Rootwork

Lemon Balm

Melissa officinalis

LamiaceaeSouthern Europe, Mediterranean region, Western Asia

Description

overall appearance

Perennial herb growing 2-3 feet tall with square stems characteristic of mint family and intense lemon fragrance.

roots

Creeping rhizome system with fibrous roots; spreads readily through underground runners.

stem

Square, hollow stems typical of mint family; green color with possible reddish tinge; branching extensively.

leaves

Opposite, heart-shaped leaves 2-3 inches long; serrated margins; bright green color; strongly lemon-scented when crushed.

flowers

Small, white to pale yellow tubular flowers in whorls along stem; appear in summer; highly attractive to bees.

fruits/seeds

Small, dark brown nutlets containing four seeds; produced after flowering but plant spreads primarily by rhizomes.

Botanical illustration of Lemon Balm (Melissa officinalis)

Active Compounds

Rosmarinic acid (antioxidant, antiviral, anti-inflammatory)Caffeic acid (antioxidant, neuroprotective)Citronellal (sedative, antimicrobial)Geraniol (antimicrobial, calming)Linalool (anxiolytic, sleep-promoting)Triterpenes (ursolic acid; anti-inflammatory)

Traditional Uses

  • Anxiety, stress, and nervous tension
  • Insomnia and sleep disorders
  • Digestive disorders and stomach upset
  • Headaches and migraines
  • Cold sores and viral infections
  • Heart palpitations and nervous heart

Modern Applications

  • Anxiety and stress management
  • Sleep quality improvement
  • Cognitive function and memory support
  • Antiviral properties (herpes simplex)
  • ADHD and hyperactivity in children
  • Thyroid support and regulation

⚠️ Safety Information

Contraindications

  • Hypothyroidism (may interfere with thyroid hormone)
  • Scheduled surgery within 2 weeks
  • Glaucoma (may increase intraocular pressure)

Side Effects

  • Generally very well-tolerated
  • Possible mild drowsiness with large doses
  • Rare skin sensitivity with topical use
  • Digestive upset in very sensitive individuals

Drug Interactions

  • Thyroid medications (may interfere with function)
  • Sedative medications (may enhance effects)
  • Glaucoma medications
  • Barbiturates and benzodiazepines

Parts Used

  • Leaves (fresh or dried - primary medicinal use)
  • Flowering tops
  • Essential oil from leaves
  • Whole aerial parts

Preparation Methods

2-3 teaspoons fresh leaves or 1-2 teaspoons dried per cup; steep 10-15 minutes

Not typically used due to volatile oil content

1:5 ratio with 45% alcohol; macerate fresh leaves 2-3 weeks

Fresh crushed leaves for cold sores and minor wounds

Fresh leaves in carrier oil for topical calming applications

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Disclaimer: For educational purposes only. This is not medical advice. Always consult a qualified healthcare provider.