Double Wood Lactoferrin provides 250 mg of Bioferrin 2000 per serving to support healthy immune function, iron absorption and utilization, beneficial gut bacteria, and ocular surface health.Lactoferrin is an iron-binding glycoprotein naturally found in milk, colostrum, saliva, and tears. It supports immune health through several complementary pathways, including binding free iron, supporting a balanced intestinal environment, and helping regulate normal immune-cell activity.Double Wood uses Bioferrin 2000, a patented bovine lactoferrin ingredient developed by Glanbia Nutritionals. The ingredient is freeze-dried to help preserve the structure and activity of the lactoferrin protein.Because lactoferrin is derived from bovine milk, this product contains milk and is not suitable for people with a milk allergy or those following a vegan diet.Soy-Free, Gluten-Free, Non-GMO