Melissa officinalis Leaf Identity & Plant Part
The botanical entity is Melissa officinalis L., a perennial herb of the mint family, Lamiaceae. The part used is the dried leaf, which is oval, toothed and crinkled and carries the lemon scent when it is crushed. Stems, flowers and the steam-distilled oil are not part of this lemon balm extract.
Several other herbs smell of lemon, including lemon verbena, Aloysia citrodora, lemongrass, Cymbopogon citratus, and lemon thyme, so a specification that says only “lemon” does not identify lemon balm. The leaf carries hydroxycinnamic acids such as rosmarinic acid, flavonoids and a citral-type volatile oil, of which water extraction keeps mainly the polar part.












