Melissa officinalis Raw Material & Plant Part
The botanical name is Melissa officinalis L., family Lamiaceae, sold as lemon balm, balm or sweet balm. The raw material is the dried leaf, harvested before or at early flowering, cut and dried before milling. Stems, flowers and roots are not included.
Several plants carry a lemon name and are unrelated. Lemon verbena, lemongrass and lemon thyme belong to other genera, and lemon-scented leaves alone do not identify lemon balm. A specification that reads lemon balm without the species leaves that confusion open.
The fresh leaf smells of lemon because of volatile oils rich in citral and citronellal. Those oils are light and easily lost in drying and storage, so the dried leaf smells milder than the living plant. Rosmarinic acid is the main phenolic acid of the leaf, together with caffeic and chlorogenic acids. These are listed as a family trait of the plant, not as a level for this powder.
The lemon balm leaf is thin, crinkled and softly hairy, with a toothed edge and the square stem typical of the mint family, and it is bright green when dried quickly at low heat. Slow or hot drying turns it brown and strips the aroma, so the color of the milled powder is a first check on how well the leaf was handled.












