Shrinking PotionItem 4+
ConsumableMagicalPotionTransmutation
Source Core Rulebook pg. 564 2.0
Onset 1 minute; Usage held in 1 hand; Bulk L
Activate 
Interact
This fungus-flavored potion conveys the effects of the shrink spell to make you and all your gear smaller. After the onset, you remain small for 10 minutes.

Shrinking Potion
Item 4Source Core Rulebook pg. 564 2.0Price 15 gp
Shrinking Potion (Greater)Item 8
Source Core Rulebook pg. 564 2.0Price 90 gp
This potion has no onset, lasts for 1 hour, and grants the effects of a 4th-level
shrink spell. In addition, you gain a +2 item bonus to Stealth checks while shrunken.