Specifying sustainable materials and products have consequences for health and the environment - some intentional, and some can be unintentional, if not fully vetted based on the built environment application and performance requirements of the end user. Each project requires prioritization of project needs including the maintenance of materials and products post occupancy. From the beginning of the programming process, prioritization of the project goals, including but not limited to aesthetics, price, durability, anticipated product service life, material health, embodied carbon, and circularity, have to be established and agreed upon by the integrated design team and client representatives. Although designers focus on aesthetics - as that is the primary goal in creating experiential spaces, it is necessary to know the end user needs and balance the beauty of the design with the performance characteristics needed to avoid unintentional consequences, such as premature product failure, maintenance and cleaning issues, human health issues with noise, acoustics, thermal comfort, lighting comfort, etc. and the various impacts of different products being considered for floors, walls, and ceilings. Using a specification approach that responds to various programming questions, includes all stakeholder input, and evaluates required performance is the most successful way to create positive outcomes for beautifully sustainable environments! Designers have the power to maximize the sustainable impact and material health of product selections, contributing to positive outcomes for building users.