Sustainable paints often rely upon ingredients derived from natural sources, such as clay, chalk, plant oils, or casein (a milk protein). These bio-based components reduce the reliance on petroleum-based chemicals that are typical in standard paints. Plant-based resins, for example, provide the necessary binding properties, while natural pigments deliver vibrant color without synthetic additives. By harnessing the capabilities of renewable resources, these paints offer both functional performance and environmental advantages, especially in applications where sensitive users or sustainable certifications are a priority.