Green tea leaf extract (Camellia sinensis L.)

Green tea leaf extract is obtained from the unfermented leaves of Camellia sinensis L., a plant native to Southeast Asia that has been cultivated for millennia. The extraction process concentrates the active compounds naturally present in fresh leaves, particularly catechins — including epigallocatechin gallate (EGCG) — polyphenols, and caffeine. Catechins are flavonoids recognised for their marked antioxidant properties: they contribute to neutralising free radicals and reducing cellular oxidative stress. The caffeine found in the extract contributes to improved concentration and reduced fatigue, while the combination of both compounds is studied for its role in normal energy metabolism. Supplementation in the form of a standardised extract provides a precise and reproducible dose of active ingredients, independent of the variability inherent in dried leaves or infusions. It is particularly suited to those wishing to benefit from the properties of green tea in a concentrated and controlled way, without increasing their daily intake of caffeinated beverages.