Green tea can fight infection, which can help treat acne. 
Green tea's anti-inflammatory properties can help reduce redness, swelling, and irritation. Applying a green tea bag can also soothe minor cuts and sunburn. 
Green tea's caffeine can help minimize blood vessels, which can reduce puffiness around the eyes and face. 
Green tea contains an antioxidant that can protect the skin from UV rays, which can cause DNA damage and increase the risk of skin cancer. 
Green tea's caffeine can help fight free radicals, which can cause premature aging. It can also rejuvenate dying skin cells and maintain skin elasticity. 
Reducing the appearance of acne scars
Green tea can help reduce the appearance of acne scars and other blemishes.
Green tea's antioxidants can help protect the skin from free radicals, which can cause premature aging.