Impact of Formulation Design and Lyophilisation on the Physicochemical Characteristics of Finasteride Nanosystems
February 2023
in “
Journal of Microencapsulation
”
TLDR The finasteride nanosystem with trehalose is stable and effective for topical hair loss treatment.
The study aimed to develop a stable lyophilised finasteride nanosystem (FNS-NS) for topical delivery, focusing on the effects of formulation design and lyophilisation. Using ultrasonication, the FNS-NS was created and tested with two cryoprotectants. The resulting lyophilised FNS-NS had a spherical shape, particle sizes between 188.6 nm and 298.7 nm, low PDI values, and a zeta potential from -38.3 to +53.3 mV. Confocal laser microscopy showed higher cellular internalisation for undecorated FNS-NS compared to chitosan-decorated ones. The system remained stable for 90 days under proper storage, and the FNS-NS with 15% trehalose showed promising attributes for treating androgenic alopecia through topical delivery.