The Camellia sinensis plant conveys an extent of white, green, or dull teas. Tea is among the most notable beverages on earth, behind water similar to joy or clinical benefits. Green tea is more imperative than dull tea to the extent that reasonability. Polyphenols are the imperative pieces of importance since they are major for green tea's malignant growth avoidance specialist or other clinical benefits. Green tea's most abundant polyphenols are flavonoids. The four fundamental flavonoids contained in green tea are epicatechin (EC), epicatechin gallate (ECG), epigallocatechin, and epigallocatechin gallate (EGG). Epigallocatechin gallate is the super powerful part. The procedures used to make dull tea are seen to lessen monomeric catechin levels by and large more than those used to make various teas. There is a lot of verification that green tea enjoys health advantages for a variety of difficulties, including threatening development, liver ailment, coronary ailment, and so on Green tea might even guide in the treatment of diabetes, combustible inside disease, work out, skin conditions, going bare, shedding pounds, or iron over-trouble, among something else. This article will go through the critical clinical benefits of green tea, with an accentuation on catechins.