Glycyrrhizin: Benefits, Dosage & Research

Q: What is the recommended dosage of glycyrrhizin?

Clinical studies typically use 50-100mg daily of glycyrrhizin extract. Doses above 100mg daily increase risk of side effects including elevated blood pressure and potassium depletion. Short-term use of 2-4 weeks is generally recommended.

Q: Can glycyrrhizin raise blood pressure?

Yes, glycyrrhizin can significantly raise blood pressure by inhibiting cortisol breakdown and mimicking aldosterone effects. This pseudoaldosteronism causes sodium retention and potassium loss, particularly dangerous for individuals with existing hypertension.

Q: Is glycyrrhizin safe during pregnancy?

Glycyrrhizin is not recommended during pregnancy as it may affect fetal development and maternal blood pressure regulation. The compound's hormonal effects on cortisol metabolism pose potential risks to both mother and developing fetus.

Q: Does glycyrrhizin interact with heart medications?

Glycyrrhizin can interact dangerously with digoxin and other cardiac glycosides by depleting potassium levels, increasing toxicity risk. It may also interfere with blood pressure medications and diuretics, requiring medical supervision if used concurrently.

Q: How long does it take for glycyrrhizin to work?

Anti-inflammatory effects from glycyrrhizin may be noticed within 1-2 weeks of consistent use at therapeutic doses. However, the compound's cortisol-modulating effects can persist for several weeks after discontinuation due to enzyme inhibition duration.

Q: What are the natural food sources of glycyrrhizin?

Glycyrrhizin is the primary active compound found in licorice root (Glycyrrhiza glabra), which has been used in traditional medicine for thousands of years. While licorice root contains glycyrrhizin naturally, the concentration varies significantly depending on the plant part, growing conditions, and extraction method. Whole licorice root used in teas or traditional preparations will contain glycyrrhizin, but most supplemental forms use standardized extracts to ensure consistent dosing. Consuming licorice from food sources alone typically provides lower amounts than therapeutic supplemental doses.

Q: What is the evidence quality for glycyrrhizin's anti-inflammatory effects?

While research indicates glycyrrhizin may have anti-inflammatory properties comparable to corticosteroids, most supporting evidence comes from laboratory and preclinical studies rather than large-scale human clinical trials. The proposed mechanisms—such as TNF-induced insulin resistance modulation and angiogenesis support through VEGF production—have been demonstrated in controlled experimental settings but lack robust clinical validation in humans. Current evidence is sufficient to justify continued research interest, but consumers should understand that clinical efficacy in real-world conditions remains to be fully established. More rigorous human trials are needed to confirm the magnitude and reliability of glycyrrhizin's anti-inflammatory benefits.

Q: Who should consider glycyrrhizin supplementation, and who should avoid it?

Individuals experiencing inflammatory conditions, digestive complaints traditionally associated with licorice use, or those interested in evidence-based herbal support may be candidates for glycyrrhizin supplementation, though they should consult a healthcare provider first. People with hypertension, kidney disease, hypokalemia (low potassium), or those taking medications that affect electrolyte balance should generally avoid or carefully monitor glycyrrhizin use due to potential mineralocorticoid effects. Pregnant women, nursing mothers, and those with a personal or family history of hormone-sensitive conditions should avoid glycyrrhizin without medical supervision. Athletes and individuals subject to drug testing should be aware that large licorice intakes may theoretically affect electrolyte levels and should verify supplement safety with relevant organizations.

Hermetica Superfood Encyclopedia

By Hermetica Editorial Team

Published March 19, 2026Last reviewed March 19, 2026Methodology · Editorial policy · Report an error

The Short Answer

Glycyrrhizin is a triterpene saponin extracted from licorice root that exhibits anti-inflammatory activity by inhibiting 11β-hydroxysteroid dehydrogenase and modulating cortisol metabolism. It demonstrates corticosteroid-like effects through interference with inflammatory cytokine pathways including TNF-α and interleukin signaling.

