Group 1 - Exosomes are nano-sized vesicles (30-150 nanometers) that act as "messengers" between cells, playing a crucial role in maintaining cellular vitality through precise information transfer and efficient material exchange [1][2] - Exosomes have a lipid bilayer structure that protects their internal bioactive substances, which include proteins, mRNA, miRNA, and small molecules essential for cellular functions [2][3] Group 2 - Exosomes can be derived from three main sources: human, animal, and plant, each with distinct functional characteristics and application scenarios [3] - Human-derived exosomes are natural carriers that facilitate cellular cooperation and metabolic regulation [3] - Animal-derived exosomes, found in colostrum and stem cells, enhance human cell vitality and require safety assessments before use [3] - Plant-derived exosomes, sourced from soybeans, grapes, and other plants, are cost-effective and free from animal components, making them suitable for skincare and food additives [3] Group 3 - Exosomes play an irreplaceable role in cellular cooperation and vitality maintenance by enabling precise intercellular communication, efficient material exchange, and dynamic regulation of cellular vitality [4] - They facilitate accurate signaling between cells, ensuring synchronized operations within cellular groups [4] - Exosomes act as efficient transporters for essential nutrients and repair materials, accelerating cell renewal [4] - They regulate cellular vitality by activating metabolic pathways based on the cell's needs [4] Group 4 - The research field is exploring the application value of exosomes, such as enhancing skin cell vitality in skincare products and optimizing stem cell exosome delivery systems using AI technology [5] - Exosomes are expected to become a core technological carrier for next-generation cellular health management and functional product development, offering new possibilities for human health [5]