Matcha is a powdered form of Green Tea (Camelia sinensis). This tea is used in Japanese tea ceremonies and also used by those interested in obtaining alert and calm minds. Normally, the green tea powder comes in a very fine grade for tea ceremonies and in a culinary grade for general use. Both forms conatin the catechin EGCG.
Researchers have indicated that green tea has “anti-carcinogenic and anti-mutagenic activities.” There is a strong concentration of the antioxidant, Epigallocatechin gallate (EGCG), in green tea. EGCG is the most abundant catechin in green tea, which has been linked with many health benefits.
Results reported in the Journal of Chromatography A [J Chromatogr A. 2003 Sep 5;1011(1-2):173-80] indicate that the concentration of epigallocatechin gallate (EGCG) available from drinking matcha is 137 times greater than the amount of EGCG available from China Green Tips green tea, and at least three times higher than the largest literature value for other green teas.