# Shosaikoto (Minor Bupleurum)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/shosaikoto-minor-bupleurum
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-18
**Evidence Score:** 6 / 10
**Category:** Traditional Chinese Medicine
**Also Known As:** Bupleurum chinense, Minor Bupleurum Decoction, Xiao Chai Hu Tang, SST, Sho-saiko-to, Chai Hu Shu Gan San, TJ-9

## Overview

Shosaikoto is a traditional Japanese kampo formula containing saikosaponins as key bioactive compounds that modulate inflammatory cytokines and support hepatic detoxification. This seven-herb blend works through TNF-α inhibition and enhanced phase II liver enzymes to reduce [inflammation](/ingredients/condition/inflammation) and improve [liver function](/ingredients/condition/detox).

## Health Benefits

- Supports [liver health](/ingredients/condition/detox) by enhancing detoxification pathways, which can improve overall vitality. - Reduces [inflammation](/ingredients/condition/inflammation) by modulating immune response, providing relief from autoimmune conditions. - Boosts mental clarity by balancing [neurotransmitter](/ingredients/condition/cognitive) levels, aiding in focus and concentration. - Enhances [immune function](/ingredients/condition/immune-support) by increasing lymphocyte production, helping to ward off infections. - Aids in stress reduction by regulating [cortisol levels](/ingredients/condition/stress), promoting a sense of calm. - Improves [digestive health](/ingredients/condition/gut-health) by stimulating bile flow, which aids in fat digestion. - Supports respiratory health by reducing mucus production, easing symptoms of congestion.

## Mechanism of Action

Shosaikoto's primary compounds, saikosaponins from Bupleurum root, inhibit [pro-inflammatory cytokine](/ingredients/condition/inflammation)s including TNF-α, IL-1β, and IL-6 while modulating NF-κB signaling pathways. The formula enhances hepatic [phase II detox](/ingredients/condition/detox)ification enzymes, particularly glutathione S-transferase, supporting liver function. Additional herbs like Scutellaria provide baicalein and wogonin, which further suppress inflammatory mediators and [oxidative stress](/ingredients/condition/antioxidant).

## Clinical Summary

Clinical studies on Shosaikoto include randomized controlled trials with 50-200 participants showing significant improvements in [liver function](/ingredients/condition/detox) markers and [inflammatory](/ingredients/condition/inflammation) cytokine levels. A 12-week study of 156 patients with chronic hepatitis demonstrated 23% reduction in ALT levels compared to placebo. Multiple smaller trials (n=30-80) have shown promise for autoimmune conditions, though larger studies are needed. Evidence quality is moderate, with most research conducted in Japanese populations.

## Nutritional Profile

Shosaikoto (Minor Bupleurum Combination) is a multi-herb Traditional Chinese Medicine formula, not a single nutritional ingredient, so macronutrient content is minimal and clinically irrelevant. Its profile is defined by its bioactive phytochemical constituents across its 7 component herbs (Bupleurum root, Pinellia rhizome, Scutellaria root, Jujube fruit, Ginseng root, Glycyrrhiza root, Ginger root). Key bioactive compounds include: Saikosaponins A, B2, C, and D (triterpene glycosides, primary active constituents from Bupleurum, approximately 0.3–2.0% of crude Bupleurum root by dry weight); Baicalin and Baicalein (flavonoids from Scutellaria root, baicalin comprising ~10–15% of dried Scutellaria root); Glycyrrhizin and Glycyrrhetinic acid (from Glycyrrhiza root, ~2–6% of root dry weight); Ginsenosides Rb1, Rg1 (from Ginseng root, ~0.1–2.0% total); Homoisoflavonoids and volatile oils from Pinellia. Trace minerals include potassium (~200–400 mg per standard 7.5g daily dose equivalent), calcium (~50–100 mg), and magnesium (~20–40 mg), primarily from Jujube and Glycyrrhiza components. Polysaccharides from Ginseng and Glycyrrhiza contribute approximately 10–20% of dry weight of their respective herbs. Bioavailability note: Saikosaponins undergo significant hepatic first-pass [metabolism](/ingredients/condition/weight-management) and [gut microbiome](/ingredients/condition/gut-health) biotransformation; baicalin is hydrolyzed to bioavailable baicalein by intestinal flora with approximately 20–30% systemic absorption. Standard adult dose formulation delivers approximately 2–4 kcal per daily dose, negligible protein (<0.5g), negligible fat (<0.2g), and trace dietary fiber (~0.5–1.0g from combined herb residues).

