Penetrating Boost Potion
Penetrating Boost Potion is a potion (consumable) in GMS v271. Sells to NPCs for 1 mesos.
Alchemy Masters and Renowned Masters can make this potion, which increases your Ignore DEF by 10% for 40 minutes.
Normally, only 1 potion can be used at a time, but Alchemists can use 2 if they are of different types.
However, even Alchemists cannot use 2 of the same potions at once, and Boss Rush Boost Potions, Great Hero Boost Potions, and Great Blessing Potions cannot be used together.