Black Walnut Hull Herb Profile

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Black Walnut Herb- Good for digestion - parasite removal- hair dye
Wellness Mama » Blog » Natural Remedies » Black Walnut Hull Herb Profile

Black Walnut Hull or Juglans Nigra is, just as it sounds, the hull of the black walnut tree. The Black Walnut tree grows in the eastern US and parts of Canada, and while easy to grow, it is not plentiful.

What is Black Walnut?

Black Walnut has been used in herbal medicine for thousands of years. It has been used throughout history for treatment of intestinal problems, snakebites, open wounds, ulcers, scurvy, and as one of the most effective laxatives available. Because of its dark color, the outer hull is also used as a dye and was used in brown hair dye until the early 1900s. It is a good source of beta-carotene, acids, calcium, iron, magnesium, manganese, phosphorus, potassium, selenium, silicon, zinc, tannin, B-vitamins, and vitamin C.

Today, the hulls are used to help with many conditions. It is known to be a gentle and effective laxative. Black walnut is known as an effective anti-viral and is used to fix warts, which are caused by viruses. Black walnut is an anti-fungus and has been used to fight herpes, cold sores, athlete’s foot, and Candida. It has been used as an antiseptic to combat illness like sexually transmitted infections and malaria and can be used to treat acne.

How it is Used

According to Scientific Labs:

  • “Black Walnut Hull may help to lower blood pressure and serum cholesterol levels and is believed to burn up toxins and fatty materials while balancing blood sugar levels.
  • The tannins in Black Walnut Hull (and leaves) possess an astringent quality that is thought to shrink the sweat glands and reduce excessive sweating. The herb is said to help control menorrhagia, the excessive loss of blood during periods. It is also used to control diarrhea.
  • Black Walnut Hull is considered a tonic that aids digestion and the intestinal system. It helps to relieve colic, heartburn and flatulence. As a cholagogue, it stimulates the flow of bile into the intestines and is thought to ease bilious colic and pain in the spleen.”

Perhaps Black Walnut’s most well-known property is its ability to fight intestinal parasites. It is a well documented vermifuge that is effective at helping the body rid itself of parasites. As a laxative, it expels parasites as part of its cleansing of the body and the high tannin and juglone content is thought to oxygenate the blood and kill parasites. Black walnut is effective against pinworm, ringworm, tapeworm, and other intestinal parasites.

From Mountain Rose Herbs:

Black walnut hulls contain juglone, a chemical that is antibacterial, antiviral, antiparasitic, and a fungicide. As a skin wash, black walnut hulls are used to treat ringworm and yeast infections of the skin. Taken internally, black walnut hulls are used to treat intestinal worms.

Where to Buy Black Walnut Hull

If you own property where the tree is growing, you could harvest it yourself (always check with an herbalist to make sure it’s the correct tree and can be consumed), but If you’re like me and don’t have any of them in your yard, you can purchase it here.

Black walnut hulls are safe for occasional use of up to 2 weeks at a time, but black walnut heartwood is not. Avoid herbal remedies which contain heartwood.

Black walnut is an extremely potent remedy that should be used under the care of a holistic health professional. Should not be used during pregnancy or illness. Consult your doctor if you have any condition that is severe or lasts longer than a few days.

Ever used black walnut hull? Want to try it out? Share below!

Katie Wells Avatar

About Katie Wells

Katie Wells, CTNC, MCHC, Founder of Wellness Mama and Co-founder of Wellnesse, has a background in research, journalism, and nutrition. As a mom of six, she turned to research and took health into her own hands to find answers to her health problems. is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.


182 responses to “Black Walnut Hull Herb Profile”

  1. Jenn Avatar

    I have Black Walnut Hulls Powder. How do I make the tincture to use on Plantar warts?

  2. betty Avatar

    If I have nut allergies can I ingest black walnut extract? Is it safe with people who have nut allergies?

