Licorice root sounds sweet, old-fashioned, and harmlesslike something your grandmother might keep in a tin next to cough drops and sewing needles. But this famous botanical is more than a candy flavor. Licorice root, from the plant Glycyrrhiza glabra, has been used for centuries in traditional medicine systems, herbal teas, lozenges, digestive remedies, and skin products.
Its natural compounds may support digestion, soothe the throat, calm irritation, and offer anti-inflammatory effects. But licorice root also has a “read the label twice” side. The active compound glycyrrhizin can raise blood pressure, lower potassium, cause fluid retention, and interact with medications. In other words, licorice root is not just tea with a personality. It is a powerful herb that deserves respect.
This guide breaks down the potential benefits, common uses, precautions, side effects, and dosage considerations for licorice root in plain American Englishno herbal fog machine required.
What Is Licorice Root?
Licorice root is the dried root of the licorice plant, a perennial herb native to parts of Europe and Asia. Its signature sweet taste comes mainly from glycyrrhizin, a compound that can be many times sweeter than table sugar. That sweetness explains why licorice has been used in candies, teas, syrups, tobacco flavoring, and herbal formulas.
However, not everything labeled “licorice” contains real licorice root. Many red licorice candies in the United States are fruit-flavored and contain no licorice at all. Some black licorice candies use anise oil for a similar flavor. If you want to know whether a product contains real licorice, look for terms such as licorice root extract, Glycyrrhiza glabra, glycyrrhizin, or glycyrrhizic acid.
Key Compounds in Licorice Root
Licorice root contains several plant compounds that may explain its traditional uses. The most discussed include:
- Glycyrrhizin: The sweet compound linked to both potential benefits and important safety concerns.
- Flavonoids: Antioxidant plant compounds that may help reduce oxidative stress.
- Liquiritin and isoliquiritigenin: Compounds studied for anti-inflammatory and skin-supportive properties.
- Polysaccharides: Natural carbohydrates that may contribute to immune-related effects.
Because licorice root products vary widely, two capsules from different brands may not act the same way. A tea, a candy, a DGL chewable tablet, and a concentrated extract are not interchangeable. That is why dosage and safety depend heavily on the product form.
Potential Benefits of Licorice Root
1. May Support Digestive Comfort
Licorice root is best known for digestive support. Traditionally, it has been used for indigestion, stomach irritation, bloating, and occasional heartburn. Some formulas use deglycyrrhizinated licorice, often called DGL, because the glycyrrhizin has been removed to reduce the risk of blood pressure and potassium problems.
DGL is often marketed for acid reflux and stomach lining support. The idea is that it may help maintain the protective mucus layer in the digestive tract. Still, research is mixed and not strong enough to call licorice root a proven treatment for GERD, ulcers, or chronic digestive disease. It may help some people feel better, but it should not replace medical care for persistent stomach pain, black stools, vomiting, trouble swallowing, or unexplained weight loss.
2. May Soothe a Sore Throat or Cough
Licorice root has a naturally soothing quality, which is why it appears in many herbal throat teas and lozenges. It is considered a demulcent herb, meaning it may coat irritated tissues. For someone with a scratchy throat after a long day of talking, singing, or pretending they “aren’t getting sick,” licorice tea can feel comforting.
Some studies have looked at licorice preparations for throat discomfort, including postoperative sore throat and chronic cough. Results are promising in certain settings, but licorice is not a cure for respiratory infections, asthma, bronchitis, or pneumonia. If a cough lasts more than a few weeks, comes with fever, chest pain, shortness of breath, or blood, it is time to stop Googling tea recipes and call a healthcare professional.
3. May Help Calm Skin Irritation
Licorice root extract is used in some creams, gels, and serums for sensitive skin, redness, dark spots, and eczema-prone irritation. Preliminary evidence suggests topical licorice may help with some inflammatory skin symptoms. Certain compounds in licorice may reduce redness and support a more even-looking complexion.
That said, “natural” does not mean “impossible to irritate your face.” Topical licorice products can still cause stinging, redness, or allergic reactions in some people. Patch test first: apply a small amount to the inner arm or behind the ear and wait 24 hours before using it widely. Your skin appreciates a rehearsal before opening night.
4. May Support Oral Health
Licorice extract has been studied in mouthwash and oral-care products. Early research suggests it may help reduce certain odor-causing bacteria and may have antimicrobial effects. Some licorice compounds have also been studied for gum health and dental plaque.
However, licorice mouthwash is not a substitute for brushing, flossing, dental cleanings, or treating gum disease. Think of it as a possible supporting player, not the lead dentist in the show.
