Selected blends with proven herbal adaptogens used to increase breathing capacity, red blood cells and decrease stress hormone cortisol during endurance activities. Adaptogens such as Rhodiola, ginseng, Eleuthero and others are also known to increase ATP energy levels, anaerobic threshold and reducing pain we are approaching the edge. Especially among professional cyclists and triathletes, testosterone vs. cortisol ratio is crucial for maintaining proper strength and regeneration.