It combines 2 kinds of complexes: CL302 Complex and Interrupter Complex. The former (CL302 Complex) combines dimethoxytolyl propylresorcinol, ascorbyl glucoside, salicylic acid, acetyl glucosamine & yeast extract while the latter (Interrupter Complex) combines green tea leaf extract & rice bran extract. It’s unscented, has an emulsion-like quality and is quite runny. It leaves a velvety smooth feeling on the skin on application and a little tacky feeling. In 2 weeks, I saw a slight reduction of redness on the sides of my nose & cheeks, and a more evened-out skin tone. I also think this gave my complexion a rosy-white glow.