Bupleurum (Chai Hu).
Key herb for liver qi stagnation in TCM Supports liver function, reduces stress-related symptoms, and aids digestion
Reviewed March 2026
- Category
- Herb
- Also filed under
- Liver QiStressTCM Formulas
What Bupleurum (Chai Hu) is, and what it does.
- Does it work
- Strong traditional use but limited modern human trials. Worth trying for stress and liver.
- How much to take
- 1.5-6g dried root or 200-400mg extract daily
- Time to feel it
- No trial has timed it. Traditional practice runs a course of two to four weeks, and shifts in how stress and digestion sit tend to show up across that stretch.
- The first dose
- Day one is quiet, the bitter tea aside. This is a course herb rather than a same-day one, and traditional practice runs it across two to four weeks.
- With regular use
- Better stress resilience, improved mood, digestive ease.
- How well tolerated
- Generally well tolerated short-term. Prolonged high-dose use may stress liver.
- How it feels
- Bitter and earthy as a decoction. People describe less of a wound-up, pent-up feeling by the second or third week rather than any same-day shift.
- The overlooked benefit
- Saikosaponins are surfactants, so a chai hu decoction helps disperse the oilier constituents of the herbs brewed with it. Part of why it anchors so many classic formulas.
250 to 500mg a day is where Bupleurum (Chai Hu) works.
Source: Chinese Pharmacopoeia; Li & Chen (2017) Phytother Res review
The proof, claim by claim.
These words describe the research, not the molecule's worth. Research strength is how much work stands behind one claim, and it is never a product score.
Bupleurum (Chai Hu) has emerging evidence. Based on 24+ studies.
- everyday stress and a settled moodNarrative review
- everyday liver function supportAnimal study
- a healthy inflammatory responseIn vitro study
- digestive comfort after mealsNarrative review
Questions people ask about Bupleurum (Chai Hu).
- When should I take it?
- Timing matters less than consistency. Pick a time that works for you and take it daily.
- Can I take it with other supplements?
- Usually fine. The main thing to watch is not doubling up on the same ingredient from different products. If you're on prescription meds, check with your pharmacist first.
- Any side effects to watch for?
- Most people tolerate it well at recommended doses. GI upset is the most common complaint with any supplement. Start with a lower dose and work up. If something feels off, stop and reassess.
- Who benefits most from this?
- People who've already covered the basics (diet, sleep, exercise) and want to fine-tune. It's not essential, but could be worthwhile for the right person.
Why these belong in the same formula. Each row says what the basis is, from settled biochemistry through to a trial that measured the pair.
Chai hu and huang qin are the ruling pair of the harmonising formulas and have been used together for centuries. Bupleurum saikosaponins and scutellaria baicalin are different constituent classes, and the saponins also help disperse the flavonoid fraction in a decoction.
Gan cao appears in nearly every chai hu formula as the harmonising herb. Glycyrrhizin is a surface-active saponin that helps keep the poorly soluble saikosaponins dispersed in a water decoction.
Licorice root plays the same harmonising and solubilising role in Western-supplied bupleurum formulas that gan cao plays in the traditional decoction. Its saponins raise the dispersion of the bupleurum saponin fraction.
Ren shen sits alongside chai hu in the traditional harmonising formula as the tonifying counterweight to a dispersing herb. The pairing is one of the oldest documented combinations in the tradition.
Jujube is included with chai hu and fresh ginger as the standard pair that moderates a dispersing formula and improves its palatability. Its sugars and saponins also act as a carrier in decoction.
Fresh ginger accompanies chai hu in the traditional harmonising formula to settle the stomach against a dispersing herb. Gingerols also promote gastric emptying, which affects how the rest of the formula is delivered.
Bai zhu is one of the fixed components of the free and easy wanderer formula built around chai hu. It supplies the spleen-supporting side while chai hu supplies the liver-moving side.
Dang gui pairs with chai hu in the same classical formula as the blood-nourishing counterpart to a qi-moving herb. The combination is documented in the tradition rather than inferred.
Peppermint appears alongside bupleurum in several classical liver-qi formulations, where it is described as assisting the same dispersing action at a low dose. The pairing is documented in the herbal literature rather than in trials of the two isolated. Both also carry volatile constituents that are lost with prolonged decoction.
Schisandra lignans and bupleurum saikosaponins both appear in botanical formulas positioned around normal hepatic function, and each has separate preclinical work behind it. They are not a classical pair in the strict sense. Anyone combining them is stacking two separately studied botanicals, not using an established formula.
Silymarin has substantially more human data behind it than bupleurum does, and the two appear together in Western herbal liver formulas. Their mechanisms are described separately in the preclinical literature and have not been tested in combination. The pairing is commercial and mechanistic rather than evidenced.
