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. But its properties go well beyond this simple chelating action.

In cosmetics and nutraceuticals, lactoferrin is today recognised for its triple anti-acne role: antibacterial, anti-inflammatory and sebum regulator. It is one of the actives at the heart of Zactigis formulas.

What science says about lactoferrin and acne

Several clinical studies have evaluated lactoferrin's effectiveness 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 showed a decrease in papules and pustules, as well as a reduction in sebum production measured by sebumetry.

Other work showed that lactoferrin inhibits the growth of Cutibacterium acnes (formerly Propionibacterium acnes), the bacterium involved in triggering inflammatory breakouts. This mechanism is dual: by depriving the bacterium of iron, and by directly disrupting its cell membrane.

Anti-inflammatory action: an underestimated lever

Acne is not just a bacterial matter. It is above all an inflammatory process. Lactoferrin modulates the local immune response by reducing the production of pro-inflammatory cytokines like interleukin-6 (IL-6) and TNF-alpha. Concretely, this translates to a reduction in redness, heat and discomfort linked to active lesions. This tolerance also explains why lactoferrin is particularly suitable for sensitive skin.

Lactoferrin and sebum regulation: the hormonal link

Hyperseborrhea — excessive sebum production — is one of acne's main triggering factors. It is often amplified by hormonal fluctuations, notably androgens. Lactoferrin intervenes here by regulating sebocyte activity, contributing to a less comedogenic skin microenvironment.

How to integrate lactoferrin in your anti-acne routine

Lactoferrin can be used in two complementary ways: topically, in cosmetic formulas targeting imperfections, and orally via dietary supplements. At Zactigis, lactoferrin is present in our key formulas — notably in SkinCTRL — for complete action. Its exceptional tolerance, combined with a multifactorial mode of action, makes it an active of choice for combination to oily skin prone to imperfections.