This spell functions like lesser restoration, except that it also dispels temporary negative levels or one permanent negative level. If this spell is used to dispel a permanent negative level, it has a material component of diamond dust worth 1,000 gp. This spell cannot be used to dispel more than one permanent negative level possessed by a target in a 1-week period.
Restoration cures all temporary ability damage, and it restores all points permanently drained from a single ability score (your choice if more than one is drained). It also eliminates any fatigue or exhaustion suffered by the target.