Rhizoma Smilacis Glabrae
Tu Fu Ling clears damp-heat toxins from deep within the body — a classical remedy for skin conditions, joint pain and urinary tract infections.
What Is Rhizoma Smilacis Glabrae?
Rhizoma Smilacis Glabrae (土茯苓, Tǔ Fú Líng) is the dried rhizome of Smilax glabra, a climbing vine in the Smilacaceae family widespread across southern China, Southeast Asia and India. Despite its name containing 'fu ling' (茯苓 — the word for Poria), it is an entirely distinct herb with a different taxonomy and action profile. Tǔ Fú Líng is classified as sweet and bland, with a neutral thermal nature, and acts primarily on the Liver and Stomach channels.
Its principal actions are clearing heat, resolving dampness and detoxifying — particularly useful for damp-heat toxins that have lodged in the joints, skin or urinary tract. Classically, it was the chief herb used to treat syphilis (mei du) introduced to China in the 16th century, demonstrating its powerful detoxifying capability. Today it is used for skin disorders such as psoriasis and eczema, joint pain and swelling from damp-heat Bi syndrome, urinary tract infections with heat signs, and mercury or heavy-metal toxicity. It also has the notable property of counteracting mercury poisoning, which remains clinically relevant.
History & Origin
Tu Fu Ling entered the materia medica record significantly during the Ming Dynasty following the introduction of syphilis to China, where it became the primary treatment. However, its use for damp-heat skin and joint conditions predates this era.
Traditional Uses
Skin Disorders
A cornerstone herb for damp-heat skin conditions including psoriasis, eczema, weeping sores, acne and dermatitis — used both internally in decoctions and as a food-herb in soups.
Joint Pain & Bi Syndrome
Clears damp-heat from the joints to relieve swelling, redness and pain of hot Bi syndrome, including gouty arthritis and reactive joint inflammation.
Urinary Tract Infections
Drains damp-heat from the lower Jiao to address urinary tract infections with symptoms of burning, urgent or painful urination and cloudy urine.
Detoxification
A classical detoxifying herb for deep-seated toxins including syphilitic toxin and heavy-metal (particularly mercury) poisoning, reflecting its powerful clearing action.
Liver Protection
Modern research indicates hepatoprotective effects, supporting use in conditions of liver inflammation and toxin-induced liver stress.
Health Benefits
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Deep DetoxificationClears heat toxins from deep within the body, historically used for syphilis and heavy-metal poisoning and now applied to chronic inflammatory conditions.
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Clears Damp-HeatResolves damp-heat from skin, joints and the urinary tract, addressing a wide spectrum of inflammatory and infectious conditions.
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Promotes Skin ClarityA popular herb in Cantonese dietary therapy for improving skin quality by clearing internal dampness and toxins that manifest on the skin surface.
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Relieves Joint InflammationTargets damp-heat Bi syndrome to reduce joint swelling, redness and pain, relevant to gout and inflammatory arthritis.
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Liver ProtectionBioactive compounds demonstrate hepatoprotective effects, supporting the liver's detoxification function under conditions of chemical stress.
The information on this page is for educational and informational purposes only and is not intended as medical advice. Please consult a qualified healthcare practitioner before using any herbal products.