Bioactive compounds are natural compounds found in plants, herbs, foods, and other natural sources that may support health through a variety of biological effects. This category covers the science behind bioactive compounds, including polyphenols, flavonoids, carotenoids, terpenes, alkaloids, and related ingredients. Purafit Science reviews their sources, mechanisms, potential benefits, safety, and overall level of scientific support to help readers better understand these widely discussed functional compounds.