| AGA | Androgenetic alopecia |
| EGF | Epidermal Growth Factor |
| EGFR | EGF Receptor |
| IGF-1 | Insulin-like Growth Factor 1 |
| IGFBPs | IGF-Binding Proteins |
| IGF-1R | IGF-1 Receptor |
| IRS1/IRS2 | Insulin Receptor Substrates 1/2 |
| KGF | Keratinocyte Growth Factor |
| PDGF | Platelet-Derived Growth Factor |
| PDGFR | PDGF Receptor |
| PIP2 | Phosphatidylinositol 4,5-Bisphosphate |
| PIP3 | Phosphatidylinositol 3,4,5-Trisphosphate |
| TGF-β1 | Transforming Growth Factor-β1 |
| VEGF | Vascular Endothelial Growth Factor |