UPC) 782932151165
Net contents 1 fl. Oz.; 30 mL
Market status On market
Date entered into DSLD Jan 24, 2014
DSLD ID 29853
Product type Botanical
Supplement form Liquid
Dietary claims / uses No Claim
Intended target group(s) Adult (18 - 50 Years)
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 Fear-Less 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 Spray(s)
Maximum serving Sizes:
4 Spray(s)
UPC/BARCODE
782932151165
IngredientAmount% DV
infusions of flowers of0 NP--
Essential Oils0 NP--
Trifolium pratense0 NP--
Penstemon newberryi0 NP--
Valeriana capitata0 NP--
Berberis aquifolium0 NP--
Mimulus guttatus0 NP--
Helianthemum nummularium0 NP--
Rosa chinensis viridiflora0 NP--
bergamot orange0 NP--
English lavender0 NP--
ylang ylang0 NP--
Cistus ladaniferus0 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.
General Statements

flower essence & essential oil

Composure & containment when challenged by fear, anxiety or panic

BEST BY 06/2022 120611

FDA Statement of Identity

herbal supplement

Suggested/Recommended/Usage/Directions

Suggested use: Spray four times daily in mouth or around body. Shake well before use.

Seals/Symbols

DEMETER(R)

FES Quintessentials(TM)

Formulation

Certified organic by Stellar Certification Services, Inc.

Brand IP Statement(s)

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

General

120611

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

See for yourself

Fear-Less by Flower Essence Services label

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

Fear-Less 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 Fear-Less by Flower Essence Services

These are the 11 active ingredients this product is made of. Select any to open its full monograph.

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

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Infusions of flowers of

0 NP per serving

Essential Oils

0 NP per serving

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

Interaction report

Fear-Less by Flower Essence Services Drug Interactions

Want to check YOUR meds against Fear-Less?

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
1,368Drugs
1,347 Moderate 21 Minor

Ingredients driving the most interactions

Berberis aquifolium 1,218
Valeriana capitata 902
Trifolium pratense 867
bergamot orange 410
English lavender 248

Individual Drug Interactions

The ingredients in Fear-Less interact with 1,368 drugs. Click any drug to see the details.

5 of the 11 ingredients in Fear-Less interact with drugs. Each result below shows which ingredient is responsible. Berberis aquifolium Valeriana capitata Trifolium pratense bergamot orange English lavender

Each ingredient & the kinds of drugs it affects

For each ingredient in Fear-Less with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Berberis aquifolium9 drug types · 1,218 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, Oregon grape might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro and in vivo research suggests that berberine, a constituent of Oregon grape, can inhibit platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, Oregon grape might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Clinical research suggests that berberine, a constituent of Oregon grape, can lower blood glucose levels.

Likelihood Possible Evidence A
Antihypertensive Drugs

Theoretically, Oregon grape might increase the risk of hypotension when taken with antihypertensive drugs.
Animal research suggests that berberine, a constituent of Oregon grape, can have hypotensive effects. Also, an analysis of clinical evidence suggests that taking berberine in combination with amlodipine (Norvasc) can lower systolic and diastolic blood pressure when compared with taking amlodipine alone.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, Oregon grape might increase the sedative effects of CNS depressants.
Animal research suggests that berberine, a constituent of Oregon grape, can have sedative effects.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

Theoretically, Oregon grape might increase the effects and adverse effects of cyclosporine.
Berberine, a constituent of Oregon grape, can reduce metabolism of cyclosporine and increase serum levels. It might inhibit cytochrome P450 3A4 (CYP3A4), which metabolizes cyclosporine.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, Oregon grape might increase serum levels of drugs metabolized by CYP2C9.
Preliminary clinical evidence suggests that berberine, a constituent of Oregon grape, can inhibit cytochrome P450 2C9 (CYP2C9).

Likelihood Possible Evidence B
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, Oregon grape might increase serum levels of drugs metabolized by CYP2D6.
In vitro research and preliminary clinical evidence suggest that berberine, a constituent of Oregon grape, can inhibit cytochrome P450 2D6 (CYP2D6).

Likelihood Possible Evidence B
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, Oregon grape might increase serum levels of drugs metabolized by CYP3A4.
In vitro research and preliminary clinical evidence suggest that berberine, a constituent of Oregon grape, moderately inhibits cytochrome P450 3A4 (CYP3A4).

