MATERIALS
Dictionary of Torriden
Ceramides are naturally found in the skin’s outermost layer, the stratum corneum, which is made up of skin cells and intercellular lipids (ceramides, cholesterol, fatty acids). Making up about 50% of these lipids, ceramides play an important role in helping the skin retain moisture.
If skin cells are like bricks, ceramides act as the “cement” that binds them together, showing why sufficient levels are important for a strong and resilient barrier.
Ceramides are classified into types such as AP, AS, NP, NS, and EOP, and the skin barrier is formed from a mix of these.
Their primary role is to help reinforce the skin’s natural barrier, support skin resilience against external stressors, and prevent moisture from escaping by keeping cells tightly connected.
Because ceramide levels naturally decline with age or when the skin is stressed or weakened, replenishing them helps maintain hydration, reduce dryness, and support the skin’s overall condition.
FAQ
The main function of ceramides is to help reinforce the skin’s natural barrier and support skin resilience against external factors.
Since a stable level of ceramides is important for maintaining healthy skin, they can be used on all skin types — including dry, sensitive, or easily irritated skin.
However, as individual skin reactions may vary, it is recommended to do a patch test before use.
In addition to ceramides, cholesterol and fatty acids are also major components of the skin’s outer layer.
Using products that combine ceramides with cholesterol and fatty acids helps support the skin’s natural barrier and improve moisture retention.
Panthenol can also be beneficial when used together, supporting long-lasting skin comfort and hydration.
*This description is provided to help understanding of the general properties of the ingredient.
References: Rogers et al., 1996; Ceramide and Skin Barrier Function, 2005; J Invest Dermatol, 2012; Clinics in Dermatology, 2019
