Ingredient Guide

Ceramides

Also known as: Ceramide NP, Ceramide AP, Ceramide EOP, Ceramide NS, Ceramide Complex, Phyto-ceramides

All skin typesEspecially dry, sensitive, and barrier-compromised

What It Is

Lipid molecules that make up approximately 50% of the skin's natural barrier (stratum corneum lipid matrix). Ceramides hold skin cells together and prevent transepidermal water loss (TEWL).

What It Does

Ceramides fill gaps in the skin's lipid barrier — reducing water loss, improving barrier integrity, and creating the seal that keeps irritants and pathogens out. Topical ceramides replenish levels depleted by age, over-cleansing, harsh actives, and environmental stressors.

Best For

Dry skinBarrier repairSensitive skinPost-active recoveryMoisture retention

Benefits

  • Barrier lipid replenishment — fills gaps in the lipid matrix to restore the skin's natural seal
  • Reduces TEWL (transepidermal water loss) significantly
  • Non-irritating: one of the most tolerated barrier actives
  • Works synergistically with cholesterol and fatty acids for complete barrier repair

When to Be Careful

  • Concentration-dependent — trace amounts provide minimal barrier support
  • Best in a complete barrier lipid formula (ceramide + cholesterol + fatty acids)
ItGirlies Ingredient Intelligence
Best Routine Slot

Final step in the serum/moisturizer layer — morning and/or evening.

Good Match For

Dry, sensitive, barrier-stressed, or post-active skin. Essential in a routine with retinol, acids, or any stripping actives.

Proceed Carefully If…

No known concerns.

Signs You May Be Overdoing It

No signs of overuse — ceramides are always beneficial for the barrier.

Commonly Found In

MoisturizersBarrier CreamsSerumsGel Moisturizers

Products Containing Ceramides

Natural Moisturizing Factors + Beta Glucan
The Ordinary

FAQs About Ceramides

What are ceramides and why does skin need them?
Ceramides are lipid molecules making up roughly 50% of the skin barrier matrix. They hold the barrier together and prevent water loss. Levels deplete with age, harsh cleansing, and overactive exfoliation.
Do ceramides help with dry, sensitive skin?
Yes — ceramides are one of the most effective barrier-repair ingredients for dry and sensitive skin. They fill lipid gaps and reduce the water loss that causes tightness, flakiness, and sensitivity.
← Back to Product Decoder