| AGs | alkylglycerols |
| ATR-FTIR | attenuated total reflectance-Fourier transform infrared |
| DI | diclofenac |
| ER | enhancement ratio |
| GLYAC | glycyrrhizic acid ammomium salt |
| NP | naproxen |
| PI | piroxicam |
| SC | stratum corneum |
| TEWL | transepidermal water loss |
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