|This is an overview article, focusing on background information and cross-game comparisons.|
Blood packs are simply packs of blood that were originally used for blood transfusions before the War. Now, they are found scattered about old medical facilities and in first aid kits.
Blood packs are large packs of dark red blood that can be found around the wasteland. They are found more frequently in Fallout 3 and can be made more useful through the Hematophage perk. Otherwise, blood packs only heal 1 HP when consumed. In Fallout 4, a blood pack heals 50 HP when consumed.
Glowing blood pack
Glowing blood packs are large packs of a green fluid that can be found across the Island and can be crafted at a chemistry station. Unlike blood packs, glowing blood packs give +75 Radiation Resistance for 10 minutes.