- "It's useful for keeping the bugs away."
Bug juice is a type of body applicant that discourages insects, arachnids and annelids.
Naked Snake/Soviet Union
Naked Snake procured bug juice during the Virtuous Mission and Operation Snake Eater. It was applied to the skin and camouflage to keep away leeches, hornets and spiders for a brief period of time. The bug juice worked well against bugs on land but it wore off quickly in water, so its usefulness against leeches was marginal at best. Its presence in Tselinoyarsk implies that it was used by the Soviet personnel within the region as well.
Behind the scenes
The Bug Juice item appears exclusively in Metal Gear Solid 3: Snake Eater. It weighs 0.7 kg when placed in the player character's inventory.