Well here is your answer....
Toning is important for both men and women as it is the protective step after gentle, but thorough cleansing of the skin as it keeps pores clean and skin healthy. For men, the need for toners may be significantly more than women since they have about fifteen percent oilier skin and considerably larger pores than women.
Toners are especially useful in keeping away environmental debris and pollutants that can be detrimental to your skin's health and this simple act of daily cleansing and toning helps keep the skin clear and firm.
As your skin ages, it loses its elasticity and this lack of suppleness makes you appear older than your years; here is where the prudent use of a good toner comes in.
Toners help remove all traces of oil, dirt and makeup and revitalize your face by closing the pores when patted on gently with cotton pads. Toning helps refresh and improve blood circulation to add that lost glow of youth to your skin.
Also a good skin toner will also help prevent winkles. If that's not reason enough I don't know what it ;)