Not all ginseng supplements are alike. Only Ginsana supplements contain G115, a unique standardized extract that has been shown to enhance physical energy by enhancing the body's utilization of oxygen. While many other ginseng supplements may not contain the proven level of active constituents, each Ginsana soft gelatin capsule contains the precise amount of energy-enhancing ingredients, no sugar, no caffeine, and no artificial stimulants. This proven quality has helped make Ginsana one of the best-selling supplement brands in the world. (These statements have not been evaluated by the Food & Drug Association. This product is not intended to diagnose, treat, cure, or prevent any disease.)