Lactoferrin

Lactoferrin is an iron-binding glycoprotein naturally found in mammalian milk, tears, and saliva, now commonly produced through fermentation technology for cosmetic use. This multifunctional protein is highly valued in skincare for its broad-spectrum antimicrobial properties against bacteria, fungi, and viruses, while simultaneously supporting skin barrier function and providing anti-inflammatory benefits. Its cationic nature at physiological pH allows it to interact effectively with negatively charged skin surfaces, making it particularly effective in acne treatments, sensitive skin formulations, and products targeting skin microbiome balance.