Standardized Herbal Supplement. Promotes head comfort. Feverfew aerial parts (tanacetum parthenium) have been studied extensively for head health. Since 1972. Standardized extract are guaranteed to contain a specific quantity of a known marker compound, and are laboratory tested to insure consistent potency. Nature's Answer capsules feature standardized extracts enhanced (Holistically Balanced) with the highest quality of organic, responsibly wildcrafted or cultivated herbs, which maintain the naturally-occurring constituents found in the plant. Manufactured to cGMP (current Good Manufacturing Practices) standards; free of synthetic ingredients. Unconditionally guaranteed. Nature's Answer quality without question pioneers since 1972. (These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.)