Impact of propylene glycol, menthol:thymol deep eutectic solvent, and their blends on the structure and molecular mobility of stratum corneum components
This study explored how propylene glycol (PG), menthol:thymol deep eutectic solvent (DES, molar ratio 6:4), and PG:DES blends modulate drug permeation by impacting the stratum corneum (SC). Porcine SC samples were exposed to PG, DES, and PG:DES blends with varying PG content (10 %, 50 %, or 90 %). The impact of these formulations on SC lipid extraction, lipid arrangement, and keratin's secondary s
