Lactoferrin: A Protein with Multiple Powers
Lactoferrin is a glycoprotein naturally present in breast milk, saliva, tears, and nasal secretions. Its physiological role is to act as a first immune barrier: it captures free iron to deprive pathogenic bacteria of the nutrient they need to proliferate. However, its properties extend far beyond this simple chelating action.
In cosmetics and nutraceuticals, lactoferrin is now recognized for its triple anti-acne role: antibacterial, anti-inflammatory, and sebum-regulating. It is one of the key active ingredients in Zactigis formulations.
What Science Says About Lactoferrin and Acne
Several clinical studies have evaluated the effectiveness of lactoferrin in acne management, with consistent and promising results. A study published in the Journal of the American College of Nutrition showed that oral lactoferrin supplementation significantly reduced the number of inflammatory acne lesions after 12 weeks. Participants experienced a decrease in papules and pustules, as well as a reduction in sebum production measured by sebumetry.
Other work has shown that lactoferrin inhibits the growth of Cutibacterium acnes (formerly Propionibacterium acnes), the bacteria involved in triggering inflammatory flare-ups. This mechanism is twofold: by depriving the bacteria of iron, and by directly disrupting its cell membrane.
Anti-Inflammatory Action: An Underestimated Lever
Acne is not just about bacteria. It is primarily an inflammatory process. Lactoferrin modulates the local immune response by reducing the production of pro-inflammatory cytokines such as interleukin-6 (IL-6) and TNF-alpha. Concretely, this translates into a reduction in redness, heat, and discomfort associated with active acne lesions. This tolerance also explains why lactoferrin is particularly suitable for sensitive skin, often irritated by conventional anti-acne active ingredients.
Lactoferrin and Sebum Regulation: The Link with Hormones
Hyperseborrhea – excessive sebum production – is one of the main triggers of acne. It is often amplified by hormonal fluctuations, particularly androgens. Lactoferrin intervenes here by regulating the activity of sebocytes (the cells that produce sebum), contributing to a skin microenvironment less conducive to comedone formation.
How to Incorporate Lactoferrin into Your Anti-Acne Routine
Lactoferrin can be used in two complementary ways: topically, integrated into cosmetic formulas targeting imperfections, and orally via food supplements. At Zactigis, lactoferrin is present in our key formulas – particularly in SkinCTRL – for a complete action. Its exceptional tolerance, combined with a multifactorial mode of action, makes it a choice active ingredient for combination to oily skin prone to imperfections.
