Although the role of the microbiota in skin homeostasis is still emerging, there is growing evidence that an intact microbiota supports the skin barrier. The increasing number of research efforts that are trying to shed more light on the human skin-microbiota interaction requires the use of suitable experimental models.

Three-dimensional (3D) skin equivalents have been established as a valuable tool in dermatological research because they contain a fully differentiated epidermal barrier that reflects the morphological and molecular characteristics of normal human epidermis.

In this review, we provide an overview of current 3D skin models and illustrate the potential of 3D skin models to study the human skin-microbiota interplay.

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