Ceramide III B (Ceramide NP) is a synthetic skin-identical lipid used to restore and reinforce the stratum corneum barrier, helping reduce transepidermal water loss and maintain hydration. It is commonly incorporated into moisturizers and barrier-repair formulations.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient irritation or stinging | Rare | Usually related to other formulation components rather than the ceramide itself |
Allergic contact dermatitis | Very rare | Ceramides are skin-identical lipids and rarely sensitizing |
Clogged pores / comedogenicity | Rare | Possible in occlusive heavy formulations on acne-prone skin |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.