Ceramide Np
Review the scientific evidence and bio-availability of Ceramide Np, followed by our curated database of formulations.
Ceramide Np (N-stearoyl phytosphingosine) is a major lipid component naturally found within the human stratum corneum, historically categorized as Ceramide 3. It consists of a phytosphingosine backbone N-acylated with a non-hydroxy fatty acid (stearic acid). As a primary constituent of the skin’s extracellular lipid matrix, Ceramide NP is essential for maintaining the “brick and mortar” structure of the epidermis, ensuring both structural integrity and the regulation of water flux.
Clinical Benefits & Mechanism of Action
Ceramide NP functions primarily through its integration into the lipid bilayer of the skin, where it facilitates the organization of lamellar structures. Its physiological mechanisms include:
- Barrier Support: It fills the spaces between corneocytes, supporting the maintenance and integrity of the lipid barrier when challenged by aging, environmental stressors, or harsh surfactants.
- Regulation of Transepidermal Water Loss (TEWL): By helping to maintain a functional semi-permeable membrane, it retains moisture within the cutaneous layers, supporting optimal skin hydration, suppleness, and elasticity.
- Soothing Cutaneous Responses: By reinforcing the physical outer barrier, Ceramide NP limits the penetration of exogenous irritants and environmental stressors that can interact with sensory nerve endings, thereby helping to manage the characteristics of sensitive or easily irritated skin.
- Microbiome Support: Recent clinical data suggests that Ceramide NP helps maintain a healthy skin pH and environment, which promotes a favorable habitat for a diverse and balanced skin microbiome.
Scientific Sources & Clinical Trials
- Monocentric, Vehicle-Controlled, Double-Blind Study to Assess the Short- and Long-Term Effects of a Ceramide NP C15-Containing Emollient on the Skin Microbiome and the Skin Barrier Function in Sensitive Skin.
- The Effectiveness and Safety of a Skin Care Product With Centella asiatica Leaf Extract, Ceramide NP, and Panthenol in Subjects With Sensitive Skin: A Prospective, Observational Study.
- Efficacy and safety of the Exfoliate-Dissolve-Repair skin care approach in the treatment of keratosis pilaris: a randomized controlled clinical trial study protocol.
