Formulas By Michael Tierra, L.c., O.M.D. Valerian root has been the primary herb of choice for supporting a restful sleep since the ninth century. Modern research has confirmed this traditional use, and has identified valerenic acid, a component of the essential oil, as primarily responsible for its relaxing effects. Planetary Formulas® Full Spectrum Valerian Extract combines 450 mg of a concentrated standardized extract yielding 0.8% valerenic acid, and additional 200 mg of organically cultivated whole valerian root.
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