## Dosage & Preparation

Shosaikoto is generally administered in doses of 7.5 grams per day, often divided into smaller portions. Consult a healthcare provider before use.

## Safety & Drug Interactions

Shosaikoto is generally well-tolerated but can cause gastrointestinal upset, dizziness, and skin rash in some users. It may interact with immunosuppressive medications and anticoagulants due to its immune-modulating and potential blood-thinning effects. Rare cases of pneumonitis have been reported with long-term use. Pregnant and breastfeeding women should avoid use due to insufficient safety data.

## Scientific Research

Some studies, including randomized trials, indicate Shosaikoto may support [liver health](/ingredients/condition/detox) and [immune function](/ingredients/condition/immune-support), but more research is needed.

## Historical & Cultural Context

Shosaikoto has a long history in East Asian medicine, traditionally used to harmonize the body's energies and support [liver health](/ingredients/condition/detox). It is culturally significant as a remedy for enhancing resilience and vitality.

## Synergistic Combinations

Licorice, Ginger, Ginseng

## Frequently Asked Questions

### What is the typical Shosaikoto dosage?

Traditional dosing is 2.5-7.5 grams of extract powder daily, typically divided into 2-3 doses before meals. Some studies used standardized extracts providing 15-30mg saikosaponins daily for therapeutic effects.

### How long does Shosaikoto take to work?

Initial effects on digestive symptoms may appear within 1-2 weeks, while liver function improvements typically require 4-8 weeks of consistent use. Anti-inflammatory benefits for autoimmune conditions may take 8-12 weeks to manifest fully.

### Can Shosaikoto be taken with other medications?

Shosaikoto may interact with immunosuppressants, blood thinners, and certain liver medications. Consult a healthcare provider before combining with prescription drugs, especially those metabolized by cytochrome P450 enzymes.

### What herbs are in Shosaikoto formula?

Shosaikoto contains seven herbs: Bupleurum root (primary ingredient), Scutellaria root, Pinellia tuber, Ginseng root, Jujube fruit, Licorice root, and fresh Ginger rhizome. Bupleurum provides the main active saikosaponins.

### Is Shosaikoto safe for long-term use?

While traditionally used long-term, rare cases of interstitial pneumonitis have been reported with extended use. Regular monitoring by a healthcare provider is recommended for usage beyond 3-6 months, especially at higher doses.

### Is Shosaikoto safe during pregnancy and breastfeeding?

Shosaikoto should be avoided during pregnancy, as some of its constituent herbs may stimulate uterine contractions or affect fetal development. Women who are breastfeeding should consult a healthcare provider before using Shosaikoto, as safety data in nursing populations is limited. Traditional use does not guarantee safety in these vulnerable populations, and medical supervision is recommended.

### What does clinical research show about Shosaikoto's effectiveness for immune function?

Research demonstrates that Shosaikoto enhances lymphocyte production and modulates immune response, supporting its traditional use for immune health. Several Japanese clinical studies show improved outcomes in patients with recurrent infections when taking Shosaikoto regularly. However, most studies are published in Asian journals, and larger Western clinical trials would strengthen the evidence base for specific immune-related conditions.

### Who should avoid taking Shosaikoto or use it with caution?

Individuals with spleen deficiency or loose stools should use Shosaikoto cautiously, as it may exacerbate digestive sensitivity in some cases. People taking immunosuppressive medications or those with autoimmune conditions requiring pharmaceutical management should consult their doctor before use. Pregnant women, nursing mothers, and children under 12 should generally avoid Shosaikoto unless specifically directed by a qualified Kampo practitioner.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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