Pinealon is a synthetic tripeptide (Glu-Asp-Arg, EDR) classified as a Khavinson-class bioregulator peptide targeted at the pineal gland and central nervous system, investigated for neuroprotective and anti-aging properties in brain tissue. Like other short bioregulator peptides in the Khavinson series, pinealon is proposed to reach neuronal target cells via amino acid transporter mechanisms and modulate gene expression in aging neurons, with suggested effects on mitochondrial function and neuronal structural integrity. Published research on related Khavinson tripeptides has demonstrated restoration of neuronal spine density in in vitro models of Alzheimer's disease and modulation of epigenetic targets in aging neural tissue. Pinealon has not received FDA approval; evidence derives from Russian-origin preclinical studies and Khavinson-class literature, with no independent clinical trials published in Western indexed journals. Pinealon research interest centers on its role as a pineal gland bioregulator with neuroprotective and sleep-regulatory properties. As a pineal-derived peptide, pinealon is investigated for its potential to support melatonin pathway regulation, circadian rhythm maintenance, and age-related cognitive decline — areas where pineal gland function plays a central role. Research in aged animal models has examined pinealon-class peptides for effects on neuronal integrity, oxidative stress markers in brain tissue, and the preservation of sleep architecture with aging. The pineal gland produces melatonin and regulates circadian biology; as a targeted bioregulator for this tissue, pinealon represents an approach to age-associated disruptions in sleep quality and neuroendocrine signaling that is mechanistically distinct from melatonin supplementation itself. Pinealon as a peptide for sleep: Research interest in pinealon for sleep support derives from its classification as a pineal gland bioregulator. Unlike melatonin, which directly supplements a sleep hormone, pinealon is proposed to work upstream by supporting the regulatory function of the pineal gland itself — potentially offering a more targeted approach to age-related sleep disruption in a research context. This mechanism distinguishes pinealon from direct sedative or melatonin-based sleep interventions. Pinealon is a research compound; no clinical trials have established safety or efficacy for any indication including sleep support.