Core Insights - The article discusses the emergence of exosomes in the skincare industry, highlighting their potential to revolutionize traditional skincare methods through advanced biotechnological applications [1][7]. Group 1: What are Exosomes? - Exosomes are nano-sized vesicles (30-150 nanometers) released by cells, serving as key carriers for intercellular communication [2]. - They transport bioactive substances, including proteins, nucleic acids, and lipids, facilitating the regulation of recipient cell functions [3]. Group 2: Mechanism of Action - Exosomes operate through two primary mechanisms: 1. They provide an efficient delivery system that can penetrate the skin barrier, allowing active ingredients to reach deeper skin layers [4]. 2. They possess messenger functions that can significantly influence cell behavior, promoting collagen production and reducing inflammation [5][6]. Group 3: Application in Cosmetics - The use of exosomes in cosmetics presents several advantages: - High efficiency due to their nano-scale and targeted delivery, potentially requiring lower concentrations than traditional ingredients [8]. - Multifunctionality, allowing a single ingredient to address multiple skin concerns, thus simplifying formulations [8]. - High biocompatibility, particularly with plant-derived exosomes, which reduces the risk of allergic reactions [8]. - However, challenges exist, including high technical barriers for extraction and purification, and variability in safety based on the source of exosomes [9].