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Neuropeptides & sleep

Orexin B Price Comparison

Linear 28-amino-acid hypocretin-2 peptide, selective for the OX2 receptor.

Also referred to as: Orexin B (Hypocretin-2)

UK supplier comparison

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For in-vitro laboratory research only

Orexin B is listed here as a research material. It is not for human or veterinary consumption, and nothing on this page is medical advice or dosing guidance. PeptideCompare is paid by flat supplier fees — never by sales commission or referral — so a price ranks by its number, not by who pays. We do not sell, test or verify any product, and quality or CoA labels are suppliers’ own claims. Always check the final price, documentation and legality with the supplier yourself.

Research profile

About Orexin B in the lab

Orexin B comes from the same precursor as orexin A but is linear and shorter. Its preference for OX2R makes it useful for separating the roles of the two orexin receptors in sleep and energy-balance studies.

Proposed mechanism

Binds OX2R with much higher affinity than OX1R, activating Gq-coupled excitatory signalling in arousal-promoting neurons.

Typical research themes

  • OX2R selectivity
  • Sleep–wake regulation
  • Receptor subtype studies

This profile is a short, general summary of publicly discussed science. It is not exhaustive, not peer-reviewed by PeptideCompare, and is not medical advice. PeptideCompare provides no dosing, protocol or usage guidance — nothing here is for human or veterinary use.

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