Birch Bark, Sweet (Dried)

Betula lenta
Birch bark has a particularly strong detoxifying action on the kidneys and bladder because it acts as an herbal diuretic,  sometimes used as a spring tonic.
One of the most valued benefits of birch bark is its ability to ease aches and pains, especially those associated with something like arthritis or rheumatism because of its  natural anti-inflammatory and pain-relieving properties.
A tea or tincture made from birch bark has natural astringent properties, which makes it toning for skin and helpful for oily complexions and certain types of skin eruptions.
It has traditionally been used for eczema and rashes, but only the "wet" kind, meaning it isn't the best choice for dry skin. (Astringents frequently have a drying effect on skin.) Some herbalists have even recommended the leaves for hair loss throughout the year