Unguent of Revivification

The preservation of dead flesh is important to the undead-friendly Osiris.

Source Pathfinder Campaign Setting

The desert elite commonly use this alchemical ointment as a cheaper alternative to gentle repose to give their undead flesh the blush of life. A single dose staves off the decomposition of dead flesh for 1d6 days. It cannot reverse decay that is already present and has no effect on the time limit for raising creatures from the dead.