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Lemon Balm

aka Melissa officinalis

Mild anxiolytic with cognitive calming effects via GABA-T inhibition.

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Overview

Mild anxiolytic with cognitive calming effects via GABA-T inhibition.

Natural sources
  • Melissa officinalis leaf
Common forms
  • Standardized extract

Forms & variants of Lemon Balm

Different chemical forms of Lemon Balm behave differently. Browse each form's mechanism, bioavailability, and best-use context.

Mechanism of action

Inhibits GABA transaminase, increasing GABA tone.

Pathways
  • · GABA-T inhibition

Effects on the body

Decreases
Anxiety
Supports
Calm focus

Organ system effects

Brain & CNS

Improves mood and accuracy on cognitive tasks.

Evidence-based benefits

Reduces stress and improves calm focus

Moderate evidence

Potential side effects

Common
  • · Lemon Balm is generally well-tolerated at evidence-based doses
  • · Mild GI discomfort (nausea, loose stools, or bloating) possible at higher intakes
  • · Headache or transient fatigue reported by a small fraction of users
Rare
  • · Allergic or hypersensitivity reaction (rash, itching, swelling)
  • · Sleep disturbance if taken late in the day
Serious
  • · Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing

Drug interactions

Sedatives
Additive.
minor
Thyroid hormone
Possible mild thyroid antagonism (historical).
minor

Safety & non-supplemental interactions

Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.

Avoid if you are
  • ·Pregnant or breastfeeding (insufficient safety data)
  • ·Children under 18 (unless directed by a clinician)
Avoid / monitor with these medications
  • ·Alcohol, benzodiazepines, opioids, sedating antihistamines (additive CNS depression)

Supplement interactions

Pairs well with
  • Magnesium glycinate
    Complementary GABAergic calming and improved sleep architecture.
  • L-theanine
    Reduces sleep latency without sedation.
  • Omega-3 (EPA/DHA)
    Membrane fluidity and neuronal signaling support.
Avoid combining with

No specific avoidances listed.

Dosing & bioavailability

Typical dose
300–600 mg standardized
Best form
Most evidence is based on the standardized extract form.
Timing
Consistent daily timing recommended; split larger doses if GI tolerance is a concern.
With food?
Either with or without food.

Where to buy

Affiliate links — we may earn a commission at no extra cost to you. Amazon code supplementsch-20 is auto-applied at checkout. We don't endorse specific brands; verify third-party testing (USP, NSF, Informed Sport) before purchase.

Scientific evidence8Show studies
RCTMediterranean J Nutr Metab · 2011

Melissa officinalis for anxiety and sleep

Cases J, et al.

15-day open trial of lemon balm extract.

Key findings

Reduced anxiety and insomnia symptoms.

Open study
Systematic reviewPubMed (NLM) · 1970

PubMed: Lemon Balm — Reduces stress and improves calm focus

Live PubMed search

Live results for "Lemon Balm Reduces stress and improves calm focus" across the PubMed/MEDLINE peer-reviewed index.

Key findings

Opens current human and preclinical literature matching Lemon Balm and "Reduces stress and improves calm focus". Filter by RCT, meta-analysis, or year on the results page.

Open study
Systematic reviewPubMed (NLM) · 1970

PubMed: Lemon Balm — randomized controlled trial

Live PubMed search

Live results for "Lemon Balm randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.

Key findings

Opens current human and preclinical literature matching Lemon Balm and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

Open study
Systematic reviewPubMed (NLM) · 1970

PubMed: Lemon Balm — meta-analysis

Live PubMed search

Live results for "Lemon Balm meta-analysis" across the PubMed/MEDLINE peer-reviewed index.

Key findings

Opens current human and preclinical literature matching Lemon Balm and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Open study
Systematic reviewPubMed (NLM) · 1970

PubMed: Lemon Balm — pharmacokinetics

Live PubMed search

Live results for "Lemon Balm pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.

Key findings

Opens current human and preclinical literature matching Lemon Balm and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.

Open study
Systematic reviewPubMed (NLM) · 1970

PubMed: Lemon Balm — safety adverse events

Live PubMed search

Live results for "Lemon Balm safety adverse events" across the PubMed/MEDLINE peer-reviewed index.

Key findings

Opens current human and preclinical literature matching Lemon Balm and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.

Open study
Systematic reviewPubMed (NLM) · 1970

PubMed: Lemon Balm — dose response

Live PubMed search

Live results for "Lemon Balm dose response" across the PubMed/MEDLINE peer-reviewed index.

Key findings

Opens current human and preclinical literature matching Lemon Balm and "dose response". Filter by RCT, meta-analysis, or year on the results page.

Open study
Systematic reviewGoogle Scholar · 1970

Google Scholar: Lemon Balm — clinical evidence

Live Scholar search

Cross-database citation index for Lemon Balm as it relates to "clinical evidence".

Key findings

Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.

Open study
Educational use only. This profile is not medical advice. Consult a qualified healthcare professional before starting any supplement, especially if you take prescription medication or have a chronic condition.

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