Many films require the characters to age during the story, or tell the story in flashback from an older perspective. Less often an actor or actress undertakes the role of a character considerably older than themselves. Particularly for women there has been a tendency for the aging to be handled, shall we say, delicately: the studio didn’t want to portray a star with wrinkles or the star herself objected. But an increasing number of makeups have gone much further than the gray wig. Sometimes TV mini-series such as Roots have done better than many films.
There are so many of these makeups that I have had to sub-divide the section by the date of the movie. I’ve shown black and asian aging separately because of the different facial characteristics. I also given separate sub-sections to Star Trek (premature aging seems to be an occupational hazard for a series regular) and to soaps and comedies (often using a stylised, if not caricatured, look).
The flip-side of old-age makeup is age reversal. Sometimes this occurs in fantasy movies but perhaps its most common use is in the biopic, where an actress in her thirties might play a character from teenage through to old-age.
You will also find many examples of aging makeup in the creating a likeness section taken from various biopics.