Burdock root can be taken as a tea, tincture, capsule, cooked vegetable, or topical preparation. The most common method is brewing dried root into a decoction, with a typical daily amount around 6 grams of dried root split across multiple cups. Which form works best depends on what you’re using it for and how much preparation you want to do.
Burdock Root Tea (Decoction)
Tea is the most popular way to take burdock root and the form used in most clinical research. Because burdock is a hard, woody root rather than a delicate leaf, you need to simmer it rather than just steep it. This process, called a decoction, extracts more of the beneficial compounds locked inside the tough fibers.
To make burdock root tea, add about 1.5 grams (roughly one teaspoon) of dried, chopped burdock root to a cup of water. Bring it to a boil, then reduce the heat and let it simmer for 10 to 15 minutes. Strain out the root pieces and drink. The tea has an earthy, slightly sweet flavor thanks to its natural inulin content, a type of prebiotic fiber.
Studies on burdock tea have used doses of about 6 grams of dried root per day, typically split into three servings of 1.5 grams each. In one trial, people with knee osteoarthritis who drank this amount daily for six weeks showed reduced levels of key inflammatory markers. Another study found that regular burdock tea consumption helped extend the time between flare-ups of diverticulitis. Three cups spread throughout the day is a reasonable starting point.
Tinctures and Capsules
If you don’t want to brew tea every day, tinctures and capsules are convenient alternatives. A burdock root tincture is a liquid extract made by soaking the root in alcohol, which pulls out the active compounds into a concentrated form. Traditional herbalists recommend 2 to 4 milliliters of burdock root tincture per day, which translates to roughly 40 to 80 drops. You can take it straight under the tongue or mix it into a small glass of water or juice.
Capsules containing dried burdock root powder or standardized extracts are widely available at health food stores and online. Dosing varies by brand, so check the label to see how many capsules equal the commonly studied range of around 6 grams of dried root per day. Capsules are the easiest option if the earthy taste of burdock isn’t appealing to you, though they may absorb slightly differently than tea since the root hasn’t been broken down by simmering.
Cooking Fresh Burdock Root
Fresh burdock root, known as “gobo” in Japanese cuisine, is eaten as a vegetable across East Asia. You can find it at Asian grocery stores and some farmers’ markets. It looks like a long, thin, dark brown stick, sometimes two feet long or more.
To prepare it, peel the root and cut it into pieces about an inch long, then slice those lengthwise into thin strips about an eighth of an inch thick. Fresh burdock oxidizes quickly and turns brown when exposed to air, so drop the slices into a bowl of water with a splash of vinegar as you work. This also helps remove some bitterness.
One of the most classic preparations is kinpira gobo, a Japanese simmered dish. Heat oil in a small pot and sauté the burdock slices for 2 to 3 minutes until they’re fragrant and lightly crisped. Then add enough water to cover (about 2 cups), along with soy sauce, rice wine, and a pinch of sugar. Simmer for about 10 minutes or until the root is tender. The finished dish has a satisfying crunch and slightly sweet, earthy flavor. Burdock can also be added to stir-fries, soups, and stews.
When storing fresh burdock root at home, wrap it unwashed in damp paper towels, place it in a plastic bag, and refrigerate. It will keep for 2 to 3 weeks this way.
Topical Use for Skin
Burdock root’s antioxidants and anti-inflammatory compounds make it useful for skin conditions like acne, eczema, and psoriasis when applied topically. The simplest approach is to brew a strong decoction (double the amount of root you’d use for drinking tea), let it cool completely, and use it as a face or skin wash. You can also soak a clean cloth in the cooled tea and apply it as a compress to irritated areas.
Burdock root oil, sometimes called “bur oil,” is another topical option. Commercial versions are available, or you can make your own by infusing dried burdock root in a carrier oil like olive or jojoba for several weeks. This oil is traditionally used on the scalp to support hair health, though the evidence for this is largely anecdotal.
What Makes Burdock Root Beneficial
Burdock root is rich in antioxidants, including quercetin, luteolin, and phenolic acids, all of which help protect cells from oxidative damage. It also contains inulin, a prebiotic fiber that feeds beneficial gut bacteria and contributes to its mildly sweet taste. The root acts as a natural diuretic, meaning it encourages your body to release more water through urine, which is part of its traditional reputation as a “detox” herb. Its flavonoids and other plant compounds give it both anti-inflammatory and mild antibacterial properties.
Safety and Interactions
Burdock root is generally well tolerated, but there are a few important cautions. Because it acts as a diuretic, it can amplify the effects of prescription water pills and increase the risk of dehydration. If you’re already dehydrated, skip burdock until you’ve rehydrated fully.
Burdock may also slow blood clotting. If you take blood-thinning medications, combining them with burdock root could raise your risk of bruising and bleeding.
People with allergies to plants in the Asteraceae family (which includes daisies, ragweed, chrysanthemums, and marigolds) should be cautious, as cross-reactivity is possible. There is at least one documented case of anaphylaxis triggered by burdock in a person with this type of allergy.
Pregnant and breastfeeding women should avoid burdock root. The root contains compounds with uterine-stimulating activity, which could potentially affect a pregnancy. It has also been traditionally used to influence hormone levels, adding another reason for caution during pregnancy and nursing.