| SC | stratum corneum |
| Cer | ceramide |
| GlcCer | glucosylceramide |
| SPT | serine palmitoyltransferase |
| CerS | ceramide synthase |
| GCS | glucosylceramide synthase |
| GBA | β-glucocerebrosidase |
| SMS | sphingomyelin synthase |
| ASM | acid sphingomyelinase |
| AD | atopic dermatitis |
| TEWL | transepidermal water loss |
| RHEK | reconstructed human epidermal keratinization |
| HPTLC | high performance thin-layer chromatography |
| PBS | phosphate buffered saline |
| DAB | 3,3′-diaminobenzidine |
| GAPDH | glyceraldehyde 3-phosphate dehydrogenase |
| HRP | horseradish peroxidase |
| S.E. | standard error |