- The first must be used to permanently defeat Jack when he attacks the Boat House.
- The second can be used on either Mia or Zoe, the choice of which decides which ending you receive when you complete the game.
Serum (Resident Evil 7 Biohazard)
Powerful medicine that cleanses the body. Made from two ingredients from a D-Series test subject.
This serum contains the necessary antibodies to fight the infection that Eveline spreads. You receive two vials from Zoe, which are used in the following places:
| Category | Item |
|---|
Location
Storage Entry - Boat House (Storage) 2F
EasyView locationShow on map2 × Serum - When you've untied Zoe and given her the D-Series Arm and the D-Series Head, she will create the serum and hand it to you.Storage Entry - Boat House (Storage) 2F
NormalView locationShow on map2 × Serum - When you've untied Zoe and given her the D-Series Arm and the D-Series Head, she will create the serum and hand it to you.Storage Entry - Boat House (Storage) 2F
MadhouseView locationShow on map2 × Serum - When you've untied Zoe and given her the D-Series Arm and the D-Series Head, she will create the serum and hand it to you.There are no locations to show for this mode. The following modes are applicable: