The Sulphurskin Potion is a craftable Pre-Hardmode buff potion. Upon consumption it grants the Sulphurskin buff, which reduces the damage over time dealt by the water in the Sulphurous Sea.
- The Sulphurskin's effect of reducing severity of the water in the Sulphurous Sea stacks with the Sulphurous armor's set bonus in the following manner:
- While the buff is active without the set bonus, the amount of minimum life regen lost is 2 instead of 8, and further reduced by 1 every 5.83 seconds instead of 4.17 seconds.
- With both the armor and the Sulphurskin buff, the amount of minimum life regen lost is 1, and further reduced by 1 every 8.33 seconds.
- Both reduce the amount of life regen lost from the Sulphuric Poisoning debuff by 2 and can stack with each other.