Life Extension Lactoferrin Caps 60 Vegetarian CapsulesBrand: Life Extension Features: PROMOTES A HEALTHY IMMUNE RESPONSE Lactoferrin is a nutrient found in mothers milk, so its one of the first you ever received. This is a good thing, because lactoferrin helps promote both innate and adaptive healthy immune responses. NATURAL KILLER CELL ACTIVITY Your immune systems defense arsenal includes Natural Killer cells, or NK cells for short. These cells are your immune systems first responders: they get to an