Mysterious serum

The mysterious serum is a semi-unique consumable in Fallout 4.

Characteristics
As the name suggests, this serum is of unknown origin and composition, and boasts some very powerful effects. In addition to providing an extra 50 damage resistance and 5 Strength when injected, the serum also actively removes radiation at a rate of 10 rads per second, for one hour. This effectively makes it a prophylactic RadAway; given that there are few sources that give off more than 10 rads per second, the serum actively flushes the radiation out as it is absorbed.

Locations

 * Only one mysterious serum can be received at a time from Lorenzo Cabot, should he be kept alive at the conclusion of The Secret of Cabot House.