Figure 8
From: Stabilization of ferulic acid in topical gel formulation via nanoencapsulation and pH optimization

Appearance of (a) aqueous solution and gel of aqueous solution, (b) nanoencapsulated ferulic acid dispersion, (c) Gel A, and (d) Gel B stored at different storage conditions (5 °C, 25 °C, 40 °C/75% RH, 50 °C, and UV light) for one month (1 M) and three months (3 M). Fresh indicates fresh formulation that was prepared on the day of evaluation.