Grape Mentats (Fallout 3)

Glamourously Grape Mentats are a chem in Fallout 3.

Characteristics
Notably, Grape Mentats do not increase Intelligence and Perception like their original counterpart. Instead, they only increase Charisma.

Locations
An archives prize voucher, found in the National Archives, can be traded for Grape Mentats, Berry Mentats, or Orange Mentats.