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LF6.3
Lactoferrin Research
Mostly mechanism / observational
70 peer-reviewed studies
What the evidence says
Mostly mechanism / observational
Most Lactoferrin studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality meta-analyses and randomised trials published 2001–2026 with a typical study size of 50 participants.
Based on 69 studies · 15 meta-analyses · 44 RCTs · 402 total participants
Confidence
High confidence
By outcome
Immune supportReduced frequency and duration of respiratory and GI infections · 4–8 weeks
Mostly mechanism / observational21 studies
Women's healthReduced iron-deficiency anemia in pregnancy with fewer GI side effects than ferrous sulfate · 4–8 weeks
Mostly mechanism / observational17 studies
Digestive healthImproved gut barrier integrity and reduced intestinal permeability · 4–12 weeks
At the same time, attention should be given to optimizing their application as nutraceuticals or functional dairy ingredients.
Lesgards JF · Nutrients (2026)
Despite encouraging in vitro and in vivo evidence, clinical validation remains limited, and the antiviral and immunomodulatory effects of WPs still require deeper mechanistic clarification.
Future research should focus on identifying molecular targets, as well as characterizing the pharmacokinetics and safety profiles of WPs and WP peptides across diverse clinical settings.
At the same time, attention should be given to optimizing their application as nutraceuticals or functional dairy ingredients.
By addressing both established and underexplored applications, this review provides a translational framework for clinical development and provides a comprehensive rationale behind leveraging lactoferrin for hair and skin epithelial health.
Kaplan N et al. · International journal of molecular sciences (2026)
We link mechanistic insights with clinical and preclinical evidence and uniquely map molecular functions to dermatologic and trichologic outcomes.
In summary, we propose lactoferrin as not just an anti-inflammatory molecule, but also as a microenvironment stabilizer, and particularly relevant for hair and skin support as an alternative to pharmacological interventions.
By addressing both established and underexplored applications, this review provides a translational framework for clinical development and provides a comprehensive rationale behind leveraging lactoferrin for hair and skin epithelial health.
This narrative review offers updated and comprehensive insights into the available literature on lactoferrin biology, biological properties, and clinical utility.
Rizzi M, Manzoni P, Germano C, Quevedo MF, Sainaghi PP. · Nutrients (2025)
Thanks to these biological properties, lactoferrin has widely been studied as a therapeutic agent in gastroenteric diseases, neonatal sepsis and necrotizing enterocolitis, lung diseases, and COVID-19, showing very heterogeneous results based on the disease considered and the population studied.
Since lactoferrin is one of the main components of neutrophils' secondary granules, it has also been investigated as a potential disease-monitoring biomarker, especially for diseases in which inflammation is a key component.
This narrative review offers updated and comprehensive insights into the available literature on lactoferrin biology, biological properties, and clinical utility.