Lemon Balm: The Gentle, Underrated Soothing Herb

Lemon Balm: The Gentle, Underrated Soothing Herb

Lemon balm is a gentle, universally drinkable, caffeine-free member of the mint family, with bright lemony flavour and modest but real evidence for anxiety and sleep.

Published 9 Feb 2026 Curator-written, not crowdsourced

Lemon balm tea, in summary: Bright, lemony and caffeine-free, lemon balm is the easy drinking mint-family herb with modest support for anxiety and sleep.

Last reviewed by the teas.co.uk team in April 2026.

Lemon balm (Melissa officinalis) is the lesser known cousin of mint, a citrus leaning herbal tea that's easy on the nerves, with real evidence behind its reputation for easing stress and supporting sleep. The cup is mild, lemony, slightly minty. Lemon balm has no caffeine, yet the NHS still limits herbal tea in pregnancy to four cups a day and warns against liquorice root; a midwife or pharmacist can advise if unsure.

The plant

Lemon balm (Melissa officinalis) is a perennial herb native to the Mediterranean and Middle East. The leaves smell distinctly of lemon when crushed; the flavour combines mint family freshness with citrus brightness. The Latin "Melissa" derives from the Greek for "honeybee", the plant is famously attractive to bees.

What lemon balm tastes like

Bright, citrus leaning, slightly minty. Less aggressive than peppermint, less perfumed than lavender. The cup is pale yellow green. Most drinkers find it pleasant on its own; sweetening with honey is optional.

The actual evidence base

Anxiety reduction (modest evidence)

Several controlled trials suggest lemon balm modestly reduces:

Mild generalised anxiety symptoms
Stress related distress
Heart rate during acute stress

Effect sizes are modest at supplement strength; tea strength is gentler. Like chamomile, it is a traditional relaxing herb rather than a sedative.

Sleep quality (modest evidence)

Some studies show lemon balm + valerian combination improves sleep onset and quality. Lemon balm alone has weaker evidence but plausible mechanism.

Digestion (modest evidence)

Mild antispasmodic effect; traditional carminative use. Useful for indigestion and bloating.

Cold sores (topical)

Topical lemon balm (cream form) has some evidence for shortening herpes simplex cold sores. Drinking lemon balm tea doesn't replicate this effect, only topical application does.

Cognition (preliminary)

Some studies suggest lemon balm modestly improves attention and memory in healthy adults. Effect sizes are small; not life changing.

How to brew lemon balm

1-2 tsp dried lemon balm leaves (or 1 tea bag) per 200ml.
Just boiled water (~95°C).
Cover the cup. Steep 5-7 minutes.
Drink black, or with honey/lemon.

Lemon balm blends

Lemon balm + chamomile. Sleep leaning blend.
Lemon balm + valerian. Stronger sleep effect (valerian provides the heavy lifting).
Lemon balm + lavender. Soft floral.
Lemon balm + lemon verbena. Bright citrus pairing.
Lemon balm + spearmint. Refreshing, and quietly settling.

Common products

Pukka Three Mint. Includes lemon balm sometimes. More Pukka here.
Heath & Heather Lemon Balm. UK herbal brand.
Specialist herb suppliers. Pure dried lemon balm for blending.
Many "relax" or "sleep" herbal blends include lemon balm. Check ingredients.

Foraging or growing lemon balm

Lemon balm grows easily in UK gardens, it spreads vigorously, sometimes invasively. Pick fresh leaves; dry on a tray for 5-7 days; store airtight for daily tea use. Foraged lemon balm is dramatically fresher than commercial dried.

Caffeine

0mg.

Cautions

Pregnancy. NHS pregnancy advice caps herbal tea, lemon balm included, at four cups a day, with no liquorice root. Ask your midwife or pharmacist if unsure. Limited specific research.More on pregnancy and tea.
Thyroid medication. Some sources suggest lemon balm may interact with thyroid hormones. Discuss with GP if on thyroid medication.
Sedative medication. Possible additive sedation effect at higher doses.
Children. For children, lemon balm age and dose questions go to a pharmacist, health visitor or GP; we don't give that advice.

Use cases

Mild evening anxiety. Unwinding without sedating.
a quiet moment. Particularly during high stress periods.
Sleep support. Often combined with stronger sleep herbs.
Mild digestive discomfort. Antispasmodic effect.
Cold brewed iced. Excellent, citrus character translates beautifully.
Gardener's cup. If you grow lemon balm in your garden, fresh leaf brewing is excellent.

Cooking with lemon balm

Lemon balm leaves work in:

Salads (similar to mint)
Lemon balm pesto
Lemon balm infused honey or syrup
Lemon balm cocktails
Lemon balm sorbet

FAQ

What is lemon balm? A mint family herb (Melissa officinalis) with citrus leaning flavour and a gentle, unwinding reputation.

Does lemon balm help anxiety? Modestly, some clinical evidence at supplement strength. Tea strength is gentler.

Caffeine? 0mg.

Pregnancy safe? NHS pregnancy advice caps herbal tea, lemon balm included, at four cups a day, with no liquorice root. Ask your midwife or pharmacist if unsure.

Best lemon balm tea? Lemon balm + chamomile or valerian combinations for sleep; pure lemon balm for a less frazzled afternoon.

Curator's note: lemon balm is the evening herb that deserves more attention. Less aggressive than chamomile, more interesting than plain mint, with real if modest evidence behind its claims. Worth knowing about for anyone exploring beyond the supermarket aisle herbal teas. Lee, teas.co.uk, Tunbridge Wells.

The essentials: lemon balm

Aspect	The answer
What it is	Melissa officinalis, citrus-leaning mint cousin
Evidence	Modest anxiety/stress; combined sleep benefit
Caffeine	0mg
Cautions	Thyroid meds, additive sedation, check if relevant
Framing	Gentle nudge that builds with regular use

This is general information, not medical advice. If you take thyroid or sedative medication, or anxiety or sleep problems persist, speak to your GP or pharmacist.

Sensible options on the same shelf: English Breakfast, Earl Grey, green tea, loose leaf tea, Darjeeling, oolong, and herbal tea. The full tea shop is open for lemon balm and every other herbal; UK delivery is free past £35.

From the curatorteas · For an underrated herb like lemon balm, the cost per cup tells the real story. Loose leaf usually beats bags on it, though not always.