  3. Tuffy Avatar

    Ok I read the Comment policy and the part about the medical advice. But I am curious about Black Walnut Juglone that comes out of the hull. I was weed whacking 2 days ago and that morning I noticed a red Squirrel knocking down walnuts out of the Black walnut tree in my yard. I did’nt think much about it. So I carried on weed whacking and when I reached the tree I hit a Couple walnuts with weed whacker and I felt the juices hit my arms and face a little but this is not out of the ordinary for me since I weed whack very large areas every year all summer long and am used to it. Within 20 Mins I started feeling my face and arms burning. So I stopped to go wash off thinking maybe I got into poison Ivy even Know poison Ivy has never Bothered me in the past. I washed off all the grass and Debris from my arms when I noticed I had these brown blotches all over my arms and some spots on my face. I continued to wash trying to remove the marks and nothing was happening. I consulted the ER which was no help at all cause they can not give out any info over the phone. I call my family doctor who said take benedryl. I took the Benedryl and continued to do research and can not really find any info regarding this matter. Found some things about tea tree oil which I am trying now. But would like to really Know a little more about the juglone and if anyone else has expierenced these effects. And if there is something else that worked for them to get the blotches to go away other then just time?

    1. Elizabeth Avatar

      It just sounds like dye. The juice from the hull will make your skin brown/black. It eventually goes away.

  4. Latha rao Avatar

    I have tooth caries and wearing of enamel how can I use this tincture I am fed up root canal and other dental procedures

  5. Katy Avatar

    I know this post is a little older, but does anyone think this would be god in a lip balm recipe? Also, read on WebMD that it can be good for pain reduction? Found a crapload of them growing near my house, and I love the smell.

  6. Royce Avatar

    Okay after reading all the comments I went out behind the house and picked some black walnuts. I wonder how much I can eat if I just shave a piece off with a knife? I just drove around a few minutes and found five trees here in Oklahoma.

  7. GabriellaM Avatar

    I’m taking Genestra Brands Black Walnut Combination#1 10 days now for cleansing. The last couple of days I’m having headaches. Not sure it could be caused by the herb????? Also I’m sleeping much more than normally…..
    I read some notes about taking it for candida, it is helping?

  8. Danielle Avatar

    Has anyone tried this internally for hemorrhoids? Since it helps with inflammation in the intestines would it help with swelling in the anus and rectum area too?

  9. Kayla Avatar

    I have been reading up on the black walnut Hull and wondering if it would help me. I have had something like pancreatitis and not been able to eat. I had a CT scan and an MRI that showed everything was clear but I still have trouble having nausea when I eat. I am searching for something because the medical field can’t find out what is wrong. Do you think the black walnut Hull would be for me?

    1. Alma Avatar

      I suggest you try Aloe Vera juice; it works with cats with your symptoms. George’s is a very good brand. Aloe Vera has been known to help with a number of gastro-intestinal symptoms. Because I volunteer with animal rescue, specifically cats, I am most familiar with pet remedies. But what works well for animals, often works for humans too, and vice versa.

  10. Mia Avatar

    My 16 year old son has a severe case of psoriasis, and we are trying not to use any medicine for it, since he tried and it works only for a short period of time and then it gets worse. We are trying to treat him only naturally. Someone told us that black walnut extract will help him with his psoriasis but I know very little of it. Anyone have experience with this?

  11. Jena Avatar

    I am trying to get rid of pin worms, and I was going to give black walnut to my little 3 year old; but i was reading that children shouldn’t take it? Is this correct ?

  12. Erin Avatar

    I started to read through and I came across the section stating that black walnut is effective for killing intestinal parasites including ringworm. As ringworm (dermatophytosis) is not an intestinal parasite does black walnut still work on this type of infection?

  13. Bob Avatar

    Im taking Keflex for a foot skin infection that moved to my lower calf. When it moved to the calf is when I started the keflex. Now its almost healed but I have parasites in my skin tha I believe caused the infection. I take 1 tablespoon of DE with V8 in the morning an 4 billion units of acidophilus (the DE kills good bacteria) Can I take Black Walnut capsules for the parasites along with Keflex if I wait 2 hours for the Keflex to be absorbed?The recommended dosage on bottle is 2 -500 mg caps ,twice daily with meals?

  14. Aleta Avatar

    Is it safe to give my kids (ages 6 and 2) black walnut powder, once or twice a month, as a precaution for parasites? I’ve read you don’t want to use it everyday because it will kill the good bacteria too but they are both on probionics and so I was wondering if it is safe enough to use on a somewhat regular bases.

  15. Aleta Avatar

    I have young school aged kids and am afraid that they are going to bring parasites home. I was wondering if black walnut is safe for children. Would giving them black walnut powder on their cereal once or twice a month be safe and productive?

  16. Tempe Avatar

    I have read that when using black walnut herb,it should not have heartwood in it .I am planning to take this herb.How do I know if it has heartwood in it?Would it be listed on the bottle? And what is heartwood? Is it part of the tree?

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