Start learning! (% complete)

quiz close icon

module menu icon About the skin


The skin is the largest organ in the body; it acts as a protective layer that both retains moisture and acts as a barrier against bacteria, environmental pollutants and allergens.1

The skin has its own ecosystem, called the microbiome. It is made up of millions of bacteria that work in balance to support the skin's health. Disruption to this balance can lead to a variety of skin conditions, including eczema.1

Ceramides are one of the critical lipid components of the outer layer of skin, or epidermis; they hold the skin cells together and help the skin maintain its protective function.

Dry skin can occur as a result of water loss, reduced lipids in the skin, or both. Dry skin conditions cover a whole spectrum ranging from dry, itchy skin to eczema.

When dry skin persists, the skin barrier becomes compromised and cracks. This allows bacteria, environmental pollutants and allergens to enter the skin, leading to inflammation.1