Craft it
You need
Make it at (any of these)
Work: 100,000 · Unlock in the Technology menu at level 61 for 2 Technology points
Medicine that heals wounds over time.
Extremely high quality, it rapidly restores HP before your eyes.
You need
Make it at (any of these)
Work: 100,000 · Unlock in the Technology menu at level 61 for 2 Technology points