From Pathfinder Lost Omens The Grand Bazaar, which isn't enabled.

Stanching (True)

ITEM 17

Price 12500 gp

Usage etched onto armor

Bulk —

These symbols close bloody wounds. Armor with this rune reduces the DC of the flat check to end persistent bleed damage from 15 to 5 (particularly effective assistance automatically removes persistent bleed damage).

Pathfinder Lost Omens The Grand BazaarOGL