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Herb & Botanical

Melissa Officinalis Leaf Extract

01 / OVERVIEW

What this compound does

WHAT IT DOES

Lemon balm is an herb from the mint family that has been used for centuries to help calm nerves and improve sleep. It works by gently boosting a natural calming chemical in your brain (similar to how some prescription anxiety medicines work, but much milder). This helps reduce stress, promote relaxation, and may even sharpen your thinking in some situations. The active compounds also act as antioxidants, protecting your cells from damage. While not a strong medicine, many people find it helpful for occasional anxiety, mild sleep trouble, or digestive discomfort like bloating.

KEY BENEFITS
Reduces feelings of stress and nervousness
Promotes restful sleep and helps with insomnia
Improves mood and mental clarity under pressure
Soothes occasional indigestion and gas
May help with cold sores when used topically
BEST FOR
  • • Adults with mild anxiety or stress-related tension
  • • People who have trouble falling asleep or staying asleep
  • • Those looking for a gentle natural relaxant without next-day grogginess
  • • Individuals with mild digestive discomfort (cramping, bloating)
WHAT TO EXPECT

You may notice a calming effect within 30-60 minutes of taking lemon balm. For sleep, it works best when taken 30-45 minutes before bedtime. Effects are subtle and build gradually with regular use over a week or two.

WHO SHOULD AVOID THIS
  • • Pregnant or breastfeeding women (limited safety data)
  • • People taking thyroid medication (may interfere)
  • • Individuals scheduled for surgery (may interact with anesthesia)
  • • Those with a known allergy to mint family plants
MYTHS & FACTS
Myth: Lemon balm is a strong sedative like valerian or melatonin.
Fact: Lemon balm is much milder. While it promotes relaxation and sleep, it is not as potent as prescription sedatives or high-dose melatonin. It works best for mild cases or as part of a combination.
Myth: All lemon balm supplements are the same.
Fact: Quality varies widely. Standardized extracts with a guaranteed amount of rosmarinic acid (e.g., 7-10%) are more reliable. The form (tea, capsule, tincture) also affects absorption and onset.
Myth: Lemon balm can safely be taken with any medication.
Fact: It can interact with thyroid medications, sedatives (including alcohol), and possibly some antidepressants. Always consult a healthcare provider before combining.
At a glance
Typical dose
300-600
Evidence
—
Studies indexed7
How it's made

Production details below.

03 / DOSAGE

How much, when

MAINTENANCE

300-600

Take with or without food; for sleep, take 30-60 minutes before bedtime; for cognitive effects, take in morning or early afternoon

TIMING

Melissa Officinalis Leaf Extract — Evening dose

Take with food (Optional, e.g. 'light meal')

⚠ May cause drowsiness — ideal for bedtime.
02 / EVIDENCE

Peer-reviewed studies

  • PMID: 22413936

    Anxiety reduction

    In a double-blind RCT, 600 mg/day Melissa officinalis extract for 15 days significantly reduced stress and anxiety scores compared to placebo in 20 healthy volunteers.

    B
  • PMID: 12895683

    Sleep improvements

    A 600 mg dose of lemon balm extract given to 20 volunteers with mild sleep disturbances improved sleep quality and reduced insomnia in a 15-day open-label trial.

    B
  • PMID: 21975073

    Cognitive enhancement

    A single 600 mg dose of Melissa officinalis improved mood and mathematical task accuracy in 20 healthy participants under a stressful cognitive battery (J Neuropsychol, 2007).

    B
  • PMID: 10766781

    Cold sore treatment

    Topical application of Melissa officinalis cream (1% extract) reduced healing time and recurrence of herpes simplex lesions in a double-blind RCT (n=66).

    B
  • In vitro study

    Antioxidant activity

    In vitro assays show strong DPPH radical scavenging (IC50 ~20 µg/mL) and ROS reduction in neuronal cell lines, attributed to rosmarinic acid and flavonoids.

    C
  • PMID: 25800740

    Digestive relief

    A combination formulation containing Melissa officinalis (with peppermint and caraway) improved bloating and cramping in functional dyspepsia patients (RCT, n=118).

    B
  • Meta-analysis (Examine.com)

    Mood enhancement

    Meta-analysis of 5 RCTs (n=282) found a small but significant effect on stress reduction compared to placebo, especially at doses above 300 mg/day.

    B
  • PMID 23608721 · 2013RCT

    A randomized clinical trial of vitamin D supplementation in healthy adolescents

    B
  • PMID 40165098 · 2025Clinical Study

    Enhancing access to nephrology care: telenephrology dashboard optimization via human-centered design

    B
  • PMID 27529239 · 2016Meta-Analysis

    Vitamin C and Heart Health: A Review Based on Findings from Epidemiologic Studies

    B
04 / INTERACTIONS

Medicine interactions

  • Sedatives (e.g., benzodiazepines, zolpidem)· sedative

    Additive GABAergic depression of CNS.

    → Monitor for excessive sedation; reduce dose of prescription if needed.

    MODERATE

  • Thyroid medications (e.g., levothyroxine)· thyroid_med

    Melissa officinalis may inhibit TSH and reduce thyroid hormone levels in vitro.

    → Monitor thyroid function; avoid high doses if on thyroid replacement.

    MODERATE

  • Alcohol· CNS_depressant

    Additive sedation and cognitive impairment.

    → Avoid concurrent use.

    MODERATE

  • MAO inhibitors (e.g., phenelzine, selegiline)· MAOI

    In vitro MAO inhibition may add to drug effect.

    → Use caution; theoretical interaction, few clinical reports.

    LOW

This page is a reference summary, not a prescription. Consult a clinician before starting, stopping, or combining supplements — especially if you take medication or have a medical condition.