Somatostatin-28 1-12 is primarily used in research and medical applications due to its role as a peptide fragment of somatostatin. It is often studied for its potential to inhibit the secretion of various hormones, including growth hormone, insulin, and glucagon. This makes it valuable in understanding and managing endocrine disorders. Additionally, it is utilized in experimental settings to explore its effects on cell proliferation and tumor growth, particularly in cancers that are hormone-sensitive. Its application extends to neuroscience research, where it is used to investigate its role in neurotransmission and brain function.