Trade Good

Uncommon

A stick of hard tacky substance. You can pop one into your mouth as a bonus action. While being sucked (for up to 10 minutes), you gain expanded senses and have advantage on Wisdom (Perception) checks, saving throws against Illusion spells, and Intelligence (Investigation) checks to see through illusions, though because of the bad taste inherent to the formulation, continuing to suck on the seeing stick requires concentration, as if concentrating on a spell.
By adding the optional common supplies ingredient, they can be sweetened, granting you advantage on Constitution saving throws made to maintain your concentration against spitting them out; this increases the DC of the recipe by 1.