Likelihood Possible Evidence D
P-Glycoprotein Substrates

Theoretically, Oregon grape might increase serum levels of drugs that are P-glycoprotein (P-gp) substrates.
In vitro research suggests that Oregon grape extracts inhibit P-gp efflux.

Likelihood Possible Evidence D
Berberis aquifolium full monograph & interactions

Valeriana capitata6 drug types · 902 drugs

Alcohol (Ethanol)

Valerian can have additive sedative effects when used concomitantly with alcohol.
Valerian has sedative effects. Theoretically, valerian might have an additive sedative effect when combined with alcohol. Excessive sedation has been reported in an alcohol-abusing individual who took valerian and Gingko biloba. However, the potential interaction between valerian and alcohol has been disputed in other research. Limited evidence suggests that a combination of valerian 160 mg and lemon balm 80 mg (Euvegal) does not cause further deterioration in reaction ability and reaction rate when taken with alcohol as compared to the effects of alcohol alone.

Likelihood Possible Evidence B
Alprazolam (Xanax)

Valerian can have additive sedative effects when used with alprazolam. Also, valerian in high doses might modestly increase alprazolam levels, though this is not likely to be clinically significant.
Valerian has sedative effects. Theoretically, valerian might cause additive sedation when combined with alprazolam. Also, a small pharmacokinetic study shows that taking valerian extract 1000 mg daily (providing 11 mg valerenic acid) might increase alprazolam levels by about 19%. This might be due to valerian's mild inhibition of cytochrome P450 3A4 (CYP3A4). Despite being statistically significant, this increase is not likely to be clinically significant.

Likelihood Possible Evidence B
Cns Depressants

Valerian can have additive sedative effects when used concomitantly with CNS depressant drugs.
Theoretically, concomitant use of valerian and drugs with sedative and anesthetic properties may cause additive therapeutic and adverse effects.

Likelihood Possible Evidence D
Glucuronidated Drugs

Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
In vitro research shows that methanolic valerian extract and valerenic acid might competitively inhibit UDP-glucuronosyltransferase (UGT) 1A1 (UGT1A1) and UGT2B7.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Although some in vitro evidence suggests that valerian affects CYP2D6, clinical pharmacokinetic (PK) studies show that valerian is unlikely to affect the CYP2D6 enzyme. In one PK study, taking valerian 1000 mg (providing about 11 mg valerenic acid) nightly for 14 days did not affect the metabolism of dextromethorphan, a CYP2D6 substrate. In another PK study, taking valerian 125 mg three times daily for 28 days did not affect metabolism of debrisoquine, an accepted CYP2D6 probe-substrate.

Likelihood Unlikely Evidence B
Cytochrome P450 3A4 (Cyp3A4) Substrates

Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Although some in vitro evidence suggests that valerian extract might inhibit or induce CYP3A4, clinical pharmacokinetic (PK) studies show that valerian does not have a clinically significant effect on the CYP3A4 enzyme. In one PK study, taking valerian 125 mg three times daily for 28 days did not affect metabolism of midazolam, an accepted CYP3A4 probe-substrate. In another PK study, taking valerian 1000 mg (providing about 11 mg valerenic acid) nightly for 14 days modestly increases levels of alprazolam, a CYP3A4 substrate, suggesting mild inhibition of CYP3A4. However, this mild inhibition is unlikely to be clinically relevant.

Likelihood Possible Evidence B
Valeriana capitata full monograph & interactions

Trifolium pratense9 drug types · 867 drugs

Estrogens

Theoretically, concomitant use of large amounts of red clover might interfere with estrogen therapy.
Red clover contains phytoestrogens which might have estrogenic activity in some people. Theoretically, red clover might compete for estrogen receptors and interfere with estrogen-containing drug therapy.

Likelihood Probable Evidence D
Methotrexate (Trexall, Others)

Theoretically, red clover might increase the risk of methotrexate toxicity.
In a case report, a 52-year-old female receiving weekly methotrexate injections for psoriasis developed symptoms of methotrexate toxicity, including severe vomiting and epigastric pain, after three days of taking red clover 430 mg daily. Toxicity resolved after red clover was discontinued. However, no liver function tests or methotrexate levels were reported.

