These permanent aggressors and pollutants directly attack the skin's hydrolipidic film, intercellular cement and cellular membrane. Your skin employs different defence systems when faced with these external and internal aggressors that oxidise it. And when these systems are overwhelmed, it sometimes struggles to repair itself. Pollution increases the inflammation and irritation that can affect your skin. This is when small changes in your skin can start to appear and become noticeable. Your face looks lifeless, like it's been suffocated. Its uneven complexion draws attention to any redness, dilated pores and small imperfections. In short, your skin starts to look dull and older.