Rate My SPF

Ceramide 4

What Ceramide 4 is & what it does

Ceramide 4, also written as Ceramide EOP, is one of the ceramide lipids that occur naturally in the outer layer of human skin. In moisturizers and sunscreens it is used to help reinforce the skin barrier and reduce moisture loss, supporting a soft and supple feel. Ceramides are commonly paired with cholesterol and fatty acids to mimic the skin's own lipid matrix.

What does Ceramide 4 do in skincare?

Ceramide 4 is a skin-identical lipid that helps reinforce the skin barrier and limit moisture loss. In moisturizers and sunscreens it supports a soft, supple feel and is often combined with cholesterol and fatty acids to mirror the skin's own lipid structure.

Is Ceramide 4 safe?

Ceramide 4 is a lipid related to those found naturally in the skin and is widely used in moisturizing products. It is generally well tolerated, but individual responses differ, so anyone with sensitive skin can patch test first. This is general information and not medical advice.

Is Ceramide 4 natural or synthetic?

The ceramides used in cosmetics, including Ceramide 4, are usually produced synthetically or by fermentation to match the structure of the skin's own ceramides. This lab-made approach gives a consistent, high-purity ingredient.

Sunscreens with Ceramide 4

We rate 9 sunscreens that contain it:

← All ingredients