Nootropic profile
Lemon Balm
Lemon Balm (Melissa officinalis) is a gentle calming herb from the mint family with over 2,000 years of traditional use. It reduces anxiety, promotes restful sleep, and may support memory and attention through GABA modulation and mild acetylcholinesterase inhibition.
Best for
Educational only: this is not medical advice. Always check with a qualified healthcare professional before starting any supplement.
What is Lemon Balm?
Lemon Balm (Melissa officinalis) is a perennial herb from the mint family (Lamiaceae) native to southern Europe and the Mediterranean. Its name "Melissa" derives from the Greek word for "honey bee," reflecting the plant's attractiveness to pollinators.
What it does for you
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How to take it
- Standardised extract: 300–600 mg per day, standardised to rosmarinic acid content (typically 2–7%)
- For anxiety/stress: 300 mg of standardised extract, 1–2 times daily
- For sleep: 300–600 mg taken 30–60 minutes before bed; often combined with valerian for enhanced effect
- Tea: 1.5–4.5 g of dried leaves steeped in hot water for 10–15 minutes, 2–3 times daily
- For cognition: 300–600 mg of standardised extract; some studies used a single 600 mg dose for acute cognitive benefits
Watch out for
- Side effects: Very well-tolerated. Rare reports of nausea, abdominal pain, or dizziness at high doses.
- Thyroid: May interfere with thyroid function - use with caution if you have hypothyroidism or are taking thyroid medication, as it may inhibit TSH binding.
- Drug interactions: May enhance the effects of sedatives and GABAergic drugs. May interact with thyroid medications and glaucoma drugs.
- Pregnancy: Generally considered safe in food amounts, but supplemental doses should be discussed with a healthcare provider during pregnancy or breastfeeding.
- Drowsiness: May cause drowsiness, particularly at higher doses or when combined with other calming agents.
The science, if you're curious.
- Rosmarinic acid and other compounds inhibit GABA transaminase, the enzyme that degrades GABA, thereby increasing GABA levels in the brain and promoting calm.
- Lemon Balm mildly inhibits AChE, preserving acetylcholine for improved memory and attention - contributing to its cognitive-enhancing effects.
- Active compounds bind to muscarinic and nicotinic acetylcholine receptors, directly supporting cholinergic signalling and cognitive function.
- Rosmarinic acid provides potent antioxidant and anti-inflammatory activity, protecting neurons from oxidative stress.
Where to find it
- Fresh or dried leaves: Easy to grow in gardens; leaves can be used fresh in cooking or dried for tea
- Lemon Balm tea: One of the most popular herbal teas, widely available in supermarkets and health food shops
- Standardised extracts: Cyracos (standardised to 7% rosmarinic acid and 15% hydroxycinnamic acid derivatives) is a well-studied proprietary extract
- Essential oil: Used in aromatherapy for calming effects; not for internal use
- Supplements: Available as capsules, tinctures, and powder
The research
Valerian root in treating sleep problems and associated disorders - a systematic review and meta-analysis
Shinjyo N, Waddell G, Green J - Journal of Evidence-Based Integrative Medicine
Valerian consistently improved sleep quality across 60 studies, with enhanced effects when combined with hops or lemon balm.
Pilot trial of Melissa officinalis L. leaf extract in the treatment of volunteers suffering from mild-to-moderate anxiety disorders and sleep disturbances
Cases J, Ibarra A, Feuillere N, Roller M, Sukkar SG - Mediterranean Journal of Nutrition and Metabolism
Lemon balm extract (600mg daily) reduced anxiety by 18% and improved sleep quality over 15 days.
Frequently asked
Lemon Balm (Melissa officinalis) is a gentle calming herb from the mint family with over 2,000 years of traditional use. It reduces anxiety, promotes restful sleep, and may support memory and attention through GABA modulation and mild acetylcholinesterase inhibition.
The main benefits people report from Lemon Balm are: Anxiety & Calm, Focus, Memory, Mood, Sleep, Stress Relief.
Standardised extract: 300–600 mg per day, standardised to rosmarinic acid content (typically 2–7%)For anxiety/stress: 300 mg of standardised extract, 1–2 times dailyFor sleep: 300–600 mg taken 30–60 minutes before bed; often combined with valerian for enhanced effectTea: 1.5–4.5 g of dried leaves st...
Side effects: Very well-tolerated. Rare reports of nausea, abdominal pain, or dizziness at high doses.Thyroid: May interfere with thyroid function - use with caution if you have hypothyroidism or are taking thyroid medication, as it may inhibit TSH binding.Drug interactions: May enhance the effects...
Rosmarinic acid and other compounds inhibit GABA transaminase, the enzyme that degrades GABA, thereby increasing GABA levels in the brain and promoting calm.Lemon Balm mildly inhibits AChE, preserving acetylcholine for improved memory and attention - contributing to its cognitive-enhancing effects.A...
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