Keep the Handsome AND the Mature
Before you begin, remember that it is easy to get carried away with editing out elderly imperfections. You want the Skin to be smoother, but not completely devoid of Texture. The goal is not to turn a 60 year old man into a 20 year old! Experiment with lessing the intensity of layers, and playing around with how much you edit out.
1. On a copy of the Background layer (Cmd+J), go to Image -> Adjustments -> Shadows and Highlights. This dialogue is very helpful for editing older subjects, because you can control the Shadows for a less harsh Face.
2. To begin lessening the appearance of things like wrinkles and pores, duplicate the Background layer again. Use the Spot Healing Brush Tool on this layer to paint over unwanted lines. Be sure that “Content Aware” is selected at the top of the Screen. Once you’re finished, don’t hesitate to lower the Opacity of this layer. There’s a good chance your subject will look too plastic if you remove every single imperfection from the Face.
3. As time goes on, we tend to lose some Color and life in the look of our Skin. To add some color back into the image, create a Hue/Saturation Adjustment Layer and crank up the Saturation. Put a Layer Mask on this layer, and fill it with black to Invert it. Now, with a white Brush, you can paint some Color into the eyes and lips.