Ceramides: Why They Are Essential for the Skin Barrier
The skin barrier consists of about 50% ceramides. Together with cholesterol and free fatty acids, they form the "mortar layer" between the skin cells. Without enough ceramides, the barrier becomes permeable - moisture escapes, irritants enter.
The ZO Skin Health Recovery Crème and the Hydrating Crème contain ceramides as a central building block for barrier repair. The ZO Skin Health Daily Power Defense 2.0 uses ceramides together with DNA repair enzymes, retinyl palmitate, and meristem cell cultures (plant stem cells from edelweiss extract, Leontopodium Alpinum) - a combination that protects and renews at the same time. The iS Clinical Sheald Recovery Balm uses ceramides in an occlusive formula that seals the barrier, especially after treatments.
In our beauty salon in Cologne, we particularly recommend ceramide-containing products to clients who use aggressive active ingredients like retinol or acids. Dr. med. Niels Freitag emphasizes: The more active your ingredients, the more important barrier repair with ceramides is as a counterbalance.
Related Categories: Ceramides are part of moisturizers. Especially important in combination with retinol and glycolic acid, without overwhelming the skin. Ceramides are particularly beneficial for sensitive skin because they strengthen the natural protective function without causing irritation.

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Frequently Asked Questions about Ceramides
What are ceramides and why does my skin need them?
Ceramides are skin-identical lipids that make up about 50% of the skin barrier. They hold skin cells together and prevent moisture loss. With increasing age and due to external factors (UV, cleansing, cold), the ceramide content decreases. Products containing ceramides can compensate for this loss.
How do I know if I'm deficient in ceramides?
Typical signs: the skin feels tight after cleansing, reacts sensitively to products that were previously tolerated, feels rough, or shows fine dryness lines. If your skin is suddenly more sensitive than usual, a weakened barrier may be the reason.
Do I need ceramides if I use retinol?
Highly recommended. Retinol accelerates skin renewal and can initially weaken the barrier. Ceramides counteract this and help the skin to tolerate the retinol phase better. ZO Skin Health Daily Power Defense 2.0 deliberately combines both active ingredients.
Are ceramides suitable for all skin types?
Yes. Oily skin also has a skin barrier that needs ceramides. Ceramides do not clog pores or make the skin oilier. For oily skin, opt for lighter textures (serum instead of rich cream).
Can I use too many ceramides?
Practically not. Ceramides are natural skin substances and are well tolerated. Overdosing is not a risk with topical application. Ceramide-containing care morning and evening is beneficial for most skin types.











