Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Birch (Betula species) has a long history of use in traditional medicine across Europe and Asia for various skin ailments, including psoriasis. Historically, preparations made from birch bark, leaves, or tar have been applied topically to soothe inflamed skin, reduce scaling, and promote healing. The traditional rationale is based on birch’s perceived anti-inflammatory, antimicrobial, and keratolytic properties. Birch tar in particular was a common ingredient in folk remedies for chronic skin disorders, often used similarly to coal tar. However, while these traditional uses are well-documented in ethnobotanical literature, robust scientific validation is lacking. Clinical studies specifically evaluating birch extracts or birch tar for psoriasis treatment are sparse, and most available evidence is anecdotal or derives from small, low-quality studies. Some components of birch, such as betulin and betulinic acid, have demonstrated anti-inflammatory and antioxidant effects in laboratory settings, but their direct impact on psoriasis has not been conclusively established in controlled human trials. In summary, the use of birch in psoriasis is primarily supported by traditional practices, with limited scientific evidence to validate its efficacy. Care should be taken due to possible skin irritation or allergic reactions, particularly with birch tar. Individuals interested in birch preparations for psoriasis should consult healthcare providers before use.

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