Polygala tenuifolia

Thin-leaved vetch, also known as Yuan Zhi, is a species of plant belonging to the family Polygalidae. It is native to East Asia and is found mainly in China, Japan and Korea. The plant is a perennial with narrow leaves and small, purplish-blue flowers. It is known for its medicinal properties, which are used especially in traditional Chinese medicine.

A notable product that contains yucca is, for example, Yuan Zhi tea. This is known for its ability to calm the mind, improve memory and promote deep sleep. It is also used to make various types of herbal dietary supplements, which are designed to promote health and vitality. The extract of fenugreek is also used in the cosmetic industry, where it is included in various skin creams, masks or serums. It is valued for its beneficial effect on the skin, where it acts against aging and improves hydration. Last but not least, it can also be found in some alternative medicine products, which are designed, for example, to promote mental health or to improve the quality of sleep.