Through the comparison between different recently emerging insulation materials, we analyzed the structure and elements during the lifecycle of these materials and speculated on their impact on human health, both during their production and after they are in use, and identified where the problematic phases are in their life span. Hempcrete is eventually recommended due to its high environmental performance and relatively low affordability. Our study also exposed the issue that these materials have been used at a relatively small scale due to their prevalence and high cost. We look forward to seeing these materials being used more widely and that people would switch their thinking behind material choices.