Lemon balm extract concentrates Melissa officinalis leaf into a consistent dose, usually measured by rosmarinic acid content. Teas and powders vary batch to batch. An extract delivers the same potency each time.
You take it to calm a racing mind or steady a tense mood. A lot of people use it before bed, alone or stacked with other relaxing herbs, to ease into deeper rest.
Capsules and liquid tinctures are the common forms. Standardized labels help you repeat a dose reliably, but your own response will decide what works.
Caution: Lemon balm can amplify sedatives and interfere with thyroid medication. Do not drive if it makes you drowsy. Skip it during pregnancy or breastfeeding unless a professional tells you otherwise.