ラベンダー：不眠症

合計2,477名の参加者を対象とした50件の研究（メタアナリシス5件、RCT 13件を含む）に基づく。50件中42件の研究で肯定的な効果が示されている。

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結論

Lavender is among the most well-researched natural sleep aids, with strong and consistent evidence that it may improve sleep quality through both aromatherapy and oral supplementation.

42 out of 50 studies show positive effects — an 84% positive rate across a large evidence base
Both aromatherapy (inhaled) and oral lavender supplements have shown benefits in RCTs
A 2025 meta-analysis confirmed benefits specifically for sleep disorders in older adults
Works through GABAergic brain pathways and olfactory (smell) nerve pathways

Key Study Findings

systematic review

The Effect of Lavender on Sleep Quality in Individuals Without Insomnia: A Systematic Review.

Dose: None vs: Placebo 効果: 14/20 RCTs showed positive effects None

laboratory/in vitro

Screening natural raw materials and product development for improving insomnia based on network pharmacology and …

Dose: Pinghe Sleep Aromatherapy Product containing sandalwood, lime, angelica sinensis, yilan, sage, and l vs: Placebo 効果: 5 core insomnia targets identified; 597 usable candidate materials identified; key compounds: beta-s None

systematic review and meta-analysis

A systematic review and meta-analysis of clinical trials on lavender for sleep disorders in older …

Dose: Lavender (Lavandula) essential oil; administered via inhalation; dose/concentration varied by study vs: Placebo 効果: SMD: -1.20 (95% CI: -1.73 to -0.68); I²=87.5% None

randomized controlled trial n=67 6 weeks Open-label

Vetiver and Orange Blossom Aid in Lowering Blood Pressure and Heart Rate and Improving Sleep …

Dose: Essential oils (lavender, vetiver, or orange blossom) used via aromatherapy for 4-6 weeks vs: Placebo 効果: Vetiver PSQI: 7.92 to 6.08 (P=0.007); Orange blossom PSQI: 8.32 to 6.47 (P=0.042); Vetiver SYS: 108. 0.007

Review

The Efficacy of Melatonergic Receptor Agonists Used in Clinical Practice in Insomnia Treatment: Melatonin, Tasimelteon, …

Dose: None vs: Placebo 効果: None None

Review

The Role of Essential Oils on Sleep Quality and Other Sleep-related Issues: Evidence from Clinical …

Dose: None vs: Placebo 効果: None None

Key Statistics

研究数

2477

参加者数

↑

Positive

グレード

Referenced Papers

The Effect of Lavender on Sleep Quality in Individuals Without Insomnia: A Systematic Review. Systematic Review

Holistic nursing practice None 6 件の引用

Screening natural raw materials and product development for improving insomnia based on network pharmacology and data mining. Other

Medicine 2026

Lavender improves sleep through olfactory perception and GABAergic neurons of the central amygdala. Other

Journal of ethnopharmacology 2025 8 件の引用

A review on essential oils: A potential tonic for mental wellbeing in the aging population? Review

Maturitas 2025 4 件の引用

A Comprehensive Review of Lavandula stoechas L. (Ustukhuddus) Plant: Phytochemistry, Pharmacology, and In Silico Studies. Review

Chemistry & biodiversity 2025 4 件の引用

Integrative sleep management: from molecular pathways to conventional and herbal treatments. Review

Naunyn-Schmiedeberg's archives of … 2025 4 件の引用

The Role of Essential Oils on Sleep Quality and Other Sleep-related Issues: Evidence from Clinical Trials. Review

Mini reviews in … 2025 3 件の引用

The Efficacy of Melatonergic Receptor Agonists Used in Clinical Practice in Insomnia Treatment: Melatonin, Tasimelteon, Ramelteon, Agomelatine, and Selected Herbs. Review

Molecules (Basel, Switzerland) 2025 2 件の引用

Vetiver and Orange Blossom Aid in Lowering Blood Pressure and Heart Rate and Improving Sleep Quality. Other

Holistic nursing practice 2025 1 件の引用

A systematic review and meta-analysis of clinical trials on lavender for sleep disorders in older adults. Meta-Analysis

Experimental gerontology 2025

Effect of a lavender essential oil and sleep hygiene protocol on insomnia in postmenopausal women: A pilot randomized clinical trial. RCT

Explore (New York, … 2024 16 件の引用

Therapeutic Potential of Essential Oils Against Ulcerative Colitis: A Review. Review

