One of the key active components of the black walnut hull is juglone. Juglone exerts its effect by inhibiting certain enzymes needed for metabolic function.
Helping relieve colic
Helping relieve heartburn
Helping relieve flatulence
Stimulating bile flow
Easing pain in spleen
Balancing blood sugar levels
Warding off heart disease
Helping with skin conditions such as boils and acne
Dermatological applications associated with black walnut include viral warts, eczema, acne, psoriasis, xerosis, tinea pedis, and poison ivy.
Black walnuts are an excellent source of alpha-linolenic acid (ALA), with 100 grams of the walnuts containing 3.3 grams of ALA.
The juice from unripe black walnut hulls has been used in folk medicine for many years as a treatment for topical, localized dermatophyte fungal infections, such as ringworm.