The anti-inflammatory properties of tea extracts, especially that of green tea has been tested to reduce the duration of radiation-induced skin damage by up to 10 days in patients who received radiation treatment.

In a recent study published in the open access journal BMC Medicine, Frank Pajonk, from the University of California in Los Angeles, USA, and colleagues from the University of Freiburg, Germany also show that in human white blood cells in culture, green tea as having higher anti-inflammatory properties than black tea in reducing the release of pro-inflammatory cytokines, such as IL-1beta, IL-6, IL-8, TNFalpha and PGE2.

However, in mouse white blood cells, both black tea and green tea inhibit one major inflammatory pathway.