Ceramide NS (0.15 Ppb)
Ceramide NS, formerly known under the INCI name Ceramide 2, is an N-acylated sphingolipid consisting of sphingosine having the D-erythro structure linked to a normal saturated or unsaturated fatty acid. Unlike the broader Ceramide 2 definition, Ceramide NS is limited specifically to sphingosine-based ceramides, excluding dihydrosphingosine (sphinganine) variants. It is classified as a skin-identical ingredient and carries CAS number 100403-19-8. Its official CosIng functions are listed as hair conditioning and skin conditioning.
As a skin-identical ceramide, Ceramide NS supports and reinforces the skin's natural lipid barrier. It is used in formulations for its skin conditioning properties, helping to maintain moisture and structural integrity of the stratum corneum.
