Ceramide NS (formerly Ceramide 2) and Ceramide NG (formerly Ceramide 3) are naturally occurring sphingolipids that help restore and maintain the skin's lipid barrier, reducing transepidermal water loss. They are widely used in moisturizers and barrier-repair formulations to improve hydration and skin integrity.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient irritation or stinging | Rare | Generally well tolerated; occasional mild reactions often relate to other formulation components rather than the ceramide itself |
| Contact dermatitis / allergic reaction | Very rare | Sensitization to ceramides is uncommon given their identity to endogenous skin lipids |
| Clogged pores or breakouts | Rare | More associated with overall occlusive vehicle than the ceramide ingredient |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.