Bio Synergy’s Caffeine supplement, is ideal for giving you that energy boost that you need for short or long term, high-intensity efforts. If endurance and power are important to you, then Bio-Synergy Caffeine will do the trick. A tough training regime can put a strain on even the fittest hearts and muscles, leaving them weakened for the next exercise session. Studies have proven even very small amounts of caffeine, if taken orally, increased the energy recovery in stressed leg muscle by 100%. So, swap your espresso for the Bio-Synergy Caffeine boost and get the full benefits.