Best for
Dry, sensitive & eczema-prone skin
Typical concentration
Below 1%
Key benefit
Hydration lasts 24–48 hrs, vs 4–8 hrs without
Ceramides are lipids that naturally make up about half of your skin’s outer barrier. Rather than treating a specific concern the way an active ingredient does, ceramides work by physically rebuilding and reinforcing that barrier — which is why they’re considered one of the gentlest, most broadly useful ingredients in skincare.
What ceramides do for skin
- Rebuild the skin barrier — replenish the natural lipids that get depleted by aging, weather, pollution, and harsh skincare products
- Lock in moisture — a stronger barrier means less water escapes through the skin, so hydration lasts longer (studies show ceramide-containing formulas can maintain hydration for 24-48 hours, compared to 4-8 hours without them)
- Reduce sensitivity indirectly — ceramides aren’t anti-inflammatory the way niacinamide or bisabolol are; instead, by repairing the barrier, they reduce the conditions that trigger irritation in the first place
- Support recovery after barrier-disrupting treatments — helpful after sun exposure, exfoliating acids, retinol, or professional procedures like microneedling
What percentage of ceramides should you use
Unlike actives such as niacinamide or vitamin C, ceramide effectiveness isn’t primarily about percentage. Most skincare products contain ceramides at concentrations below 1% — and that’s normal, not a sign of a weak formula.
What matters more is the ratio and combination of ingredients. Skin’s natural barrier is made of ceramides, cholesterol, and fatty acids together — products that include all three in a balanced ratio tend to perform better than ceramide alone, since that combination mimics the skin’s actual lipid composition.
Who should use ceramides
Ceramides suit nearly every skin type, with particular benefit for:
- Dry or dehydrated skin — the most direct use case, restoring lipids and reducing water loss
- Sensitive or reactive skin, including eczema and atopic dermatitis — clinical research shows ceramide supplementation helps rebalance the skin’s natural lipid profile in barrier-compromised skin
- Anyone using strong actives — retinol, exfoliating acids, or vitamin C can weaken the barrier over time; ceramides help offset this
- Aging skin — natural ceramide levels decline with age, making topical replenishment more relevant over time
What to pair ceramides with
Ceramides are exceptionally easy to layer with almost anything, since they support and repair rather than actively treat a concern. There’s no real ingredient to avoid combining them with.
Apply a ceramide-containing moisturizer as the last step in your routine, especially after using retinol or exfoliating acids, to help offset dryness and support recovery overnight.
Frequently asked questions
Do ceramides help with eczema?
Research supports this — topical ceramide supplementation has been shown to help rebalance the skin’s lipid profile and improve barrier function in skin predisposed to atopic dermatitis, though it works alongside, not instead of, any treatment your dermatologist recommends.
Can I use ceramides every day?
Yes — they’re gentle enough for daily, twice-daily use for most people, including sensitive skin.
Do ceramides help after sunburn or sun exposure?
Yes, ceramides can support recovery of a barrier compromised by UV exposure, making them a reasonable follow-up to sun care, though they don’t replace proper sun protection or after-sun care for burns.
Why is the percentage of ceramides in a product so low?
Ceramides work differently from percentage-driven actives — a low percentage combined with the right supporting lipids (cholesterol, fatty acids) is normal and often more effective than a higher ceramide percentage alone.