Journal of inflammation … 2024 11 件の引用

Beta-Myrcene as a Sedative-Hypnotic Component from Lavender Essential Oil in DL-4-Chlorophenylalanine-Induced-Insomnia Mice. Other

Pharmaceuticals (Basel, Switzerland) 2024 6 件の引用

Efficacy of Lavender Essential Oil in Reducing Stress, Insomnia, and Anxiety in Pregnant Women: A Systematic Review. Review

Healthcare (Basel, Switzerland) 2024 5 件の引用

Catching ZZZs: A Summary of the Most Common Herbal Medications Taken for Insomnia. Review

American journal of … 2024 3 件の引用

The effectiveness of aromatic extract on insomnia: a meta-analysis. Meta-Analysis

Sleep & breathing … 2024

Lavender essential oil fractions alleviate sleep disorders induced by the combination of anxiety and caffeine in mice. Other

Journal of ethnopharmacology 2023 34 件の引用

Restless Legs Syndrome in Chronic Kidney Disease- a Systematic Review. Systematic Review

Tremor and other … 2023 32 件の引用

The effect of a combined treatment of foot soak and lavender oil inhalation therapy on the severity of insomnia of … RCT

Explore (New York, … 2023 7 件の引用

Differences in Neurotransmitters Level as Biomarker on Sleep Effects in Dementia Patients with Insomnia after Essential Oils Treatment. Other

Biomolecules & therapeutics 2023 7 件の引用

Medicinal Plants Used for Anxiety, Depression, or Stress Treatment: An Update. Review

Molecules (Basel, Switzerland) 2022 90 件の引用

Phytochemical Profiling, Antioxidant and Anti-Inflammatory Activity of Plants Belonging to the Lavandula Genus. Review

Molecules (Basel, Switzerland) 2022 67 件の引用

A critical review on clinical evidence of the efficacy of lavender in sleep disorders. Review

Phytotherapy research : … 2022 30 件の引用

Determination the effects of lavender oil quality of sleep and fatigue of students. Other

Perspectives in psychiatric … 2022 17 件の引用

Effects of Iranian Polyherbal Syrup (Zufa syrup) on oxygen saturation and clinical symptoms in suspected patients with COVID-19: a triple-blinded, … RCT

Medical gas research 2022 12 件の引用

Effect of anxiolytic drug silexan on sleep - a narrative review. Meta-Analysis

The world journal … 2022 9 件の引用

Two representatives of lamiaceae essential oils and their main components cause changes in glutathione related enzymatic activities. Other

Natural product research 2022 5 件の引用

Herbal Remedies and Their Possible Effect on the GABAergic System and Sleep. Systematic Review

Nutrients 2021 85 件の引用

A systematic literature review and meta-analysis of the clinical effects of aroma inhalation therapy on sleep problems. Meta-Analysis

Medicine 2021 52 件の引用

A pilot study on essential oil aroma stimulation for enhancing slow-wave EEG in sleeping brain. RCT

Scientific reports 2021 46 件の引用

Lavender essential oil on postmenopausal women with insomnia: Double-blind randomized trial. RCT

Complementary therapies in … 2021 41 件の引用

The effects of linalool acupoint application therapy on sleep regulation. Other

RSC advances 2021 16 件の引用

Characterization of pharmaco-EEG fingerprint and sleep-wake profiles of Lavandula angustifolia Mill. essential oil inhalation and diazepam administration in rats. Other

Journal of ethnopharmacology 2021 16 件の引用

Efficacy of inhaled Lavandula angustifolia Mill. Essential oil on sleep quality, quality of life and metabolic control in patients with … RCT

Journal of ethnopharmacology 2020 73 件の引用

A Study on the Mechanism of Lavender in the Treatment of Insomnia Based on Network Pharmacology. Other

Combinatorial chemistry & … 2020 6 件の引用

Sedative and hypnotic effects of compound Anshen essential oil inhalation for insomnia. Other

BMC complementary and … 2019 80 件の引用

Beneficial effects of Silexan on sleep are mediated by its anxiolytic effect. RCT

Journal of psychiatric … 2019 32 件の引用

The effect of aromatherapy with lavender (Lavandula angustifolia) on serum melatonin levels. Other

Complementary therapies in … 2019 29 件の引用

A Systematic Review and Meta-analysis on the Effect of Herbal Medicine to Manage Sleep Dysfunction in Peri- and Postmenopause. Other

Journal of menopausal … 2018 12 件の引用

Effectiveness of Silexan oral lavender essential oil compared to inhaled lavender essential oil aromatherapy for sleep in adults: a systematic … Systematic Review