5. May Have Anti-Inflammatory and Antioxidant Effects
Lab and early clinical research suggest licorice root compounds may influence inflammation, oxidative stress, and immune signaling. These effects are part of why licorice has attracted interest for digestive, respiratory, liver, skin, and oral health research.
But here is the important SEO-friendly truth bomb: potential is not the same as proof. Many licorice studies use extracts, doses, or combinations that do not match typical over-the-counter products. More high-quality human research is needed before making bold claims.
Common Uses of Licorice Root
Licorice root is used in several forms, including:
- Tea: Often used for throat comfort, digestion, or relaxation.
- Capsules and tablets: Usually marketed for digestive, adrenal, respiratory, or immune support.
- DGL chewables: Commonly used before meals for digestive comfort.
- Liquid extracts or tinctures: More concentrated and easier to overuse.
- Topical creams or gels: Used for redness, dark spots, or irritated skin.
- Candy and food flavoring: Especially black licorice, though product ingredients vary.
The safest choice depends on why you want to use licorice root. For occasional digestive support, many people choose DGL. For throat comfort, tea or lozenges may be preferred. For skin, topical products are common. For anything involving chronic illness or prescription medication, ask a clinician before using licorice regularly.
Licorice Root Precautions: Who Should Avoid It?
Licorice root is generally safe as a food ingredient for most healthy adults when consumed occasionally. The concern rises with large amounts, concentrated supplements, daily use, or products that contain glycyrrhizin.
Avoid Licorice Root or Ask a Doctor First If You Have:
- High blood pressure
- Heart disease or irregular heartbeat
- Kidney disease
- Low potassium levels
- Liver disease
- Fluid retention or edema
- Hormone-sensitive conditions
- Pregnancy or breastfeeding
Pregnant people should be especially cautious. High intake of licorice or glycyrrhizin during pregnancy has been linked with increased risk of preterm birth and other concerns. Breastfeeding safety is not well established, so it is best to avoid medicinal amounts unless a healthcare provider approves.
Possible Side Effects of Licorice Root
The main safety issue with licorice root is glycyrrhizin. In high amounts or with long-term use, it can cause the body to retain sodium and lose potassium. This can create a condition similar to excess aldosterone activity, sometimes called pseudoaldosteronism.
Possible side effects include:
- High blood pressure
- Low potassium
- Swelling or fluid retention
- Headache
- Fatigue or lethargy
- Muscle weakness or cramps
- Irregular heartbeat
- In severe cases, heart failure or cardiac arrest
The FDA has warned that adults over 40 who eat large amounts of real black licorice daily for two weeks or more may be at risk for irregular heart rhythm. That does not mean one piece of candy is a medical emergency. It does mean that “a bag a day keeps the doctor away” is absolutely not the slogan here.
Licorice Root and Drug Interactions
Licorice root can interact with several medications and supplements. This is one reason it should not be treated like ordinary candy when taken in concentrated form.
Medications That May Interact With Licorice Root
- Blood pressure medications: Licorice may reduce their effectiveness by raising blood pressure.
- Diuretics or “water pills”: These can increase potassium loss, and licorice may make that worse.
- Digoxin and cardiac glycosides: Low potassium can increase the risk of dangerous heart effects.
- Corticosteroids: Licorice may increase steroid-related effects.
- Warfarin: Licorice may affect how this blood thinner works.
- Estrogen-related medications: Licorice may influence hormone activity in some contexts.
If you take prescription medications, have a chronic condition, or use multiple supplements, talk with your doctor or pharmacist before taking licorice root. Pharmacists are especially useful here; they are basically interaction detectives in white coats.
Licorice Root Dosage: How Much Is Safe?
There is no single standard dosage for licorice root because products differ in strength, glycyrrhizin content, extraction method, and intended use. A tea bag is different from a concentrated tincture. A DGL chewable is different from whole licorice root extract. A candy binge is different from a carefully labeled supplement.
General Dosage Guidelines
- Licorice tea: Use occasionally rather than daily unless approved by a healthcare professional. Avoid strong, repeated cups if you have blood pressure, heart, kidney, or potassium concerns.
- DGL supplements: Follow the product label. DGL is designed to remove most glycyrrhizin, but quality varies.
- Standard licorice extract: Use only under professional guidance, especially if it contains glycyrrhizin.
- Topical licorice: Follow label directions and patch test before regular use.
- Black licorice candy: Avoid large daily amounts, particularly if you are over 40 or have heart or blood pressure issues.
