The marshmallow plant has a long history of use in traditional medicine across many countries. Traditionally, the roots, leaves, and flowers of marshmallow are utilized for their soothing properties. This herb contains a variety of naturally occurring compounds, including pectins, mucilage, flavonoids, and antioxidants, which contribute to its general wellness support. In folk practices, extracts from marshmallow have been used to support general well-being and are noted for their soothing effects on the body's external and internal surfaces. The aqueous extract of marshmallow is also traditionally used in supportive roles for digestive health and overall bodily comfort.
Source(s):
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5524553/