Alter Age

Alter age (minor) by Iczer

Character can modify his or age by 20 years per level, up or down. So a 30-year-old at first level, could alter his age from 10-50. Penalties for extreme age still apply. Extreme youth penalties also apply. This is mostly good for disguise ability. As the character progresses, he will find his continued youth fading. At 6th level, a 150year old, may seem no younger than 30, but may advance his age to a decrepit 270! To Offset this uselessness, the character may trade 10 years of age for an extra ten years of youth, able to age 10 years, or youthen 30 years per level. The 150Yr old may then age to 210, or down to as young as infancy. This trade may be done at 5th level.
Immortal characters may adjust their apparent age based on the age they are stuck on, and may go through many lifetimes, riding up the age ladder, then inheriting as a much junior self.

Bonuses:

PB +3

Halve penalties for age. Penalties for age are offset by 6 months per level.

Ages 50% slower. Calculate range of aging based on apparent age.