KI immune defence and energy formula contains astragalus, a popular herb used to enhance the immune system and shiitake mushroom to boost white blood cells. Olive leaf is also a powerful herb that assists with general health and wellbeing. Natural Medical Ingredients:Astragalus membranaceus root (astragalus) 250 mg (20:1 QCE 5 g) Lentinula edodes mushroom (shiitake mushroom) 300 mg (10:1 QCE 3 g) Olea europaea leaf (olive leaf) 200 mg (10:1 QCE 2 g). Naturally Derived Non-Medical Ingredients:colloidal anhydrous silica, carnauba wax, chlorophyllin copper complex, microcrystalline cellulose, calcium hydrogen phosphate dihydrate, magnesium stearate and croscarmellose sodium. Tablet coating proprietary ingredient PI 4029.