Re: face age and effects by Mike Sevigny on Feb 27, 2014 at 4:15:36 pm
What you're describing are practical effects. Bald cap and makeup will go a long way. If he turns his head too fast or DOF gets in the way you'll quickly find you have a nightmare on your hands in post.
In terms of tutorials, you're looking for face/head tracking tutorial so you can attach adjustment layers and paint to his face and head. I would be thinking track marks. Use an eyeliner pencil to put dots on his face.. but these will have to be painted out. You may actually have to matchmove his head in some cases which really ramps up the workload.
Depending on your skill level this may be out of reach. If I was supervising I would opt for makeup and only be hired for cleanup.
Not an easy task unfortunately..