Yu Ping Feng San (Jade Screen Powder) — Home Decoction or Ready-Made Granules

Why people make this formula

The name translates literally as “Jade Screen Powder,” an image that captures its purpose well: like an invisible screen standing between the body and the outside world, this three-herb formula is designed to shore up the body’s outer defences (wei qi in Chinese medicine terms), making it harder for wind, cold, and pathogens to penetrate. It is particularly valued for children and adults who seem to catch every illness that passes through the room, and for those who sweat easily even without exertion. Ready-made granules are available from Chinese herb shops and are convenient to keep on hand; the three raw herbs can also be decocted simply at home.