β-Amyloid 1-15 is primarily used in research applications, particularly in the study of Alzheimer's disease. It serves as a peptide fragment to investigate the mechanisms of amyloid plaque formation, which is a hallmark of Alzheimer's pathology. Researchers utilize it to develop and test diagnostic tools, such as immunoassays and imaging agents, aimed at detecting amyloid aggregates in the brain. Additionally, it is employed in the development of therapeutic strategies, including vaccines and antibody-based treatments, to target and neutralize amyloid-beta peptides. This peptide fragment also aids in understanding the structural and biochemical properties of amyloid-beta, contributing to the broader field of neurodegenerative disease research.