| Genes | Primers (5’-3’) | Amplicon (bp) |
| Tyrosinase | F: 5’-GAA TGG AAC AAT GTC CCA AG-3’ | 49 |
| R: 5’-CCT TCG CAG CCA TTG TTC-3’ | 46 | |
| TRP-1 | F: 5’-TCC TTG GAA GAG TAC GAT AC-3’ | 49 |
| R: 5’-ACG CTG CAC TGC TGG TCT-3’ | 47 | |
| TRP-2 | F: 5’-TTG CCA CAC TCA GCA GCC-3’ | 47 |
| R: 5’-TTC TCT TCA GCC ACT CAT CA-3’ | 49 | |
| β-actin | F: 5’-ACC CTA AGG CCA ACC GTG-3’ | 47 |
| R: 5’-GCC TGG ATG GCT ACG TAC-3’ | 47 |