Likelihood Possible Evidence D
Tamoxifen (Nolvadex)

Theoretically, the phytoestrogens in red clover might interfere with tamoxifen.
In vitro and animal research suggests that genistein, a constituent of red clover, might antagonize the antitumor effects of tamoxifen. However, there is some evidence from an animal study that red clover does not reduce the efficacy of tamoxifen. Until more is known, tell patients taking tamoxifen to avoid red clover.

Likelihood Possible Evidence D
Anticoagulant/Antiplatelet Drugs

Although some laboratory research suggests that red clover may have anticoagulant and antiplatelet activity, clinical research has not shown this effect.
In vitro research suggests that genistein in red clover has antiplatelet effects, and historically, red clover was thought to have anticoagulant effects due to its coumarin content. However, some experts state that this is unlikely as most natural coumarins have not been shown to have anticoagulant effects, and their content in red clover is low. Additionally, some clinical research in postmenopausal patients found no effect on coagulation or prothrombin time with the use of red clover flowering tops 378 mg daily for 12 months or red clover isoflavone (Rimostil) 50 mg daily for 2 years.

Likelihood Unlikely Evidence B
Caffeine

Theoretically, soy might reduce the clearance of caffeine; however, a small clinical study found no effect.
Red clover contains genistein. Taking genistein 1 gram daily for 14 days seems to inhibit caffeine clearance and metabolism in healthy females. However, this effect does not seem to occur with the lower amounts of genistein found in red clover. A clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of caffeine.

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

Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
In vitro evidence shows that red clover inhibits CYP1A2. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of caffeine, a CYP1A2 probe substrate.

Likelihood Unlikely Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, red clover might increase the levels and clinical effects of drugs metabolized by CYP2C19.
In vitro evidence suggests that red clover weakly inhibits CYP2C19. This interaction has not been reported in humans.

Likelihood Unlikely Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, red clover might increase levels of drugs metabolized by CYP2C9; however, a small clinical study found no effect.
In vitro evidence suggests that red clover might inhibit CYP2C9. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of tolbutamide, a CYP2C9 probe substrate.

Likelihood Unlikely Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
In vitro evidence shows that red clover might inhibit CYP3A4 isoenzymes. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of alprazolam, a CYP3A4 probe substrate.

Likelihood Unlikely Evidence B
Trifolium pratense full monograph & interactions

bergamot orange2 drug types · 410 drugs

Antidiabetes Drugs

Theoretically, taking bergamot with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research suggests that bergamot juice has hypoglycemic effects.

Likelihood Possible Evidence D
Photosensitizing Drugs

Theoretically, topical bergamot essential oil might increase the risk of side effects when used along with photosensitizing drugs.
Bergamot contains bergapten, which has photosensitizing effects.

Likelihood Probable Evidence D
bergamot orange full monograph & interactions

English lavender1 drug type · 248 drugs

Cns Depressants

Theoretically, lavender might potentiate the therapeutic effects and adverse effects of CNS depressants.
Laboratory research suggests that lavender has sedative effects. However, clinical studies in patients taking oral lavender oil (Silexan) 160 mg for 10 weeks or taking lavender flower powder 1 gram daily for 2 months have not reported side effects of drowsiness, sedation, or sleepiness. There is still some concern that higher doses or different preparations of lavender might have additive effects with CNS depressant medications.

Likelihood Unlikely Evidence D
English lavender full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Fear-Less, from the product label.

Flower Essence Services

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

Fear-Less by Flower Essence Services: Common Questions

Does Fear-Less by Flower Essence Services interact with any medications?
Yes. Based on its ingredients, Fear-Less has a known interaction with 1,368 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Fear-Less contains 11 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 Fear-Less safe during pregnancy or while breastfeeding?
No. Red clover and valerian are best avoided during pregnancy; Oregon grape is likely unsafe in pregnancy and while breastfeeding because berberine may pass to your infant. Bergamot, lavender, and rock rose also lack enough safety data during pregnancy and breastfeeding. Talk with your doctor or pharmacist before using this product if you're pregnant, planning to become pregnant, or breastfeeding.
Can I take Fear-Less if I'm on birth control or hormone therapy?
Red clover in this product may interfere with estrogen therapy through its phytoestrogen content and could reduce how well your medication works. Check with your pharmacist or doctor before combining it with birth control or any hormone therapy.
What are the most common side effects of the ingredients in Fear-Less?
Red clover may cause muscle pain, nausea, or vaginal spotting. Valerian commonly causes drowsiness, dizziness, and vivid dreams. Lavender may cause constipation, diarrhea, or nausea. Oregon grape topically can cause itching and skin irritation. These side effects are generally mild and occur in some users but not all.
Does Fear-Less work for anxiety or stress?
Valerian (one of its ingredients) is possibly effective for insomnia, but for anxiety and stress, the evidence is insufficient. Lavender shows insufficient evidence for anxiety as well. The product may not be reliable for those uses based on the data we hold.
Can Fear-Less make me drowsy if I take it with my sleeping pills?
Yes. Both valerian and lavender in this product may add to the sedative effects of CNS depressants like sleeping pills or anti-anxiety medications. Talk with your doctor or pharmacist about whether it's safe to combine them.
What if I'm taking diabetes medication—can I use Fear-Less?
Both Oregon grape and bergamot in this product may theoretically lower blood sugar, which could increase the risk of low blood sugar (hypoglycemia) when combined with diabetes drugs. Check with your pharmacist or doctor before starting this product.

