# Baical Skullcap (Scutellaria baicalensis)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/baical-skullcap
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-31
**Evidence Score:** 2 / 10
**Category:** Traditional Chinese Medicine
**Also Known As:** Scutellaria baicalensis Georgi, Chinese Skullcap, Huang Qin, Golden Root, Baikal Skullcap, Radix Scutellariae, Ogon, Hwanggeun

## Overview

Baical Skullcap (Scutellaria baicalensis) is a root herb in Traditional Chinese Medicine whose primary bioactive flavonoids — baicalin, baicalein, and wogonin — drive its anti-inflammatory and immune-modulating effects. These compounds inhibit NF-κB signaling, suppress [pro-inflammatory cytokine](/ingredients/condition/inflammation)s, and modulate Th1/Th2 immune balance, underpinning its [hepatoprotective](/ingredients/condition/detox) and anti-allergic properties.

## Health Benefits

• [Immune modulation](/ingredients/condition/immune-support): Compounds inhibit IL-4 production dose-dependently and decrease interferon gamma, suppressing Th2-dominant allergic responses (animal studies)
• [Anti-inflammatory](/ingredients/condition/inflammation) effects: Reduces liver enzymes AST and ALT, demonstrating [hepatoprotective](/ingredients/condition/detox) properties (preclinical evidence)
• Anti-cancer potential: Wogonin causes G1 cell cycle arrest while baicalin/baicalein cause G2/M accumulation in tumor cells (in vitro studies)
• Allergy management: Extract at 25mg/kg reduced ovalbumin-induced immune responses in animal models
• Liver protection: Baicalin increases TNF-α and IL-6, suggesting potential in liver regeneration after injury (animal studies)

## Mechanism of Action

Baicalin and baicalein inhibit NF-κB nuclear translocation, reducing downstream transcription of [pro-inflammatory cytokine](/ingredients/condition/inflammation)s including IL-1β, IL-6, and TNF-α. Wogonin selectively suppresses IL-4 production in Th2 cells dose-dependently while decreasing interferon-gamma, shifting immune responses away from Th2-dominant allergic phenotypes. Additionally, baicalein inhibits 5-lipoxygenase (5-LOX) and cyclooxygenase-2 (COX-2) enzyme activity, blocking arachidonic acid conversion to pro-inflammatory leukotrienes and prostaglandins.

## Clinical Summary

Most available evidence for Baical Skullcap derives from in vitro cell studies and rodent models rather than robust human clinical trials, limiting direct extrapolation to clinical practice. Preclinical studies demonstrate significant reductions in liver enzymes AST and ALT following baicalin administration in chemically induced hepatotoxicity models, suggesting [hepatoprotective](/ingredients/condition/detox) potential. A limited number of small human studies have examined Scutellaria baicalensis in combination herbal formulas (e.g., Chinese patent medicines), making it difficult to isolate the single-ingredient effect. Overall, the evidence base is promising but preliminary, and large-scale randomized controlled trials in humans are lacking.

## Nutritional Profile

Baical Skullcap (Scutellaria baicalensis) root is not consumed as a macronutrient source but contains a dense array of bioactive flavonoids and polyphenols. Primary bioactive compounds include: Baicalin (baicalein-7-glucuronide) at 10–15% dry weight of root, making it the most abundant constituent; Baicalein (aglycone form) at approximately 1–3% dry weight; Wogonin at 1–2% dry weight; Wogonoside (wogonin-7-glucuronide) at 0.5–1.5% dry weight; Oroxylin A and its glucuronide at trace to 0.5% dry weight; Scutellarein and scutellarein glycosides at trace levels. Secondary phytochemicals include iridoids, sterols (beta-sitosterol), and amino acids including gamma-aminobutyric acid (GABA) precursors. Mineral content of the dried root includes modest calcium (~4–6 mg/g dry weight), potassium, and iron, though these are not clinically significant at typical supplemental doses (3–9 g dried root/day or standardized extracts of 400–500 mg). Bioavailability notes: Baicalin undergoes hydrolysis by intestinal and gut-microbial beta-glucuronidases to the more bioavailable aglycone baicalein before absorption; peak plasma concentrations of baicalein occur approximately 1–2 hours post-oral ingestion. Wogonin has moderate oral bioavailability enhanced by lipid co-administration. Standardized extracts are typically normalized to 35–85% total flavonoids (as baicalin).

## Dosage & Preparation

In animal studies, skullcap extract was administered at 25 mg/kg body weight orally for 16 days, while isolated wogonin was given at 1 mg/kg body weight. The butanol fraction contains approximately 13.38% ± 0.07% total polyphenol content. No standardized human dosage recommendations are available from clinical trials. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Baical Skullcap is generally considered well-tolerated at typical supplemental doses (200–500 mg standardized extract daily), but hepatotoxicity cases have been reported with products adulterated by Teucrium species mislabeled as skullcap. It may potentiate the effects of anticoagulants such as warfarin by inhibiting CYP2C9 enzyme activity, and caution is warranted when co-administering with immunosuppressant drugs given its immune-modulating activity. Animal studies suggest possible uterotonic effects, making it contraindicated during pregnancy. Individuals with autoimmune conditions should consult a healthcare provider before use due to its [cytokine](/ingredients/condition/inflammation)-modulating properties.

