Astragalus 500 mg Standardized extract. Food supplement. The concentrated extract of Astragale VITALL+ guarantees optimal purity and a concentration of active ingredients 5 times higher than that of vegetable powder. Astragalus membraneceus extract standardized to 20% polysaccharides. This adaptogenic plant is native to Asia, where it is traditionally used to boost immune functions. Today most research focuses on Astragalus and its concentration of immunostimulatory polysaccharides. This plant is a general tonic, which increases vitality and strength and helps improve the respiratory tract. One of the main active ingredients of Astragalus is a precursor of the telomerase enzyme. Made in France.