title: Effects of Fermented Dairy Products on Skin: A Systematic Review.
abstract: OBJECTIVE
  Fermented dairy products, such as yogurt, have been proposed as a natural source of probiotics to promote intestinal health. Growing evidence shows that modulation of the gastrointestinal tract microbiota can modulate skin disease as well. This systematic review was conducted to examine the evidence for the use of ingested fermented dairy products to modulate skin health and function. We also sought to review the effects of the topical application of dairy products.
  
  
  METHODS
  The PubMed and Embase databases were systematically searched for clinical studies involving humans only that examined the relationship between fermented dairy products and skin health.
  
  
  RESULTS
  A total of 312 articles were found and a total of 4 studies met inclusion criteria. Three studies evaluated the effects of ingestion, while one evaluated the effects of topical application. All studies noted improvement with the use of fermented dairy.
  
  
  CONCLUSIONS
  Overall, there is early and limited evidence that fermented dairy products, used both topically and orally, may provide benefits for skin health. However, existing studies are limited and further studies will be important to better assess efficacy and the mechanisms involved.
authors.affiliation: 1 Drexel University College of Medicine , Philadelphia, PA.
authors.forename: Alexandra R
authors.initials: AR
authors.lastname: Vaughn
authors.affiliation: 2 Department of Dermatology, University of California-Davis , Sacramento, CA.
authors.forename: Raja K
authors.initials: RK
authors.lastname: Sivamani
mesh_terms: D000284:Administration, Oral; D000287:Administration, Topical; D043302:Cultured Milk Products; D003879:Dermatologic Agents; D000069196:Gastrointestinal Microbiome; D006801:Humans; D012871:Skin Diseases
chemical_list: D003879:Dermatologic Agents