While there isn't a definitive list of "the 5 ceramides," many skincare products and articles refer to a blend of five ceramides for their beneficial effects on skin. These blends typically include various types of ceramides, each with its own structure and function. Therefore, the specific five ceramides in a product will vary depending on the manufacturer's formulation.
Several sources mention the use of five ceramides in their products, highlighting their role in skin hydration and barrier repair. These products don't typically list the exact five ceramides used, but they imply a mix of different ceramide types.
Here are some commonly found ceramide types frequently included in these blends:
- Ceramide 1 (EOS): Often mentioned as a key component.
- Ceramide 2 (NS): Another frequently cited type in ceramide-based skincare.
- Ceramide 3 (NP): This type contributes to the overall skin barrier function.
- Ceramide 6-II (AP): Plays a role in skin hydration and protection.
- Ceramide 9 (EOP): Another important component for maintaining skin health.
Additionally, products frequently include Phytosphingosine and Sphingosine, which are related lipid molecules that work synergistically with ceramides to support skin barrier function.
It's crucial to understand that the precise composition of a "5 ceramide" blend will depend on the specific product. The marketing emphasis is on the presence of multiple ceramide types rather than a fixed, universally recognized set of five.