Lactoferrin

Lactoferrin is an iron-binding glycoprotein naturally present in many body fluids, including tears, saliva, and the secretions of immune cells called neutrophils. In skincare formulations, it functions as a skin and hair conditioning agent, working to support the skin's natural repair processes.The ingredient operates by modulating how the skin responds to damage and microbial challenge, rather than acting as a direct antimicrobial agent alone. This makes it particularly relevant for formulations targeting compromised or healing skin.

Lactoferrin influences skin healing by affecting several cell types involved in repair: keratinocytes (skin cells), fibroblasts (which produce collagen), and endothelial cells (which form new blood vessels). It enhances the initial inflammatory phase of wound healing, which is necessary for cleaning and initiating repair, whilst simultaneously dampening prolonged inflammation that can impede healing.The ingredient also interacts with the skin's immune system, helping regulate the response to bacterial presence. This dual action—promoting healing whilst managing inflammation—appears particul…

Lactoferrin is typically incorporated into serums, moisturisers, and barrier-repair products. It tends to work best as part of a broader skincare routine supporting barrier function and healing rather than as a standalone active. If using a product containing lactoferrin for a specific skin concern (such as a healing wound or problematic barrier), consistency of use is more important than frequency, and results may take 2–4 weeks to become apparent.

Lactoferrin is generally well-tolerated across skin types. As a naturally occurring protein, allergic reactions are possible but uncommon. Those with dairy allergies should verify the source, though lactoferrin used in cosmetics is often derived from non-dairy sources.