The invention concerns a method for production of lactoferrin comprising at least the steps of : a) disposing of raw material that have not been treated at a temperature greater than 500C, b) submitting this raw material to a treatment in order to obtain a solution of Lactenin (LN) or Milk Basic Protein (MBP), c) submitting this LN or MBP solution to a step of purification on a cation exchange resin equilibrated with an acetate buffer at a pH between 4 and 9 and eluted with different buffer solutions containing different solute concentrations, d) and collecting a fraction containing Lactoferrin having more than 95 % of purity, having no polymers and substantially free of LPS, endotoxins and angiogenin. It also concerns the Lactoferrin obtained having more than 95 % of purity, substantially free of LPS, endotoxins and angiogenin with an iron saturation level comprised between 9% to 15 %.
