A white microscope on a laboratory table

Why Ceramides Are the Secret to a Stronger Skin Barrier

By Michael C. · Written and reviewed by Michael C.

Ceramides · Published 2026-05-30 · 11 min read · 2104 words · Updated 2026-09-08

Ceramides are the fats that hold your skin barrier together, and topping them up is one of the most effective ways to fix dryness, sensitivity and flaking.

Key takeaways

  • Ceramides are lipids that make up a large portion of the natural glue holding skin cells together.
  • A damaged barrier from over-exfoliation, harsh cleansing or dry weather leads to a ceramide deficit.
  • Ceramide-based moisturisers replace what's missing and reduce water loss through the skin.
  • They work best in a specific ratio alongside cholesterol and fatty acids, mimicking the skin's own composition.
  • Nearly everyone benefits from ceramides, but they're essential for eczema, rosacea and over-exfoliated skin.

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Source: SkinLabs Editorial Team ()

Cover image: Ousa Chea — credit