Ceramide NP

Ceramide NP (commonly known as **Ceramide 3**) is a naturally occurring lipid molecule classified within the ceramides—a family of sphingolipids that are major structural components of the stratum corneum in human skin. Chemically, it consists of a phytosphingosine backbone acylated with a saturated fatty acid such as stearic acid. Its primary biological function is to reinforce the natural lipid barrier of the epidermis by forming stable bilayers that trap water and prevent transepidermal water loss. This makes it essential for maintaining healthy skin hydration and protecting against environmental stressors. While ceramides broadly participate in cell signaling related to apoptosis and inflammation, **Ceramide NP/Ceramide 3** itself is not considered a direct therapeutic target like an enzyme or receptor but rather serves as an active ingredient in topical formulations for restoring or enhancing skin barrier function[1][2][5]. There are no known drugs targeting this molecule directly; instead, it is used itself as an ingredient due to its biomimetic properties. **Note:** "Ceramide 3" refers to a specific molecular species within the broader class "ceramides." It is not considered a classical drug target such as receptors or enzymes but rather functions structurally and physiologically within tissues—primarily the epidermis—and has utility mainly in dermatological products rather than pharmacological intervention targets[2][5].

Other names

Ceramide 3Ceramide IIICeramide IIIbCytomide IIIaCytomide IIIbN-(9Z-octadecenoyl)-4-hydroxysphinganineN-(9Z-octadecenoyl)phytosphingosineN-octadecanoylphytosphingosineN-oleoylphytosphingosine[2][5][8][10]