Fact-Checked·Verified against peer-reviewed sources · Last updated Oct 24, 2026·For research use only - not for human consumption
CognitiveActive Research

Orexin A

Also known as: hypocretin-1 · hypocretin 1 · orexin-A · HCRT1

For in-vitro (laboratory) research purposes only. Not for human or animal consumption.

Peptide Stores Online branded research vialCOMING SOON

Available Forms

InjectableNasal SprayOral

Research Applications

Cognitive EnhancementNeuroprotection

Check independent lab results, free

Finnrick Analytics publishes independent lab test results for peptide products from named vendors, and anyone can check the published results for free.

For in-vitro research use only. Not for human consumption.

1What Is Orexin A?

Hypothalamic neuropeptide studied for wakefulness promotion and narcolepsy treatment.

4Published Research - Plain English Summaries

The studies below have been published in peer-reviewed journals. Summaries are written in plain language - no jargon. Citations are provided as text only.

animal study

Tran KN, Munni YA, Mac GL, Habiba SU, Jeong JW, Seong SH, Yang IJ · 2027 · Journal of ethnopharmacology · PMID 42586393

animal study

Aurfan Z, Fransson A, Davidsson J, Risling M, Günther M, Thams S · 2026 · Neurobiology of disease · PMID 42777964

other

Aghaei M, Khakpay R, Khakpai F, Feizi MH · 2026 · Neuropharmacology · PMID 42526687

animal study

Costello A, Linning-Duffy K, Shi J, Lonstein JS, Yan L · 2026 · Annals of medicine · PMID 41508567

other

Åkeby S, Sörensen M, Karlsson G, Lyckenvik T, Bjellvi J, Zetterberg H, Blennow K, Wasling P · 2026 · Sleep medicine · PMID 42753384

animal study

Wang C, Yan W, Ma W, Zhang Y, Li X, Ma Y, Fang J, Li W, Wang R · 2026 · Physiology & behavior · PMID 42520953

animal study

Khalaveh M, Azizbeigi R, Taslimi Z, Haghparast A · 2026 · Physiology & behavior · PMID 42314853

other

Key finding: The study evaluates orexin-A as a possible marker connected to kidney function in chronic kidney disease.

A 2026 human study in the Annals of African Medicine measured orexin-A levels in adults with chronic kidney disease to examine how renal function relates to this neuropeptide.

Saeed HRM, Al-Ani RH, Abdulsattar SA, Challoob MH · 2026 · Annals of African medicine · PMID 42893839

animal study

Kong Q, Niu Y, Yao J, Hou X, Wang Y, Wang Y, Jia R, Zhou H · 2026 · Journal of ethnopharmacology · PMID 42173415

animal study

Mi T, He Z, Yu B, Li Q, Lu G, Hao J, Niu J, Ma S, Rong W, Niu J · 2026 · The Journal of neuroscience : the official journal of the Society for Neuroscience · PMID 42880970

Buy Orexin A - Verified Vendors

The vendors below are affiliate partners of Peptide Stores Online. Each listing links to the vendor's own website, where ordering, payment, and delivery are handled by the vendor.

No active listings yet

Check back soon - vendors are added regularly.

All content on this page is for in-vitro research purposes only. Not intended for human or animal use. Consult a licensed professional before handling research chemicals. No content on this page constitutes medical advice or a treatment recommendation.

← Back to Peptide Library

All products listed on Peptide Stores Online are for in-vitro laboratory and educational research purposes only. Not for human or animal consumption. Not evaluated by the Food and Drug Administration. Not intended to diagnose, treat, cure, or prevent any disease or condition. All sellers and buyers agree to full research-use-only terms at account creation. Peptide Stores Online assumes no liability for misuse of any product listed on this platform.