Ceramides

What are ceramides?

The outermost layer of the skin works like a wall: skin cells are the bricks, and the lipids between them are the mortar. Around half of these lipids are ceramides, along with cholesterol and free fatty acids. Together they form the skin barrier, which keeps moisture in and irritants, bacteria and pollutants out.

With age, with a tendency to eczema, through harsh cleansing or cold winter air, ceramide levels decline. The skin becomes dry and rough and reacts more sensitively. On the INCI list you will find ceramides as Ceramide NP, Ceramide AP or Ceramide EOP, for example.

How do ceramides work on the skin?

• Strengthening the barrier: Ceramides fill gaps in the lipid layer and make the skin more resilient.
• Retaining moisture: An intact barrier lets less water evaporate – the skin stays supple for longer.
• Preventing irritation: Irritants penetrate less easily, so the skin reddens or itches less quickly.
• Smoothing: Rough, flaky patches become softer and finer.

Ceramides work best together with cholesterol and fatty acids – which is why many barrier creams combine all three.

Which skin types are ceramides suitable for?

Ceramides suit every skin type, especially:

• dry skin that feels tight and flaky – see Dryness & dehydration
• sensitive skin with a weakened barrier – see Strengthen the skin barrier
• mature skin, which produces fewer of its own lipids
• blemish-prone skin that has been dried out by acne treatments – light textures won’t clog pores

How to use ceramides

Ceramides work where they stay on the skin – mainly in creams, lotions and balms:

1. Cleanse gently, for example with a low-pH cleanser.
2. Apply a hydrating toner and serum (with hyaluronic acid, for example).
3. Finish with a ceramide cream, and in the morning also with sunscreen.

You can use ceramides morning and evening. You’ll often feel first improvements in dryness after a few days; a truly stable barrier takes about two to four weeks.

What can you combine ceramides with?

• Hyaluronic acid – binds moisture, ceramides lock it in
• Niacinamide – stimulates the skin’s own ceramide production
• Panthenol and Centella Asiatica for extra soothing
• Retinol and acids – a ceramide cream afterwards balances out dryness

Ceramides in Korean skincare

Barrier care is one of the biggest K-beauty trends of recent years. Well-known examples include AESTURA’s Atobarrier line, Biodance’s Hydro Cera-nol masks or ceramide creams from ILLIYOON and Dr. Althea. Many of these products use a skin-identical lipid blend or ceramides in tiny capsules. Our Korean ceramide skincare collection has more than 300 products.

What does the research say?

The importance of ceramides for the skin barrier is very well documented. Studies show that dry and eczema-prone skin contains significantly fewer ceramides and loses more water. Skincare with skin-identical lipids can measurably reduce moisture loss and restore the barrier faster. Ceramides don’t deliver spectacular overnight results, but they are one of the most reliable foundations of any routine.