Ceramide 1

Ceramide 1

AKA “Ceramide 1 [INCI], Stearoyloxyheptacosanoyl-4-hydroxysphinganine, Stearoyloxyheptacosanoyl-C18-phytosphingosine, 4-Octadecanetriol, 2-stearoyloxyheptacosamide, CERAMIDE 1 (RETIRED)”

Skin Conditioning

Ingredient Facts

Ceramide 1

AKA: Ceramide 1 [INCI], Stearoyloxyheptacosanoyl-4-hydroxysphinganine, Stearoyloxyheptacosanoyl-C18-phytosphingosine, 4-Octadecanetriol, 2-stearoyloxyheptacosamide, CERAMIDE 1 (RETIRED)

Skin Conditioning · Hair Conditioning · EWG: 4

Synthetic

Skin Conditioner

Hair Care

Ceramide

Not Clean

Ceramide 1 (Retired) is the N-acylated phytosphingosine having the erythro structure that conforms generally to the formula, where n has a value ranging from 10 to 20.The INCI Name, Ceramide 1, originally developed in 1997, was designated with a retired status in 2014. For an interim period of time, trade name assignments formerly published with the INCI Name Ceramide 1 will be retained in the retired monograph, and also published with the new name assignment, Ceramide EOP.

Formula

C63H125NO6

Mol. Weight

992.7

CAS #

100403-19-8

Form

Liquid

See origin →

Functions

Hair Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Skin Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Strengthens skin barrier

Locks in moisture

Prevents moisture loss

Traditional Use

Identified in the 1980s as a key component of skin's natural lipid barrier. Synthetic ceramides were developed to replicate skin's own ceramide structure and restore barrier function in modern skincare.