Sesterterpenoids are a class of natural products derived from isoprene units, featuring unique structural features that distinguish them from simpler terpenes. These compounds generally consist of four isoprene units (C5) linked together in various ways, resulting in complex and diverse molecular structures. Sesterterpenoids play crucial roles in the biosynthesis of important secondary metabolites such as antibiotics, pigments, and pheromones. They are commonly found in plants, fungi, and marine organisms, contributing to their defensive mechanisms or communication strategies. Due to their structural complexity, sesterterpenoids exhibit a wide range of biological activities, including antimicrobial, antiviral, anti-inflammatory, and cytotoxic effects. The study and application of these natural products continue to attract significant attention from researchers in the fields of biochemistry, pharmacology, and drug discovery.