Cosmetics & fragrance chemistry blends science and innovation to develop formulations that enhance aesthetics and well-being. The field encompasses the study of skin-friendly emulsions, bioactive ingredients, and advanced delivery systems for cosmetics, ensuring product stability, efficacy, and safety. Fragrance chemistry delves into the synthesis and molecular interactions of aromatic compounds, influencing sensory perception and consumer preferences. With the rise of sustainable beauty, researchers explore plant-based ingredients, biodegradable polymers, and green extraction methods. Advances in nanotechnology and biotechnology are shaping next-generation skincare and perfumery, offering personalized and long-lasting solutions. Understanding the chemistry behind cosmetics and fragrances is crucial for developing high-performance, safe, and sustainable products.