Our Astragalus root extract tincture is made with a high concentrate powder (with 30% polysaccharides) which makes it even more effective to boost immunity (it increases white blood cells) and act against inflammation; it improves kieney function and heals the kidney if it is damaged; it increases apoptosis (destruction of abnormal cellular development), and many other important health benefits. The tincture is in many of our tonics including HerbShield, KidneyShield, ColdLess Antiviral, and others. This strong powder is also in our ABC Powder.