Xylaria nigripes is a medicinal fungus with a history of use in traditional wellness practices, particularly for relaxation, stress, and restful sleep. It has also traditionally been associated with recovery and general wellbeing, including periods of weakness, physical exhaustion, or recovery after illness.

Traditional uses also extend to cardiovascular and kidney health, with some preparations believed to support circulation and overall bodily function. The fungus has attracted interest for its naturally occurring compounds and potential antioxidant properties, although these traditional uses should not replace prescribed medical treatment or professional advice, particularly for conditions such as high blood pressure or kidney disease.

Xylaria nigripes has also been traditionally connected with cognitive health, wound and skin recovery, inflammation, and postpartum restoration. While these uses continue to generate interest, evidence for many of the claimed benefits remains limited, and more research is needed. For serious conditions, infections, significant burns, or recovery from surgery, appropriate medical care remains essential.