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

Stanching (Greater)

ITEM 9

Price 600 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 10 (5 with particularly effective assistance).

Pathfinder Lost Omens The Grand BazaarOGL