Lemon Balm

A garden mint with a long calendar of traditional use — and a modest place in one WellsparQ blend

All articles checked for accuracy against the GB NHC Register and all sources have citations with verified links to their relevant studies.

Lemon balm is a mint-family herb with a gentle lemon scent that has been grown in European gardens for centuries. Its chemistry centres on an essential oil and phenolic acids, and it appears in a modest role in one WellsparQ blend.

This article summarises what lemon balm (Melissa officinalis) is, what key compounds it contains, a snapshot of the clinical research literature, how WellsparQ uses it in a product, and practical suitability notes. It emphasises regulatory context: traditional herbal use is distinct from an authorised health claim.

Ingredient Snapshot

What it is

A perennial herb in the mint family with lemon‑scented leaves.

Where from

Melissa officinalis (mint family, Lamiaceae)

Known for

Contains essential oil (citral, citronellal) and phenolic acids like rosmarinic acid.

In WellsparQ

• EveningCalm Blend50 mg

Lemon balm is one of those plants that has been in kitchen gardens so long it is easy to overlook. Crush a leaf and you get the reason for its name: a soft, lemony scent from the essential oil held in the leaf. Botanically it is Melissa officinalis, a member of the mint family (Lamiaceae), and Melissa comes from the Greek for honey bee — the flowers are a favourite of pollinators ^¹.

A plant with a documented past

Lemon balm has been used in European herbal tradition since at least the Middle Ages, and that long record is part of why it holds a formal place in modern herbal medicine. The European Medicines Agency's Committee on Herbal Medicinal Products (HMPC) has published an assessment and monograph for Melissa officinalis folium (the leaf), recognising it as a traditional herbal medicinal product — a category granted on the basis of long-standing use rather than modern trial data ^². That distinction matters and we keep it in view: "traditional use" is a regulatory acknowledgement of history, not a proof of effect.

What is in the leaf

Reviews of the plant's chemistry describe two broad groups of compounds. The first is the essential oil, rich in citral (geranial and neral) and citronellal, which gives the lemon aroma. The second is a set of phenolic acids, most notably rosmarinic acid, along with flavonoids ^¹. These are the constituents most often discussed when researchers examine the plant.

What the research has looked at

Lemon balm has attracted a reasonable amount of clinical attention for a garden herb, chiefly around mood, stress and sleep. It is worth being precise about what that literature is and is not.

A 2021 systematic review and meta-analysis in Phytotherapy Research pooled controlled trials examining lemon balm in relation to depression and anxiety measures, and reported effects in the studies it gathered while noting the modest size and variable quality of the trials ^³. A 2024 narrative review in Nutrients surveyed the wider body of work on lemon balm and "psychological well-being," again framing the evidence as promising but limited, and calling for larger, better-standardised studies ^⁴. Separately, a 2024 double-blind, placebo-controlled crossover study in Nutrients examined a standardised lemon balm phytosome preparation and self-reported sleep quality ^⁵.

Two honest caveats run through all of this. First, most trials use standardised extracts at several hundred milligrams to a gram or more per day — far above culinary or low-dose amounts. Second, no health claim for lemon balm has been authorised under GB/EU food law, so this evidence is reported here strictly as research findings, not as a promise ^⁶.

How WellsparQ uses it

In the WellsparQ range, lemon balm plays a small, clearly-declared supporting role.

Source: WellsparQ Supplements Database. At 50 mg, lemon balm here is a modest, honest addition rather than a headline act — well below the extract doses used in the clinical literature above. It sits in an evening-themed formula as part of the blend's character, and the label says exactly how much is present.

Suitability and sensible use

Lemon balm is a plant, so the ingredient itself suits vegan, vegetarian, kosher and halal diets (always check the finished product's full formulation and capsule material). The EMA assessment notes that traditional use is generally well tolerated; as a sensible precaution, anyone pregnant or breastfeeding, taking sedative or thyroid medication, or managing a health condition should speak to a GP or pharmacist before using concentrated herbal preparations ^². Lemon balm is a food-familiar herb — a leaf for tea, a sprig in a summer drink — and that everyday character is part of its appeal.