Poria Peel

Traditional Use

Primary Actions

• Promotes urination and reduces edema - Fu Ling Pi specializes in moving superficial and generalized water swelling downward, especially puffy skin and edema of the face or limbs.
• Opens the water pathways more directly than the inner sclerotium - compared with whole Fu Ling, the peel is less about digestion and Shen support and more about visible edema and damp retention.
• Supports qi-moving edema formulas - it is often combined with other peels and damp-draining herbs when swelling, distention, and sluggish water movement predominate.

Secondary Actions

• This is the part-specific outer peel of the Poria material, not just a duplicate of Fu Ling. In practice it narrows the family toward edema rather than toward Spleen support or calming the mind.
• Because it is milder and more superficial, Fu Ling Pi is often chosen when the goal is steady fluid movement rather than strong purgation or harsh diuresis.

Classic Formulas

• Wu Pi San - classic five-peel formula in which Fu Ling Pi helps reduce generalized edema and promote urination.
• Fu Ling Pi with Da Fu Pi and Sheng Jiang Pi - common edema-focused pairing for puffy swelling and damp water retention.
• Formulas for ascitic or abdominal water distention often use Fu Ling Pi when the skin and body surface look visibly burdened with retained fluid.

Classical References

• Official Chinese references describe Fu Ling Pi as sweet, bland, and neutral, entering the Lung, Spleen, and Kidney to promote urination and reduce edema.
• Traditional explanation consistently contrasts it with the inner Poria body: the peel is more edema-directed, while the interior has broader Spleen and Shen actions.
• Its main indications are edema, puffiness, and difficult water movement rather than palpitations or insomnia.