—

PubMed Studies

Validated Benefits

—

Synergy Pairings

At a Glance

CategoryNamed Bioactive Compounds

GroupCompound

Evidence LevelModerate

Primary Keywordglycyrrhizin benefits

Synergy Pairings3

Glycyrrhizin close-up macro showing natural texture and detail — rich in anti-inflammatory, antiviral, immunomodulatory

Glycyrrhizin (Saponin) — botanical close-up

Health Benefits

Origin & History

Natural habitat

Glycyrrhizin is the primary sweet-tasting triterpene saponin extracted from the roots of Glycyrrhiza glabra (licorice plant), comprising 2-25% of the root content. This water-soluble compound consists of glycyrrhetinic acid linked to two glucuronic acid molecules and is isolated through hot water extraction from harvested taproots.

“Glycyrrhiza glabra (known as mulaithi in North India) has been used for centuries in Ayurvedic and traditional Chinese medicine systems as an expectorant, demulcent, antiulcer, anticancer, anti-inflammatory, and antidiabetic agent. The roots have been the traditional source material, with glycyrrhizin contributing to both the characteristic sweet taste and bioactivity.”Traditional Medicine

Scientific Research

The research dossier notably lacks details on human clinical trials, RCTs, or meta-analyses with specific PMIDs, sample sizes, or clinical outcomes for glycyrrhizin. While pharmacological activities are mentioned, including anti-inflammatory effects and various molecular interactions (PubMed: 7596430, 12032167, 7592706, 24726386, 11342582, 27811232), these appear to be mechanistic rather than clinical studies.

Preparation & Dosage

Glycyrrhizin ground into fine powder — pairs with Ginger, turmeric, boswellia

Traditional preparation

No clinically studied dosage ranges for extracts, powders, or standardized forms are detailed in the available research. Consult a healthcare provider before starting any new supplement.

Nutritional Profile

Glycyrrhizin is a triterpenoid saponin (oleanane-type) and the primary bioactive compound of licorice root (Glycyrrhiza glabra/uralensis), not a whole food ingredient, so traditional macronutrient/micronutrient framing does not apply. Key compositional data: Glycyrrhizin (glycyrrhizic acid) constitutes approximately 2–25% dry weight of licorice root, with commercial extracts standardized to 20–25% glycyrrhizin content. Molecular weight: 822.94 g/mol (ammonium glycyrrhizinate form). Structurally, it is a glycoside consisting of one molecule of 18β-glycyrrhetinic acid (the aglycone) linked to two glucuronic acid residues, which govern its amphiphilic and surfactant (saponin) properties. Bioavailability: Orally ingested glycyrrhizin is poorly absorbed intact in the small intestine; gut microbiota (Eubacterium sp., Ruminococcus sp.) hydrolyze it to 18β-glycyrrhetinic acid, the primary systemically active metabolite, with peak plasma levels reached at approximately 8–24 hours post-ingestion. Bioavailability of intact glycyrrhizin is estimated at <1% orally; 18β-glycyrrhetinic acid bioavailability is substantially higher (~40% relative). Intravenous formulations (e.g., Stronger Neo-Minophagen C used clinically in Japan) bypass gut metabolism entirely. Typical research doses: 75–760 mg/day glycyrrhizin equivalent in clinical contexts. Co-occurring compounds in licorice-sourced preparations include liquiritin (~0.5–5% dry weight), isoliquiritigenin, glabridin, and licochalcone A, which may contribute synergistic bioactivity but are distinct from glycyrrhizin itself. No significant macronutrient, vitamin, or mineral contribution is attributable to isolated glycyrrhizin at pharmacological doses.

How It Works

Mechanism of Action

Glycyrrhizin inhibits 11β-hydroxysteroid dehydrogenase type 2, preventing cortisol breakdown and enhancing local anti-inflammatory effects. It modulates TNF-α-induced insulin resistance by affecting GKAP42 protein degradation pathways. The compound also influences angiogenesis through VEGF production mediated by IL-1β and IL-6 cytokine interactions.

Clinical Evidence

Current evidence for glycyrrhizin consists primarily of preclinical studies and mechanistic research. Anti-inflammatory effects have been demonstrated in laboratory models but lack robust human clinical trials with defined endpoints. The TNF-α insulin resistance modulation and angiogenesis support remain at the preclinical evidence stage. More controlled human studies are needed to establish therapeutic efficacy and optimal dosing protocols.