## Scientific Research

The available research consists primarily of preclinical studies including in vitro cell-based experiments and animal models. No human clinical trials, randomized controlled trials (RCTs), or meta-analyses with PubMed identifiers were provided in the research dossier. Current evidence is limited to laboratory and animal research examining [immune modulation](/ingredients/condition/immune-support), anti-cancer, and [hepatoprotective](/ingredients/condition/detox) effects.

## Historical & Cultural Context

Baical skullcap has been widely used in traditional Chinese, Japanese, and Korean medicine for centuries to treat [inflammation](/ingredients/condition/inflammation), allergy, and bacterial and viral infections. In Chinese medicine specifically, the root has been used for psychiatric disorders, representing a foundational component of East Asian herbal pharmacopeias.

## Synergistic Combinations

Green tea extract, Milk thistle, Turmeric, Quercetin, Resveratrol

## Frequently Asked Questions

### What is the difference between Baical Skullcap and American Skullcap?

Baical Skullcap (Scutellaria baicalensis) is a Chinese medicinal root containing high concentrations of baicalin (up to 40% dry weight), whereas American Skullcap (Scutellaria lateriflora) is an aerial-part herb traditionally used for anxiety and nervous system support with a distinct flavonoid profile including scutellarein. Their therapeutic applications, primary bioactives, and evidence bases are substantially different and the two should not be used interchangeably.

### What dose of Baical Skullcap is used in studies?

Preclinical rodent studies have used baicalin doses ranging from 50–200 mg/kg body weight, which do not translate directly to human dosing. Human-relevant supplemental products are typically standardized to 85–95% baicalin content and used at 200–500 mg of extract per day, though no definitive human clinical dose has been established through large-scale trials. Practitioners of Traditional Chinese Medicine often use 3–9 grams of dried root in decoction form.

### Can Baical Skullcap help with allergies?

Animal research shows that wogonin and baicalin inhibit IL-4 production dose-dependently in mast cells and T-helper cells, suppressing Th2-dominant immune responses that drive allergic inflammation such as hay fever and atopic dermatitis. Baicalein also inhibits 5-lipoxygenase, blocking leukotriene synthesis, which is a key pathway in allergic bronchoconstriction. However, no adequately powered human RCTs have confirmed antiallergic efficacy specifically for Baical Skullcap as a standalone supplement.

### Is Baical Skullcap safe for the liver?

Preclinical evidence suggests baicalin is hepatoprotective, reducing AST and ALT enzyme elevations in models of acetaminophen- and carbon tetrachloride-induced liver injury, partly through antioxidant Nrf2 pathway activation. Paradoxically, liver injury cases associated with skullcap supplements have been documented, predominantly linked to adulteration with Teucrium chamaedrys (germander), which is hepatotoxic. Pure, authenticated Scutellaria baicalensis products appear to have a favorable liver safety profile, but sourcing and third-party testing are critical.

### Does Baical Skullcap interact with medications?

Baicalin and baicalein inhibit cytochrome P450 enzymes CYP2C9 and CYP3A4, which metabolize many pharmaceutical drugs including warfarin, statins, and certain antiepileptics, potentially raising plasma drug levels and increasing side effect risk. Wogonin has demonstrated P-glycoprotein (P-gp) inhibitory activity, which could affect the absorption and elimination of P-gp substrate drugs. Patients on anticoagulants, immunosuppressants, or narrow therapeutic index medications should seek physician guidance before using Baical Skullcap supplements.

### What is the most bioavailable form of Baical Skullcap, and does extraction method affect its potency?

Standardized extracts containing baicalin and wogonin as active markers typically demonstrate higher bioavailability than raw herb preparations. Traditional water decoctions and modern ethanol extracts both activate these compounds, but standardized extracts allow for consistent dosing and improved absorption of the key flavonoid constituents. The extraction method significantly impacts the concentration of bioactive compounds like baicalein, which shows better tissue penetration than its glucoside form baicalin.

### Who should avoid Baical Skullcap supplementation, and are there specific populations at higher risk?

Pregnant and nursing women should avoid Baical Skullcap due to limited safety data in these populations and its immune-modulating effects on developing fetuses. Individuals with active liver disease requiring medical management should consult a healthcare provider before use, despite hepatoprotective properties shown in preclinical studies. Those taking immunosuppressant medications or undergoing cancer treatment should seek professional guidance, as the herb's immune-modulating and potential anti-cancer properties may interact with such therapies.

### What does current clinical research show about Baical Skullcap's effectiveness compared to its traditional use claims?

While traditional Chinese medicine has used Baical Skullcap for centuries to treat inflammation and infections, most robust clinical evidence in humans remains limited, with stronger data available from animal and in vitro studies. Research demonstrates its anti-inflammatory markers (reduced AST/ALT enzymes) and immune-modulating effects (IL-4 and interferon gamma suppression) align with traditional uses for allergic and inflammatory conditions. Human trials are generally smaller and less numerous than preclinical studies, meaning traditional applications show scientific plausibility but require larger clinical validation for definitive efficacy claims.

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