Green Tea is a natural plant extract, rich in polyphenols, also known as catechins. Green Tea is particularly high in the catechin Epigallocatechin-3-gallate (EGCG), which is a powerful antioxidant, meaning it can neutralise free radicals to prevent them causing damage within the skin. It is one of the most well researched natural plant extracts used in skincare, with studies also showing it to have an anti-inflammatory and anti-microbial effect.