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

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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.

Fear-Less label
Go deeper

The Full Monographs Behind Fear-Less’s Ingredients

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

Herb & supplement monograph

Red Clover

Interacts with 867 drugs

Red clover is a plant rich in isoflavones (plant compounds with weak estrogen-like activity) that is most often used for menopause symptoms like hot flashes. The evidence is mixed and genera...

Read the full Red Clover monograph → Herb & supplement monograph

Valerian

Interacts with 902 drugs

Valerian is an herb whose root is widely used as a natural sleep aid and for calming nerves. The evidence is mixed and often weak, so it may help some people sleep but does not work reliably...

Read the full Valerian monograph → Herb & supplement monograph

Oregon Grape

Interacts with 1,218 drugs

Oregon grape is a shrub whose root contains berberine and related compounds. The strongest (though still modest) evidence is for topical creams that may slightly ease psoriasis; evidence for...

Read the full Oregon Grape monograph → Herb & supplement monograph

Rock Rose

Rock Rose usually refers to plants in the Cistus family, taken as a tea or extract and traditionally used for colds, sore throats, and as an antimicrobial; it is also a Bach flower remedy us...

Read the full Rock Rose monograph → Herb & supplement monograph

Bergamot

Interacts with 410 drugs

Bergamot is a Mediterranean citrus fruit, and its standardized extract is most often used to support cholesterol and heart health, with some early but promising research. The essential oil i...

Read the full Bergamot monograph → Herb & supplement monograph

Lavender

Interacts with 248 drugs

Lavender is a fragrant herb most popular for promoting relaxation, easing anxiety, and supporting sleep, with some encouraging evidence for a standardized oral lavender oil product for anxie...

Read the full Lavender monograph → Herb & supplement monograph

Labdanum

Labdanum is a sticky, fragrant resin from the rockrose plant (Cistus ladanifer) that is used mainly in perfumes, incense, and aromatherapy. There is very little high-quality human research t...

Read the full Labdanum monograph →
Sources

Sources & How We Checked

Fear-Less'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 124 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.

Red Clover 24 references
  1. Kurzer MS, Xu X. Dietary phytoestrogens. Annu Rev Nutr 1997;17:353-81. PubMed
  2. 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
  3. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
  4. This P, De La Rochefordiere A, Clough K, et al. Phytoestrogens after breast cancer. Endocr Relat Cancer 2001;8:129-34. PubMed
  5. Tice J, Cummings SR, Ettinger B, et al. Few adverse effects of two red clover extracts rich in phytoestrogens: a multicenter, placebo-controlled trial. Alt Ther 2001;7:S33.
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Valerian 37 references
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Oregon Grape 21 references
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Rock Rose 2 references
  1. Herbs at a Glance — NIH National Center for Complementary and Integrative Health (NCCIH) Source
  2. Herbal and Dietary Supplements — MedlinePlus (U.S. National Library of Medicine) Source

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Bergamot 17 references
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Lavender 20 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
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Labdanum 3 references
  1. García-González JJ, Crespo V, Barber D, et al. Cistus ladanifer contact dermatitis. Contact Dermatitis 2001;45(4):238.
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  3. Kalus U, Grigorov A, Kadecki O, et al. Cistus incanus (CYSTUS052) for treating patients with infection of the upper respiratory tract. A prospective, randomised, placebo-controlled clinical study. Antiviral Res 2009;84(3):267-71. PubMed

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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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