Some international safety discussions use 100 mg per day of glycyrrhizin as a general upper limit, but sensitive people may react to less. The smarter approach is to choose products clearly labeled as DGL when appropriate, avoid long-term unsupervised use, and ask a clinician if you plan to take licorice regularly.
DGL vs. Regular Licorice Root
DGL stands for deglycyrrhizinated licorice. It is licorice root processed to remove most glycyrrhizin. Because glycyrrhizin is the compound most associated with high blood pressure and low potassium, DGL is often considered a safer option for people seeking digestive support.
Still, DGL is not magic. It is still a supplement, and supplement quality can vary. Look for brands that provide third-party testing, clear ingredient lists, and specific serving instructions. Avoid products that hide behind vague “proprietary blend” language when you need to know what you are taking.
How to Choose a Licorice Root Product
When shopping for licorice root, read the label like it owes you money. Look for:
- The botanical name, such as Glycyrrhiza glabra
- Whether the product is DGL or contains glycyrrhizin
- The amount per serving
- Suggested use and maximum daily intake
- Third-party testing seals when available
- Warnings for pregnancy, blood pressure, kidney disease, and medication use
Avoid combining multiple licorice products at once. For example, do not drink strong licorice tea, take a licorice capsule, chew DGL tablets, and snack on black licorice candy in the same day. That is not a wellness routine; that is a root-themed ambush.
Real-World Experience: What Using Licorice Root Is Actually Like
In everyday use, licorice root tends to fall into two very different camps: the “this tea saved my scratchy throat” camp and the “I did not realize this could affect blood pressure” camp. Both experiences matter.
Many people first try licorice root as a tea. The flavor is naturally sweet, earthy, and slightly spicy, so it can make an herbal blend taste smoother without added sugar. Someone dealing with a dry throat after public speaking, seasonal irritation, or a mild cough may find that a warm cup feels soothing. The experience is usually gentle: warmth, sweetness, and a coated-throat sensation. For occasional use, this is how many people enjoy licorice safely.
Others discover licorice through DGL chewable tablets for digestion. The routine is simple: chew the tablet before meals, especially when eating something that might trigger discomfort. People who like DGL often say it feels less dramatic than antacidsmore like digestive “padding” than a fire extinguisher. However, results vary. Some notice comfort quickly; others feel nothing except the chalky reminder that supplements are not candy, even when they try very hard to taste like it.
Skincare users may encounter licorice root in serums for redness or uneven tone. The experience here is usually slow and subtle. Nobody wakes up after one application looking like a porcelain statue under studio lighting. But with consistent use, some people report calmer-looking skin. The key is patience, sunscreen, and not layering twelve active ingredients at once like a skincare science fair.
The cautionary experiences are just as important. Some people take licorice capsules daily because they read that it supports “adrenal health” or energy. After a few weeks, they may notice headaches, swelling, higher blood pressure readings, muscle weakness, or unusual fatigue. These symptoms can be easy to blame on stress, age, salt, bad sleep, or that suspiciously large burrito from Tuesday. But licorice can be the hidden cause, especially when it contains glycyrrhizin.
A practical experience-based approach is to treat licorice root as a short-term tool, not a forever supplement. Use the mildest form that fits your goal. Keep track of how often you use it. Check blood pressure if you are prone to hypertension. Stop if you notice swelling, weakness, palpitations, or unusual fatigue. And if you take medications, do not guessask a pharmacist or healthcare provider.
The best experience with licorice root comes from respecting both sides of the plant: the soothing, sweet, traditional side and the biologically powerful side. Enjoyed wisely, licorice root can be a helpful herbal option. Used carelessly, it can turn from “comforting cup of tea” into “why is my potassium auditioning for a disappearing act?”
Conclusion
Licorice root is a fascinating herb with a long history, a naturally sweet flavor, and promising uses for digestive comfort, throat soothing, skin care, and oral health. But it also carries real risks, especially when used in high doses, taken daily, or consumed in products containing glycyrrhizin.
If you are healthy and enjoy occasional licorice tea or a small amount of real black licorice, it is usually not a problem. If you have high blood pressure, heart disease, kidney disease, low potassium, liver concerns, are pregnant, breastfeeding, or take medications, licorice root deserves a serious conversation with your healthcare provider.
The bottom line: licorice root can be useful, but it is not casual. Choose DGL when appropriate, read labels carefully, avoid excessive intake, and remember that the sweetest herbs sometimes come with the sharpest fine print.
Note: This article is for educational purposes only and is not a substitute for medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before using licorice root supplements, especially if you have a medical condition or take medication.
