Allergy Research Group Laktoferrin with Colostrum is a dietary supplement designed to support the immune function. Lactoferrin is a natural form of protein that supports lymphocyte (white blood cell) function and is involved in the metabolism of iron. Iron supports red blood cells transport oxygen to cells in the body. Laktoferrin with Colostrum has a bovine colostrum base which is the milk mothers give immediately after giving birth which is rich in nutrients. It provides immunoglobins IgG, IgA and IgM that are antibodies to support general health. Lysozyme is included to attack cell walls of some bacteria.