Eleuthero is better known as Siberian ginseng (although not related) and is considered one of the best adaptogenic herbs known to man. Like all true adaptogens eleuthero has a broad range of uses and benefits. Great for sports people and parents needing extra energy, great for students and executives desiring support for cognitive performance and preventing mental fatigue. A great addition to chaga as a coffee replacement. Benefits: Anti-fatigue. Pro energy (qi tonic). Pro immunity. Improved respiration. Increased mental alertness & athletic performance. Directions: Always read the instructions before use.