Most oils in The Witcher 2: Assassins of Kings last only 5 minutes. The only exception is Falka's Blood, which lasts but 3 minutes. The Witcher 2: Assassins of Kings, oils are lumped in with other blade enhancements.
| Image | Name | Ingredients | Effect | Transmutation 1 | Transmutation 2 |
|---|---|---|---|---|---|
 |
Necrophage oil |    
|
 +20% to necrophages
|
+25% to necrophages
|
+30% to necrophages
|
 |
Hanged Man's Venom | 
|
+20% to humanoids
|
+25% to humanoids
|
+30% to humanoids
|
 |
Specter oil |  
|
+20% to wraiths
|
+25% to wraiths
|
+30% to wraiths
|
 |
Brown Oil | 
|
 +30%
|
+40%
|
+50%
|
 |
Falka's Blood |
|
+10%
|
+15%
|
+20%
|
 |
Whirl |
|
+5%
|
+10%
|
+15%
|
 |
Arachnid oil |
|
 +30%
|
+40%
|
+50%
|
 |
Insectoid oil |
|
+20% to insectoids
|
+25% to insectoids
|
+30% to insectoids
|
Bugs[]
- As of v1.2, oils do not work on silver swords. Issue was resolved in v1.3 and does not affect EE at all.