Brassicasterol is widely used in research and industrial applications due to its unique properties. It serves as a biomarker in environmental studies, particularly in marine and freshwater ecosystems, to track the presence and activity of certain algae and phytoplankton. In the pharmaceutical industry, it is investigated for its potential cholesterol-lowering effects and its role in cardiovascular health. Additionally, brassicasterol is utilized in the development of dietary supplements and functional foods aimed at promoting overall wellness. Its presence in plant oils and marine sources also makes it valuable in the cosmetic industry, where it is incorporated into skincare products for its antioxidant and anti-inflammatory properties.