A practical guide to Chao Chi Shao: what it is, how Traditional Chinese Medicine uses it, the classical formulas it appears in, and who should be careful with it.
Last reviewed Oct 28, 2026| Latin Name | Paeoniae Radix Rubra |
|---|---|
| Chinese Name & Pinyin | 炒赤芍 · Chao Chi Shao |
| Medicinal Part | Roots and rhizomes |
| The item | Chao Chi Shao is the stir-fried root of red peony. Bai Shao (white peony) is not this drug. It is used as a decoction piece. |
| Nature and channels | Bitter, slightly cold. Enters the Liver. Bitter slight cold drains blood-heat and scatters stasis to ease pain. |
| Pharmacopoeia line | Clears blood-heat and dissipates stasis; eases pain. Used for red sore swollen eyes, blood-heat heavy menses, abdominal pain and blocked menses from qi-blood stasis, and early yang-pattern sores and swellings. |
| Pattern cues | Red sore eyes. Dry hot itchy skin. Menstrual pain. Post-injury fixed pain. Early red-hot boils. |
| In this article | Chao Chi Shao versus Bai Shao. Why stir-frying softens the cold. Why pregnancy and heavy menses are cautions. Why a spreading boil needs a clinic. Who should skip it. |
Chao Chi Shao (炒赤芍; Chǎo Chì Sháo; Latin: Radix Paeoniae Rubra; English: Red Peony Root) is the stir-fried dried root of the red peony (Paeonia), dug in autumn from several northern and western Chinese regions, sun-dried, then dry-fried (or vinegar-fried) to soften its cold edge. It is bitter and slightly cold, enters the Liver channel, and its core actions are to clear blood-heat, and to move stasis and ease pain. It is used as a decoction piece. The usual amount is 6–12 g. It needs no special handling — not decocted first, not added late, not wrapped; it simmers with the other herbs for about 20 minutes.
It is not Bai Shao. Bai Shao (white peony root) is sweet-sour and slightly cold, and leans to gather and nourish — it nourishes the blood, regulates menstruation, and softens the liver to ease pain. Chao Chi Shao leans to scatter and drain, clearing blood-heat and moving stasis rather than tonifying. It is not for a cold, weak digestion with frequent abdominal pain, diarrhea, or cold hands and feet; over time it may add to the internal cold. Use caution in pregnancy and with very heavy menses, under a practitioner. A spreading, red-hot swelling that is getting worse needs a clinic first.
It is used most often for three patterns:
Bitter and slightly cold, leaning to scatter and drain, it is not a daily “blood-moving” herb to keep taking. Moving and draining when there is no stasis, on a cold-deficiency body, damages the spleen-stomach and adds to internal cold.
When blood-heat harasses the upper body, or qi-blood stasis blocks the flow, red sore eyes, fixed pain, or menstrual discomfort are common. Chao Chi Shao is bitter and slightly cold. It clears blood-heat and moves stasis to ease pain, which is why it appears in Tao Hong Si Wu Tang–type formulas for stasis with blood deficiency and Xian Fang Huo Ming Yin–type formulas for early yang-pattern sores. It moves more than it holds. A cold, weak digestion, with no heat or stasis, gets worse if more is added.
Identification & Quality Standard
Paeoniae Radix Rubra
Botanical Origin
The dried root of Paeonia lactiflora Pall. (Paeoniaceae), stir-fried.
Production Regions
Primarily produced in Inner Mongolia, Liaoning, Hebei, Sichuan.
Quality Requirements
Superior is long, thick, elastic, white cross-section.
Round-like thin slices. Surface brown. Cut surface pinkish-white or pink, with distinct radial texture in the xylem. Slight scorch spots. Hard and brittle.
Traditional texts and industry experience value Chi Shao from several Chinese regions, which differ slightly in root thickness and skin color — e.g. one region's roots are thicker and darker, another's are thinner — though real quality also hinges on variety, harvest time, processing, and storage.
Good-quality Chi Shao usually looks like this:
Watch out for look-alikes — roots of other buttercup-family plants; tell them apart by the cross-section lines and smell.
Bitter; Slightly coldLiver
Chi Shao has a clear paper trail in Chinese herbal literature. A few highlights:
Different generations of physicians read Chi Shao a little differently. Some stressed its clearing blood-heat role, for red eyes and swellings from internal heat. Others stressed its moving stasis and easing pain role, for abdominal pain and blocked menses from qi-blood stasis. Still others noted it is not for long-term care of a cold-deficiency constitution, to avoid adding to the internal cold. These differences make its range more targeted, and show it is not a cure-all.
This evolution is a good reminder of a core idea in traditional Chinese medicine: herbs are chosen to match the person, not just the symptom.
Traditional Functions
Clears heat and cools blood, disperses stasis and relieves pain.