JBI database of … 2018 8 件の引用

The Effect of Aromatherapy on Insomnia and Other Common Symptoms Among Patients With Acute Leukemia. Other

Oncology nursing forum 2017 58 件の引用

Efficacy of orally administered Silexan in patients with anxiety-related restlessness and disturbed sleep--A randomized, placebo-controlled trial. RCT

European neuropsychopharmacology : … 2015 84 件の引用

Essential oils for complementary treatment of surgical patients: state of the art. Review

Evidence-based complementary and … 2014 102 件の引用

A case series on the use of lavendula oil capsules in patients suffering from major depressive disorder and symptoms of … Case Report

Complementary therapies in … 2014 40 件の引用

Nurses experience of aromatherapy use with dementia patients experiencing disturbed sleep patterns. An action research project. Other

Complementary therapies in … 2013 40 件の引用

The effect of lavender aromatherapy on autonomic nervous system in midlife women with insomnia. Other

Evidence-based complementary and … 2012 141 件の引用

Chemical composition and in vitro antimicrobial activity of essential oil of Melissa officinalis L. from Romania. Other

Revista medico-chirurgicala a … 2008 24 件の引用

The sleep-enhancing effect of valerian inhalation and sleep-shortening effect of lemon inhalation. Other

Chemical senses 2006 52 件の引用

[Effects of lavender aromatherapy on insomnia and depression in women college students]. Other

Taehan Kanho Hakhoe … 2006 49 件の引用

Medicinal plants for insomnia: a review of their pharmacology, efficacy and tolerability. Review

Journal of psychopharmacology … 2005 176 件の引用

A single-blinded, randomized pilot study evaluating the aroma of Lavandula augustifolia as a treatment for mild insomnia. RCT

Journal of alternative … 2005 105 件の引用

Safety and efficacy of herbal sedatives in cancer care. Review

Integrative cancer therapies 2004 59 件の引用

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

一般的な使用量

sleep:: 80-160 mg Silexan (oral) or aromatherapy

上限量： Not established for oral; external use generally safe

研究で検討された用量

用量	期間	効果	N
None	--	Positive	--
Pinghe Sleep Aromatherapy Product containing sandalwood, lime, angelica sinensis, yilan, sage, and l	--	Positive	--
Lavender (Lavandula) essential oil; administered via inhalation; dose/concentration varied by study	--	Positive	--
Essential oils (lavender, vetiver, or orange blossom) used via aromatherapy for 4-6 weeks	6 weeks	Positive	67
None	--	Positive	--
None	--	Positive	--
LEO 25.0% concentration via inhalation during light phase	--	Positive	--
None	--	Positive	--

推奨摂取タイミング： 30-60 minutes before bed (oral); at bedtime (aromatherapy)

Safety & Side Effects

報告されている副作用

⚠ GI upset (oral form)
⚠ Headache
⚠ Constipation
⚠ Increased appetite

既知の相互作用

● Sedatives — additive drowsiness with oral lavender
● Blood pressure medications — lavender may lower blood pressure

耐容上限摂取量： Not established for oral; external use generally safe

サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

Frequently Asked Questions

Does ラベンダー help with 不眠症?

Based on 51 studies with 2,477 participants, there is strong evidence from multiple clinical trials that ラベンダー may support 不眠症 management. Our evidence grade is A (Strong Evidence).

How much ラベンダー should I take for 不眠症?

Studies have used various dosages. A commonly studied range is 80-160 mg Silexan (oral) or aromatherapy. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of ラベンダー?

Reported side effects may include GI upset (oral form), Headache, Constipation, Increased appetite. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for ラベンダー and 不眠症?

We rate the evidence as Grade A (Strong Evidence). This rating is based on 51 peer-reviewed studies with 2,477 total participants. The overall direction of effect is positive.

Related Evidence

に関する他の成分：不眠症

メラトニン A バレリアンルート A CBD A オメガ3脂肪酸 A トリプトファン A ビタミンD A

ラベンダー他の症状・状態について

不安に伴う睡眠障害 A

総合評価

合計2,477名の参加者を対象とした50件の研究（メタアナリシス5件、RCT 13件を含む）に基づく。50件中42件の研究で肯定的な効果が示されている。

Evidence Strength92%

High confidence

研究の内訳

RCT (9)Meta (4)Other (38)

代替成分との比較

この症状に対する他の成分との比較をご覧ください。

に関するすべての成分を見る：不眠症

詳しく見る

FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

ラベンダー ： 不眠症