pylsemä

Pylsemä is a traditional Finnish folk remedy derived from the bark of the birch tree (*Betula pendula* or *Betula pubescens*). The term "pylsemä" originates from the Finnish word *pylsä*, meaning "to stick" or "to adhere," referring to the bark’s tendency to cling to the tree. Historically, birch bark has been used for various medicinal and practical purposes across Northern Europe, particularly in Finland, Sweden, and Russia.

The bark is harvested in early spring, when it is most active and contains higher concentrations of beneficial compounds. Traditionally, it was used to treat skin conditions such as eczema, psoriasis, and minor wounds due to its anti-inflammatory and antimicrobial properties. Birch bark tea was also consumed to support kidney function, aid digestion, and reduce fever. In some cases, it was applied externally as a poultice for muscle pain or joint discomfort.

Chemically, birch bark contains flavonoids, phenolic acids, and essential oils, which contribute to its therapeutic effects. Modern research has explored its potential antioxidant and antimicrobial properties, though clinical studies remain limited compared to its long-standing folk use.

Today, pylsemä is still available in some Finnish herbal shops and apothecaries, often sold as dried bark, tea, or topical preparations. While not widely recognized in mainstream medicine, it remains a part of Finland’s cultural and natural heritage, valued for its simplicity and historical significance. As with any herbal remedy, caution is advised, particularly regarding potential allergic reactions or interactions with medications.