WiBo Health

Lemon Balm Leaf Extract (Melissa officinalis)

Stress & relaxation

Function & benefits

A lemon-scented herb of the mint family rich in rosmarinic acid; studies suggest it inhibits GABA transaminase, raising calming GABA in the brain, and soothes stress-related digestive cramps.

Dosage & how to use

Recommended dose300–600 mg daily
Best time to takeWith meals, or an hour before bed to support relaxation
FrequencySplit into 1–2 doses

Best forms to choose

Leaf extract standardized for rosmarinic acid (at least 2–5%, such as Cyracos®), or leaf tea.

Important warnings

Take care if you have a severely underactive thyroid

Best to avoid concentrated supplements during pregnancy and breastfeeding

May cause mild drowsiness

Drug interactions

It may interfere with thyroid medication, as studies suggest it can inhibit the binding of thyroid-stimulating hormone (TSH) to its receptors. It strengthens sleeping pills and sedatives.

View in the supplements guide

Related supplements

Scientific references

  1. European Medicines Agency (EMA): Community herbal monograph on Melissa officinalis L., folium
  2. Scholey A et al. Nutrients 2014 — PMID: 25360512
📚 Published sources and research: European Food Safety Authority (EFSA) • National Institutes of Health (NIH - ODS) • PubMed / Cochrane databases

Content last updated: 17 October 2026 · Based on published sources and research (EFSA / NIH / PubMed)

⚖️ Medical disclaimer: The information and data provided here are for health education and nutritional guidance only. They are not a medical diagnosis and never replace a direct consultation with your doctor or pharmacist. Always consult your doctor before starting any supplement, especially during pregnancy or breastfeeding or when taking long-term medication.