Lemon Balm Uses: Benefits, Calm, Skin & Safety (Melissa officinalis)

Lemon balm (Melissa officinalis) is a lemon-scented member of the mint family, and few garden herbs are put to as many uses. It is brewed as a calming evening tea, taken as a tincture, folded into skincare, and reached for to ease a restless mind or an unsettled stomach. At La Ferme À Ciel Sur Mer we grow and dry it as a single-herb crop, and this guide walks through what lemon balm is used for, where those uses come from, and how to use it safely.

Western herbalists have leaned on lemon balm since at least the Middle Ages, when monastic gardeners called it a "heart herb" that lifted the spirits. Mediterranean and European traditions valued it as a gentle nervine — an herb that soothes and tones the nervous system rather than stimulating it. That quiet, steadying character is still the thread running through almost everything it is used for today.

Because lemon balm covers so much ground, we have built a small family of guides around it. For brewing and the calm-and-sleep side of the herb, see our guide to making lemon balm tea; for tinctures, extracts and other preparations, see how to use lemon balm; and if you would like to grow your own, see how to grow lemon balm from seed. This page is the overview that ties them together.

What Is Lemon Balm?

Lemon balm is a hardy perennial herb native to the eastern Mediterranean and western Asia, now grown in temperate gardens around the world. It reaches one to two feet tall, with bright green, ovate leaves that release a soft lemon fragrance when crushed, and small white to pale-yellow flowers in summer that bees favour.

• Scientific name: Melissa officinalis L.
• Family: Lamiaceae (the mint family)
• Common names: Lemon balm, balm, balm mint, sweet balm
• Part used: The leaves and aerial parts, harvested before flowering for the best aroma

To understand where lemon balm sits among other healing plants and how herbalists describe its action, see our guide to understanding herbal actions.

Active Constituents

Lemon balm's uses trace back to a handful of aromatic and antioxidant compounds concentrated in its leaves. The same essential oils that give the herb its scent carry much of its traditional activity.

• Essential oils: Citral, citronellal and geraniol — responsible for the lemon aroma and much of the herb's calming reputation.
• Phenolic acids: Rosmarinic acid and caffeic acid — antioxidants that account for a good deal of lemon balm's traditional uses.
• Flavonoids: Luteolin and quercetin — plant antioxidants.
• Tannins and triterpenes: Contribute mild astringent qualities.

Traditional and Historical Uses

For centuries lemon balm has been used to settle the mind and the gut. European and Mediterranean herbal traditions reached for it in several recurring ways:

• To calm nervous tension and ease everyday stress
• To encourage restful, unhurried sleep
• To soothe digestive upset such as indigestion and gas
• To lift low mood and support mental clarity

Classed as a gentle nervine, lemon balm was valued less for a single dramatic effect than for its steadying, all-purpose character — an herb to take regularly rather than only in a crisis. It is worth keeping that gentleness in mind: a cup of tea delivers a far milder dose than the concentrated extracts used in clinical research, so the everyday effect is subtle and cumulative rather than sedating.

How Lemon Balm Is Used Today

Most modern uses fall into four areas. This section is the map; each one has a dedicated guide that goes deeper.

For calm and sleep

The most common reason people reach for lemon balm is to take the edge off a busy mind and ease into sleep — usually as an evening tea, often blended with other calming herbs. We cover the calm-and-sleep side, including how to brew it for that purpose, in our lemon balm tea guide.

As a tea

Tea is the simplest and most popular preparation: a light, citrusy infusion that can be enjoyed warm or iced. Brewing method, steeping time and how to dry your own leaves for tea are all covered in the tea guide.

As a tincture, extract or other preparation

Beyond tea, lemon balm is taken as an alcohol-based tincture or liquid extract, and used in culinary and topical preparations. Our guide to how to use lemon balm walks through tinctures, extracts and the various forms, with a simple tincture recipe.

For the skin

Thanks to its aromatic oils and rosmarinic acid, lemon balm is a traditional ingredient in balms, creams and infused preparations applied to the skin. It has also been used traditionally on cold sores, an application we treat separately given the care that subject deserves.

Growing Lemon Balm

Lemon balm is one of the easier herbs to grow: it thrives in full sun to partial shade in well-drained soil, asks only for moderate watering, and spreads readily once established. Leaves are best harvested before the plant flowers, when their essential oil and lemon fragrance are at their peak. For a full walk-through from seed to harvest, see our guide to how to grow lemon balm from seed.

A Note on Safety

Lemon balm is generally well tolerated by adults and children in normal culinary and tea amounts, and side effects are uncommon. Because it has a mild calming action, it may add to the effect of sedatives and other medications that act on the central nervous system, so space it apart from them or speak with your healthcare provider first.

Lemon balm may also influence thyroid function and could interact with thyroid medication, so anyone managing a thyroid condition should check with a professional before taking it regularly. It may also lower blood sugar, an additive effect with diabetes medication, so monitor your levels and speak with your provider if you take them. As a general precaution, avoid concentrated or high-dose preparations during pregnancy and breastfeeding without medical advice.

Regulatory Status

Lemon balm is widely recognized as a safe herbal ingredient and is sold freely as a dried herb and in herbal preparations in Canada, the United States, the European Union and many other countries.

Frequently Asked Questions About Lemon Balm

What is lemon balm used for?

Lemon balm is most often used to ease nervous tension and support restful sleep, to settle mild digestive upset, and as a pleasant lemon-scented tea. It is also used in tinctures and in skincare.

Is lemon balm good for the skin?

Lemon balm has a long traditional use in balms and creams applied to the skin, owing to its aromatic oils and antioxidant rosmarinic acid. It is a common ingredient in topical herbal preparations.

Can you take lemon balm every day?

As a gentle nervine, lemon balm has traditionally been taken regularly, such as a daily cup of tea. If you take medication or have an ongoing health condition, it is sensible to check with your healthcare provider first.

How is lemon balm usually taken?

The most common form is a tea made from the dried leaves. It is also taken as an alcohol-based tincture or liquid extract, and used in culinary dishes and topical preparations.

Does lemon balm interact with any medications?

It may add to the effect of sedatives and central-nervous-system medications, may interact with thyroid medication, and may lower blood sugar alongside diabetes medication. Speak with your doctor if you take any of these.

What does lemon balm taste like?

Lemon balm has a soft, sweet, lemony flavour with a faint minty note, making for a mild and refreshing tea.

For Organic lemon balm grown and dried on our farm in Charlevoix, Quebec, you can find it in our online store. We grow only a little over a dozen herbs so we can give each one our full attention — and lemon balm, with its delicate aromatic oils, is one of the more sensitive among them, so buying direct from the farm helps ensure those qualities are well preserved by the time it reaches you.

Want to learn more? Check out our other guides:

• How to Make Lemon Balm Tea: Recipe, Benefits & Drying Leaves
• How to Use Lemon Balm: Tincture Recipe, Extracts & Forms
• Understanding Herbal Actions: A Guide to Herbal Healing and Plant-Based Support