Bi Xie | Dioscoreae Hypoglaucae Rhizoma | Long Yam Root
Properties: Bitter, Neutral
Channels Entered: Urinary Bladder, Liver, Stomach
Bi Xie is best known in Chinese medicine for its unique ability to “separate the clear from the turbid.” This refers to its role in transforming and draining dampness, especially when excess fluids become heavy, cloudy, or infected. With a bitter and neutral nature, Bi Xie resolves dampness without over-drying, making it valuable for both internal and external conditions.
Traditional Uses:
- Treat cloudy urination and leukorrhea
- Support the Bladder in draining dampness and clearing heat
- Relieve damp-heat skin conditions with swelling or discharge
- Address “damp turbidity” lodged in the lower burner (urinary, reproductive tract, or skin)
Active Constituents:
- Steroidal saponins & dioscin – Deliver anti-inflammatory, antimicrobial, and diuretic effects
- Support urinary and kidney health by reducing infection risk and maintaining healthy fluid balance
Recent studies reinforce Bi Xie’s traditional applications. Dioscin has been identified as a major bioactive compound with strong antimicrobial and anti-inflammatory activity (Qin et al., 2025). Broader research on Dioscorea species also highlights that Bi Xie is naturally rich in steroidal saponins, polysaccharides, and polyphenols, compounds with potent anti-inflammatory and antioxidant effects that support skin and urinary health through key molecular pathways.
These findings align with Bi Xie’s classical role of clearing damp-heat, particularly in the urinary and reproductive systems, while also pointing to protective effects on the kidneys and urinary tract.
Bi Xie is featured in Yoni Wash White, where it helps clear heat, calm inflammation, and maintain healthy moisture balance—without harsh chemicals. Some users notice increased urination when using this formula, which reflects Bi Xie’s natural mechanism of action: directing turbidity downward through the urine to restore balance in the urinary and reproductive tract. Gentle yet powerful, Bi Xie supports sensitive skin, relieves irritation, and promotes long-term harmony for the yoni.
Citations:
Bensky, D., Clavey, S., & Stöger, E. (2004). Chinese herbal medicine : materia medica. Eastland Press, Cop.
Qin, Z., Du, Y., Zhong, Y., Gu, Z., Zheng, Q., Zheng, Y., Zhang, D., & Guo, L. (2025). Purification of steroidal saponins from dioscoreae hypoglaucae rhizoma by macroporous resin and evaluation of their anti-inflammatory effect. Journal of Chromatography B, 1265, 124769. https://doi.org/10.1016/j.jchromb.2025.124769
Wang, Z., Zhao, S., Tao, S., Hou, G., Zhao, F., Tan, S., & Meng, Q. (2023). Dioscorea spp.: Bioactive Compounds and Potential for the Treatment of Inflammatory and Metabolic Diseases. Molecules, 28(6), 2878. https://doi.org/10.3390/molecules28062878
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