Black walnut hull, the thick green outer layer that surrounds the nut of the Juglans nigra tree, has been valued for centuries for its remarkable properties. When fresh, the hull is vibrant green; as it oxidizes, it turns a deep brown or black—signaling that powerful compounds inside are becoming active. This part of the fruit has long been used in traditional herbal practices for cleansing, digestive support, skin care, and more. Today, it remains one of the most versatile natural ingredients you can use at home.

What Makes Black Walnut Hull So Powerful?
Black walnut hull contains a concentrated mix of juglone, tannins, iodine-like compounds, antioxidants, and natural acids. These give it a wide range of benefits, especially for the digestive system, the skin, and general cleansing.
Below are the key powers of black walnut hull:
1. Powerful Natural Cleanser
The hull is known for its strong cleansing properties. It helps the body eliminate unwanted microorganisms and contributes to maintaining a healthy internal balance.
2. Supports Digestive Health
Black walnut hull promotes better digestion by helping the body process food more efficiently. It is also valued for supporting a balanced intestinal environment.
3. Rich in Antioxidants
The hull contains compounds that help protect cells from oxidative stress. This supports overall wellness and helps slow down the impact of free radicals.
4. Natural Skin Purifier
When applied topically, black walnut hull can help cleanse the skin, tighten pores, and reduce the appearance of blemishes. Its tannins act as a natural astringent.
5. Promotes Oral Health
Black walnut hull has been traditionally used to support gum health, freshen breath, and maintain a clean oral environment.
6. Supports Healthy Blood Sugar Levels
Some traditional herbal practices use black walnut hull to help maintain balanced blood sugar levels when consumed in moderation.
7. Iodine-Like Properties
The hull has an iodine-like effect, which can support overall wellness, particularly for people who need additional trace minerals.
8. Strengthens Hair and Scalp
Rinses made from the hull are known to deepen hair color, strengthen strands, and support a cleaner, healthier scalp.
9. Helps Reduce Inflammation
Applied externally, black walnut hull preparations may soothe minor skin irritations, insect bites, and localized inflammation.
10. Supports Liver and Gallbladder Health
Through its cleansing effects, black walnut hull may indirectly support liver function and help the body eliminate accumulated toxins.
Homemade Uses of Black Walnut Hull
Below are the most common, practical, and effective ways to use black walnut hull at home. These are simple methods that can be done with either fresh or dried hulls.