Cytoprotective Evaluation of Juglans regia L. Septum Extract and Development of Extract-Based Gels and Films for Topical Application

Background/Objectives: Juglans regia L. septa are a rich source of phenolic compounds with potential skin-related biological activity. This study evaluated the cytoprotective activity of a lyophilised J. regia septum extract and developed extract-containing polymeric gels suitable for topical application and semi-solid extrusion (SSE) 3D printing.