Cordyceps sinensis is one of the most valued tonics of Chinese herbalism. In China it is recognized as a premier tonifier for athletes and anyone wanting to support energy and endurance. Planetary Herbals Cordyceps Power CS-4 combines cordyceps standardized extract with other tonifiers from around the world. Lifestyle Recommendations: To support energy and endurance, eat a well-balanced diet, exercise regularly, and get sufficient rest. Other Planetary Herbals products to support strength and vitality include: Full-Spectrum Ginseng Extract, Ginseng Revitalizer, Rehmannia Endurance, Rehmannia Vitalizer, and Eleuthero Fluid Extract.