- 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)
Powerful medicine that cleanses the body. Made from two ingredients from a D-Series test subject.
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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:
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: