This product is not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration.
Eight-herb Rehmannia formula
This herb is NOT recommended during pregnancy due to potential risks to the developing fetus.
This herb is NOT recommended while breastfeeding as effects on infants are unknown.
Consult your healthcare provider before use.
Classical Kampo/TCM formula with eight herbs centered on prepared Rehmannia; used for kidney yang deficiency — one of the most prescribed Kampo formulas.
Classical Kampo/TCM formula with eight herbs centered on prepared Rehmannia; used for kidney yang deficiency — one of the most prescribed Kampo formulas. Key active compounds include catalpol, rehmannioside, loganin.
catalpol, along with rehmannioside and loganin, are the primary bioactive compounds in Hachimijiogan. The specific pharmacological pathways require further study, though traditional use supports its efficacy.
Antidiabetic research
Limited clinical evidence; primarily supported by traditional use and preliminary studies
Renal protective
Limited clinical evidence; primarily supported by traditional use and preliminary studies
Anti-aging
Metabolic syndrome
Kidney yang deficiency in Kampo
Based on traditional use; clinical evidence limited
Elderly deficiency conditions (frequent urination, lower back pain)
Based on traditional use; clinical evidence limited
Diabetic conditions
Based on traditional use; clinical evidence limited
Most prescribed Kampo formula in Japan
Based on traditional use; clinical evidence limited
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