Prolactin-Releasing Peptide (1-31) (human) is primarily used in research settings to study its role in regulating prolactin secretion. It helps in understanding the mechanisms of prolactin release and its impact on lactation, reproductive functions, and stress responses. This peptide is also investigated for its potential effects on appetite regulation and energy balance, making it relevant in studies related to obesity and metabolic disorders. Additionally, it serves as a tool in neuroscience research to explore its influence on brain functions and behavior, particularly in areas related to stress and anxiety. Its applications extend to pharmacological studies aimed at developing therapeutic agents targeting prolactin-related conditions.