This product from Ron Teeguarden's Dragon Herbs features an impressive 1350mg per serving, listed as 'Astragalus Root Extract, Powder.' While the exact standardization is not specified, Dragon Herbs is renowned for its high-quality, potent, and traditionally prepared Chinese herbal formulations. This very high dosage aligns with the traditional use of Astragalus as a major 'Qi tonic' for enhancing vitality, immune function, and longevity. The brand's reputation suggests a high degree of efficacy for the listed goals. However, the price per serving at $0.77 is among the highest, positioning it as a premium product. This high cost, coupled with the slightly ambiguous ingredient description (not fully standardized to specific compounds), impacts its overall competitive score compared to alternatives offering clearer potency metrics at lower prices.