Mongoose
Mongoose is a specialised potion in The Witcher 2 made for one job: protecting Geralt from the kayran’s poisonous mucus. Its huge Resistance to Poisoning value effectively makes him immune to poison while it lasts, so it is meant to be drunk right before the kayran fight.
It adds 25 Toxicity, a lighter load than many combat potions, and has a duration value of 600. Outside that battle it has little use.
How to obtain
It is brewed from Formula: Mongoose using Rebis, Aether and Fulgur.
Keep exploring
Plan a Remastered build: skill trees, mutagens, gear and a shareable build image.
Pick a potion, decoction or bomb and see every ingredient you need.
Answer the key choices and find out which Witcher 3 ending you will get.
Every location, quest and monster in the first region on one map.
The Wolf School's hidden valley: the keep, the Bastion, caves and treasure.
Tick off every school gear diagram and crafted piece, with diagram locations.
Search any monster and see the right oil, Signs and bombs.