Ceramides
- Effective dose
- 1–2 %
- Evidence
- 4/5· Strong
Last updated June 1, 2026
What it is
Ceramides are lipid molecules that make up a large share of the skin barrier, where they sit between skin cells alongside cholesterol and fatty acids to seal in water and keep irritants out. Topically applied ceramides replenish this lipid matrix, reinforcing the stratum corneum and reducing transepidermal water loss. They are a foundational moisturizing and barrier-repair ingredient rather than an active that drives a single visible change.
Benefits
Ceramide-containing formulations improve skin hydration and barrier function, with measurable reductions in water loss often seen within one to two weeks, and they help calm dryness in conditions like atopic dermatitis. Total ceramides in the 1-2% range (paired with cholesterol and free fatty acids) is a commonly cited target for mild barrier impairment. Best results come when ceramides are combined with a balanced lipid blend rather than used in isolation.
When to take it
Suitable for both morning and evening use, applied after water-based serums and before heavier occlusives. Layering over a humectant helps trap moisture against the skin.
Side effects
Ceramides are well tolerated by most skin types with a low risk of irritation. Reactions, when they occur, usually trace to other ingredients in the formula rather than the ceramides themselves.
Sources
Products containing Ceramides
No products in our database contain this ingredient yet.