Safety & Interactions

Glycyrrhizin can cause pseudoaldosteronism, leading to hypertension, hypokalemia, and fluid retention at doses above 100mg daily. It may interact with digoxin, warfarin, and blood pressure medications due to potassium depletion effects. Individuals with cardiovascular disease, kidney disorders, or pregnancy should avoid supplementation. Long-term use may suppress the hypothalamic-pituitary-adrenal axis.

Synergy Stack

Hermetica Formulation Heuristic

Also Known As

Glycyrrhizic acid18β-Glycyrrhetinic acid 3-O-diglucuronideGlycyrrhizinic acidLiquiritin saponinMulaithi saponinGan Cao glycosideLicorice root saponin

Frequently Asked Questions

What is the recommended dosage of glycyrrhizin?

Clinical studies typically use 50-100mg daily of glycyrrhizin extract. Doses above 100mg daily increase risk of side effects including elevated blood pressure and potassium depletion. Short-term use of 2-4 weeks is generally recommended.

Can glycyrrhizin raise blood pressure?

Yes, glycyrrhizin can significantly raise blood pressure by inhibiting cortisol breakdown and mimicking aldosterone effects. This pseudoaldosteronism causes sodium retention and potassium loss, particularly dangerous for individuals with existing hypertension.

Is glycyrrhizin safe during pregnancy?

Glycyrrhizin is not recommended during pregnancy as it may affect fetal development and maternal blood pressure regulation. The compound's hormonal effects on cortisol metabolism pose potential risks to both mother and developing fetus.

Does glycyrrhizin interact with heart medications?

Glycyrrhizin can interact dangerously with digoxin and other cardiac glycosides by depleting potassium levels, increasing toxicity risk. It may also interfere with blood pressure medications and diuretics, requiring medical supervision if used concurrently.

How long does it take for glycyrrhizin to work?

Anti-inflammatory effects from glycyrrhizin may be noticed within 1-2 weeks of consistent use at therapeutic doses. However, the compound's cortisol-modulating effects can persist for several weeks after discontinuation due to enzyme inhibition duration.

What are the natural food sources of glycyrrhizin?

Glycyrrhizin is the primary active compound found in licorice root (Glycyrrhiza glabra), which has been used in traditional medicine for thousands of years. While licorice root contains glycyrrhizin naturally, the concentration varies significantly depending on the plant part, growing conditions, and extraction method. Whole licorice root used in teas or traditional preparations will contain glycyrrhizin, but most supplemental forms use standardized extracts to ensure consistent dosing. Consuming licorice from food sources alone typically provides lower amounts than therapeutic supplemental doses.

What is the evidence quality for glycyrrhizin's anti-inflammatory effects?

While research indicates glycyrrhizin may have anti-inflammatory properties comparable to corticosteroids, most supporting evidence comes from laboratory and preclinical studies rather than large-scale human clinical trials. The proposed mechanisms—such as TNF-induced insulin resistance modulation and angiogenesis support through VEGF production—have been demonstrated in controlled experimental settings but lack robust clinical validation in humans. Current evidence is sufficient to justify continued research interest, but consumers should understand that clinical efficacy in real-world conditions remains to be fully established. More rigorous human trials are needed to confirm the magnitude and reliability of glycyrrhizin's anti-inflammatory benefits.

Who should consider glycyrrhizin supplementation, and who should avoid it?

Individuals experiencing inflammatory conditions, digestive complaints traditionally associated with licorice use, or those interested in evidence-based herbal support may be candidates for glycyrrhizin supplementation, though they should consult a healthcare provider first. People with hypertension, kidney disease, hypokalemia (low potassium), or those taking medications that affect electrolyte balance should generally avoid or carefully monitor glycyrrhizin use due to potential mineralocorticoid effects. Pregnant women, nursing mothers, and those with a personal or family history of hormone-sensitive conditions should avoid glycyrrhizin without medical supervision. Athletes and individuals subject to drug testing should be aware that large licorice intakes may theoretically affect electrolyte levels and should verify supplement safety with relevant organizations.

Browse All Ingredients More Compound Immune Support Stress & Cortisol About the Encyclopedia

These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

Glycyrrhizin (Saponin)