Astragalus Formula is a proprietary blend developed by Janet Zand, OMD, L.Ac. ZAND Formulas combine the optimum potency of key ingredients with a blend of supportive herbs to restore and maintain the body's natural state of balance. It may be taken with ZAND's Insure Herbal Formula for optimal health during the cold, flu and Exaggerated response of defense mechanism seasons. This bottle is sealed for your protection. Purchase only if seal is intact. Contains no sugar, fillers, binders, artificial flavors, artificial color, yeast, wheat, gluten, soy, dairy or starch.