Echinacea and Goldenseal features a proprietary blend of two species of Echinacea, angustifolia and purpurea, plus Goldenseal root (Hydrastis canadensis), herbs recognized for their beneficial effects on mucous membranes. Together they offer a higher level of support in keeping the body"s natural defense mechanisms healthy.Nature"s Answer capsules feature the highest quality of organic, responsibly wildcrafted or cultivated herbs, which maintain the naturally-occurring constituents found in the plant. They are carefully selected and finely milled (micronized), allowing faster absorption by the body; Manufactured to cGMP (current Good Manufacturing Practices) standards; Free of synthetic ingredients. Unconditionally Guaranteed.