Ingredients like taurine, guarana and inositol are natural substances.

像牛磺酸 、 瓜拉纳和肌醇这样的原料是自然物质.

Guarana a central nervous system stimulant comes from south america and is used widely for its stimulating effect to increase energy.

南美州的瓜拿纳有刺激中央神经系统的作用，可增强力量。