Yu Ping Feng San
Star玉屏风散 (Jade Windscreen Powder)
Source: Dan Xi Xin Fa (Teachings of Dan-xi) — Zhu Danxi (Yuan, 1347)
Last updated July 22, 2026
Description
Yu Ping Feng San (Jade Windscreen Powder) is the classic formula for strengthening Wei Qi and consolidating the exterior to prevent recurrent illness. The formula creates a 'jade windscreen' against pathogenic invasion by tonifying Spleen and Lung Qi while consolidating the exterior. It is essential for immune deficiency, recurrent colds, and spontaneous sweating from Wei Qi deficiency.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
| Huang Qi | 12g | 44.44% | Jun (Chief) | Tonifies Wei Qi and Lung Qi, consolidates exterior, stops sweating. |
| Bai Zhu | 9g | 33.33% | Chen (Deputy) | Tonifies Spleen Qi (source of Wei Qi), dries dampness. |
| Fang Feng | 6g | 22.22% | Shi (Envoy) | Releases exterior, guides Huang Qi to the exterior, without depleting Wei Qi. |
Total weight: 30g
Preparation
Can be taken as powder with warm water. As decoction: simmer 20–25 minutes and take warm.
Dosage
Powder: 6–9g 2–3x/day. Decoction: 1 dose/day. Long-term preventive use is appropriate.
Conditions Addressed
Similar Formulas by composition
Match score combines dosage-weighted composition (cosine, 70%) with shared-herb overlap (Jaccard, 30%).
Traditional formula information is for educational purposes only. Herbal formulas should be prescribed by a qualified practitioner — dosages and combinations are individualized and can interact with medications.
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