β-Amyloid 29-40 is primarily used in research settings to study the mechanisms of Alzheimer's disease. It is a peptide fragment that helps scientists understand the aggregation process of amyloid proteins, which is a key feature in the development of amyloid plaques in the brain. Researchers utilize this peptide to investigate how these plaques contribute to neuronal damage and cognitive decline. Additionally, it is employed in the development and testing of potential therapeutic agents aimed at inhibiting amyloid aggregation or promoting its clearance. This peptide also serves as a tool in biochemical assays to explore the interactions between amyloid peptides and other cellular components, providing insights into the pathological pathways of neurodegenerative diseases.