research Development of Topical Formulations Containing 20% of Coated and Uncoated Zinc Oxide Nanoparticles: Stability Assessment and Penetration Evaluation by Reflectance Confocal Laser Microscopy
In this study, formulations containing 20% zinc oxide nanoparticles demonstrated stability and improved spreadability without penetrating the deepest skin layers, instead accumulating in skin furrows and hair follicles.