Bupleurum is used with astragalus in classical formulas where a small dose of chai hu is described as raising the yang qi that the tonic herbs supply. The dose of bupleurum in that role is deliberately low. This is documented formula construction from the classical corpus.
Curcumin and saikosaponins are both described in preclinical work as modulating inflammatory signalling, and the two are combined in botanical products on that shared rationale. No combination study exists. Both also raise absorption questions of their own, which the formulation has to solve separately.
Magnolia bark is used with bupleurum in classical constructions aimed at the same qi-constraint pattern, where magnolia works lower in the trunk and bupleurum higher. The pairing comes from the classical formula literature. It carries no modern combination evidence.
Chamomile is used alongside bupleurum in modern Western blends aimed at tension and digestive comfort, on the strength of chamomile's own apigenin content. This is a modern commercial pairing rather than a classical or evidenced one. Neither herb's contribution can be separated in such a blend.
Lemon balm is added to bupleurum-containing blends for its own calming positioning, not because the two share a mechanism. Both carry volatile constituents affected by extraction method. The pairing is a formulation choice with no combination evidence.
Reishi triterpenes and bupleurum saikosaponins are both triterpenoid-bearing botanicals, which is a chemical resemblance rather than a shared mechanism. They appear together in commercial blends. No combination work exists.
Rhodiola is combined with bupleurum in stress-positioned botanical products, where rhodiola carries most of the human evidence in the blend. The two come from unrelated traditions and have no classical pairing. Any effect claimed for such a blend belongs to the blend, not to bupleurum.
Saikosaponins are amphiphilic glycosides that lower surface tension in the gut lumen, which is part of why concentrated saponin preparations can cause gastrointestinal upset. Enzyme blends are added to bitter botanical formulas for tolerability rather than for an interaction with the saponins themselves. The rationale is formulation comfort, not pharmacology.
Nothing specific on file for Bupleurum (Chai Hu). Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.What Bupleurum (Chai Hu) actually does.
The characteristic constituents of Bupleurum root are saikosaponins, oleanane-type triterpenoid glycosides, of which saikosaponins a, c and d are the ones most commonly used for standardisation.
Saikosaponins are amphiphilic surfactant molecules: a lipophilic triterpene core with sugar chains attached, which is why saponin-rich extracts foam in water and lower surface tension.
Saikosaponin a and d convert to the b-series saikosaponins under acid and heat, which is why decoction, extraction pH and processing method change the constituent profile of a finished extract.
The root also contains polysaccharides, essential oil components and flavonoids including rutin and quercetin derivatives, so a water extract and an alcohol extract deliver different constituent sets.
Where Bupleurum (Chai Hu) comes from.
It is a root, dug up, cleaned and dried, and then either boiled into a tea the traditional way or extracted with water or alcohol and dried into a powder. How it is processed genuinely changes what is in it, because the signature compounds shift chemically with heat and acid. A label that says 10:1 tells you how much root went in, not how much of the active compounds came out.
Made from a plant. What ends up in the capsule tracks the harvest, so batch testing and a stated marker matter more here than with a made molecule.
Roots are harvested from cultivated or wild plants, typically in spring or autumn, mainly in northern and northeastern China. Species identity matters because the two pharmacopoeial species differ in saponin profile and several look-alike species are recorded as adulterants.
Roots are washed, the aerial parts and rootlets are removed, and the material is sun or air dried before cutting into slices.
Some grades are stir-processed with rice vinegar or with wine, a heat-and-acid step that converts part of the saikosaponin a and d content and is specified by name in classical prescriptions.
Sliced root is extracted with hot water for a decoction-style product, or with an ethanol and water mixture where the saponin fraction is the target.
The extract is filtered to remove particulates, then concentrated under vacuum at reduced temperature to limit further conversion of the acid- and heat-labile saponins.
The concentrate is assayed by HPLC for saikosaponins a, c and d and adjusted with a carrier, or simply declared by its extraction ratio where no marker assay is run.
The concentrate is spray dried onto a carrier such as maltodextrin or the root's own powder, then blended into granules, capsules or tablets.
Getting Bupleurum (Chai Hu) from food.
The whole-food sources on file. A supplement closes the gap, it does not replace dinner.
A gram-for-gram figure (how much of each you would eat to match a dose) will appear here once it is sourced and reviewed. This page will not print a number it cannot cite.
The forms it comes in.
The essence, in one line each.
- The review surveys natural compounds discussed in relation to appetite regulation and mood-related endpoints and names bupleurum-family constituents among them; it is a mentions-only secondary source and reports no measured outcome for bupleurum on its own.Narrative review. Ma et al., 2025 (Nutrients). PMID 40733008 ↗
These are the studies our verdict leans on, chosen from the 1 we read for Bupleurum (Chai Hu). The full linked list is below.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.