Oligonol is a patented, low-molecular-weight polyphenol derived from lychee fruit (85%) and green tea (15%) with high bioavailability and addresses metabolic syndrome via anti-inflammatory effect. Oligonol has been clinically shown to reduce fatigue and improve endurance. When more blood is flowing to the muscle, more oxygen is delivered. In the meantime, more waste is being removed from the muscle. This combination prevents fatigue. In one clinical study conducted in a total of 47 young athletes, half the participants took Oligonol, and the other half took regular lychee extract. At the end of the trial, not only did the Oligonol group report feeling improvements in recovery from fatigue, mental clarity, quality of sleep, eye fatigue, and stiff shoulder compared with the regular lychee group, but they also had lower urine levels of 8-OHdG, which is a marker for physical and mental fatigue (Ohno H., et al., 2008).
Oligonol is made from lychee fruit and green tea, both of which have a long history of human consumption. Oligonol has been accepted by the FDA as GRAS and it is Kosher and Halal-certified. Multiple studies on humans and animals have confirmed its safety.