Pinealon
EDR peptide · Glu-Asp-Arg
The Khavinson tripeptide suddenly at the center of the sleep-and-longevity conversation
Pinealon is a synthetic three-amino-acid peptide (Glu-Asp-Arg, 'EDR') from the family of short 'peptide bioregulators' developed by Vladimir Khavinson's group at the St. Petersburg Institute of Bioregulation and Gerontology. Designed with the pineal gland and brain aging in mind, it spent decades in relative obscurity — until it abruptly became one of the most-searched peptides of 2026.
Looking to source Pinealon? It's stocked at RGP Labs — code PINEAL10 applies automatically at checkout.
View Pinealon →Why everyone is suddenly asking about Pinealon
Stanford neuroscientist Andrew Huberman publicly named Pinealon (alongside SS-31) as a peptide to watch in 2026, and separately described a striking personal observation — his tracked REM sleep roughly doubling over months of pulsed use. He has been equally public about the caveat: human data on Pinealon is nearly nonexistent. Both halves of that statement matter, and this page takes the second one seriously.
What the Research Actually Says
Every claim below is cited to the published literature and labeled by how far the evidence has actually progressed. Numbers refer to the reference list at the bottom of the page.
Neuroprotection under oxidative stress
Preclinical (cell & animal)The best-documented Pinealon finding: in neuronal cell models, Pinealon dose-dependently limited reactive-oxygen-species accumulation and reduced cell death under oxidative stress, while supporting proliferative activity.
Brain-aging & Alzheimer's models
Preclinical (cell & animal)In an in vitro Alzheimer's-model preparation, EDR and related short peptides restored dendritic spine density; follow-on work reported protective effects in aged, fibroblast-derived induced neurons.
Proposed epigenetic mechanism
Preclinical (cell & animal)Khavinson's group hypothesizes that short peptides like EDR penetrate cells and interact directly with DNA to modulate gene expression and protein synthesis — a provocative mechanism explored in the context of Alzheimer's pathogenesis, but not yet independently confirmed.
Sleep & circadian biology
Preclinical (cell & animal)Pinealon is named for the pineal gland, the brain's melatonin factory, and sits within a research program on pineal aging. Direct evidence that Pinealon improves human sleep, however, is currently anecdote — including the high-profile anecdote that made it famous. It is the single biggest open question about this compound.
Where the Evidence Stops
- ◆Nearly the entire Pinealon literature comes from one research group (Khavinson and collaborators), largely in Russian journals. Independent replication is scarce.
- ◆There are no Western randomized controlled trials. The sleep claims driving current interest are self-reported, not studied.
- ◆As a three-amino-acid peptide, claims of oral or systemic activity raise real pharmacology questions (stability, delivery) that the literature has not resolved.
Research-grade Pinealon, batch-documented
RGP Labs ships from the US and publishes a batch number and full specifications for every vial. Code PINEAL10 takes 10% off — applied automatically at checkout.
Sold for laboratory research use only — not for human consumption.
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Not ready to decide about Pinealon?
Our free guide covers Pinealon and nine other research peptides in depth — mechanisms, the state of the evidence, safety considerations, and a supplier-vetting checklist — across 12 chapters and 140+ citations.
References
- Khavinson V, Ribakova Y, Kulebiakin K, et al. Pinealon increases cell viability by suppression of free radical levels and activating proliferative processes. Rejuvenation Research, 2011.
- Kraskovskaya NA, et al. Short peptides restore dendritic spine density in an in vitro model of Alzheimer's disease. Bulletin of Experimental Biology and Medicine, 2017.
- Khavinson VK, Linkova NS, et al. EDR peptide: possible mechanism of gene expression and protein synthesis regulation involved in the pathogenesis of Alzheimer's disease. Molecules, 2021.
- Kraskovskaya N, et al. Short peptides protect fibroblast-derived induced neurons from age-related changes. International Journal of Molecular Sciences, 2024.
- Khavinson VKh Peptides and ageing. Neuro Endocrinology Letters, 2002.
Published 2026-08-12. Reviewed against the cited primary literature.
This page is for educational purposes only and is not medical advice. Peptides discussed here are research compounds; nothing here is a recommendation to use them. Consult a qualified healthcare provider about anything affecting your health.