What it is: The first core use of Chao Chi Shao is to clear heat from the liver channel, easing discomfort from blood-heat inside.
When it was used: Traditionally for red, sore, swollen eyes, dry, hot itchy skin, a dry mouth and tongue, and, for women, heavy menstrual flow from blood-heat.
Common partners: Often paired with clearing or qi-blood herbs such as Sheng Di or Ju Hua, to strengthen the clearing while avoiding too-cold harm to the spleen-stomach.
Who should not self-use: People with cold, weak digestion, a habit of abdominal pain or diarrhea, or cold hands and feet should avoid it on their own, so it does not add to the internal cold.
What it is: The second core use focuses on sorting out qi-blood stasis and easing the pain that comes from poor qi-blood flow.
When it was used: Traditionally for menstrual pain, local pain after a sprain, and shoulder-neck or low-back discomfort from qi-blood stasis.
Common partners: Often paired with qi-moving, blood-activating herbs such as Dang Gui or Chuan Xiong to strengthen the stasis-moving, pain-easing effect.
Who should not self-use: Pregnant women and people with very heavy menstrual flow should avoid it on their own, so it does not disturb the qi-blood state.
A common pairing is Chi Shao with Dang Gui. Chi Shao moves stasis, eases pain, and clears blood-heat; Dang Gui tonifies the blood, activates it, and regulates menstruation to ease pain. Together they both sort out qi-blood stasis and look after the blood, so the stasis-moving does not harm the qi-blood — a fit for women's menstrual pain and sluggish flow from qi-blood stasis. This pairing should be matched to the person, not copied from a list.
Modern research offers useful context, but Traditional Chinese Medicine prescribes on whole-pattern diagnosis rather than isolated compounds.
Modern studies have detected several groups of compounds in Chi Shao:
One important point: detecting a compound in a plant does not mean that compound produces the same effect in the human body. Lab chemistry and human response are two different things.
Research so far is mostly at the early laboratory stage. What has been observed:
These are promising early findings, not proven human benefits. Human clinical research is still limited, and most conclusions need more data.
It is important to read the research honestly. Four limits stand out:
Bai Shao (white peony root) is the herb Chi Shao is most often compared with. They share quite a lot:
Despite the similarities, the two herbs differ in a few practical ways:
Chao Chi Shao leans more toward clearing blood-heat and moving stasis to ease pain, while Bai Shao leans toward nourishing the blood, regulating menstruation, and softening the liver to ease pain. Both can be used for qi-blood care, but they are not freely interchangeable.
A formula combines several herbs to create a whole effect. This is different from using a single herb in one key way:
A gentle, everyday way to meet Chao Chi Shao:
The raw and stir-fried forms differ in focus: raw Sheng Chi Shao leans to clearing blood-heat; Chao Chi Shao, after stir-frying, is a little gentler, better for everyday care. Chao Chi Shao needs no "decoct first," "add later," or "wrap" steps — for a home decoction, place it with the other ingredients in a pot, add water, bring to a boil over high heat, then simmer over low heat for about 20 minutes.
Remember that different forms are not directly convertible — the slice dose and the tea dose differ greatly; do not use the tea amount for a prescription dose.
In traditional prescriptions, a common dose of Chao Chi Shao is about 6 to 12 g. The food-style dose is 3 to 5 g, smaller.
Chao Chi Shao is not meant for long-term, continuous use. Generally, each use should not exceed 7 days; for longer care, check with a practitioner or pharmacist. Pregnant women and children should adjust the dose and duration under professional guidance.
What deserves attention here is drug interaction:
Used the wrong way, Chao Chi Shao may bring gut discomfort or mild diarrhea; overuse may worsen these.
If you notice clear discomfort, allergic signs, ongoing vomiting, trouble breathing, confusion, or symptoms that worsen quickly, stop use and seek medical attention promptly.
Nong's Chao Chi Shao (Fried Red Peony Root) Single Herb 5:1 Concentrated Granules
$64.62
Hoi Tin Tao Hong Si Wu Tang (Peach Kernel and Safflower Four Substance Decoction) 5:1 Concentrated Granules
$26.32
Nong's Tao Hong Si Wu Tang (Peach Kernel and Safflower Four Substance Decoction) 5:1 Concentrated Granules
$54.46
Han's Tao Hong Si Wu Tang (Peach Kernel, Carthamus & Four Substances Decoction) 5:1 Concentrated Granules
$57.19
Hoi Tin Xian Fang Huo Ming Yin (Immortal's Life-Prolonging Beverage) 5:1 Concentrated Granules
$30.50
Han's Zhen Ren Huo Ming Yin (Immortal Life-Giving Drink) 5:1 Concentrated Granules
$74.68
Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.
