Cognitive & Neurological Research
GenoPept’s Cognitive & Neurological Research range covers the neuropeptides most studied in preclinical models of memory, anxiety, sleep and neuroprotection: Semax and NA-Semax Amidate, Selank and the Semax + Selank Blend, DSIP, Oxytocin, Pinealon, P21, PE-22-28, PT-141 and a porcine cerebral peptide hydrolysate. Every batch is ≥99% purity, verified by HPLC and LC-MS at an independent ISO/IEC 17025 laboratory with a batch Certificate of Analysis.
UK laboratories can buy cognitive and neurological research peptides in the UK with discreet, tracked Royal Mail dispatch. All products are supplied for in-vitro laboratory research only and are not for human or veterinary use.
Showing all 11 results
DSIP (Delta Sleep-Inducing Peptide)
Cognitive & Neurological Research Price range: £10.00 through £30.00Clear2mg5mg10mg15mg
About Cognitive & Neurological Research at GenoPept
The compounds in this range act on the central nervous system through defined receptors and pathways. Semax and Selank are regulatory peptides derived from ACTH(4-10) and tuftsin, studied for BDNF expression and GABAergic signalling. DSIP and Oxytocin are endogenous neuropeptides used in sleep and social-behaviour models. P21, PE-22-28 and Pinealon are studied in neurotrophic and neuroprotective assays.
Research fields served include memory paradigms, anxiety and stress models, sleep electrophysiology, neurogenesis, neuroprotection, and melanocortin and oxytocin receptor pharmacology. Findings come from preclinical and published literature, not from effects in people. GenoPept supplies the range to UK universities, neuroscience laboratories, contract research organisations and independent researchers.
Compounds in this range
Regulatory peptides (ACTH and tuftsin derived)
- Semax – heptapeptide analogue of ACTH(4-10); studied for BDNF expression, memory paradigms and ischaemia models. Sizes: 5mg, 10mg, 30mg.
- NA-Semax Amidate 30mg – N-acetylated, C-amidated Semax analogue with greater enzymatic stability; studied in the same cognitive models. Sizes: 30mg.
- Selank – tuftsin-derived heptapeptide; studied in anxiety, stress and GABA receptor modulation models. Sizes: 5mg, 10mg, 30mg.
- Semax + Selank Blend 20mg – both heptapeptides in one vial for co-investigation. Sizes: 20mg.
Neurotrophic and neuroprotective peptides
- P21 (P021) 10mg – CNTF-derived peptide mimetic (Ac-DGGLAG-NH2); studied for neurogenesis, BDNF signalling and tau-related models. Sizes: 10mg.
- PE-22-28 10mg – 7-amino-acid spadin analogue; studied as a TREK-1 potassium channel blocker in depression and neurogenesis models. Sizes: 10mg.
- Pinealon (EDR) – Glu-Asp-Arg Khavinson tripeptide bioregulator; studied in oxidative stress and neuronal culture models. Sizes: 5mg, 10mg, 20mg.
- Porcine Cerebral Peptide Hydrolysate 60mg – enzymatic porcine brain hydrolysate of low-molecular-weight peptides; studied in neurotrophic and neuronal survival assays. Sizes: 60mg.
Neurohormones and behavioural neuropeptides
- DSIP (Delta Sleep-Inducing Peptide) – endogenous nonapeptide; studied in sleep regulation, stress and circadian models. Sizes: 2mg, 5mg, 10mg, 15mg.
- Oxytocin – cyclic nonapeptide neurohormone; studied in social behaviour, oxytocin receptor pharmacology and neuroendocrine models. Sizes: 2mg, 5mg, 10mg.
- PT-141 (Bremelanotide) 10mg – cyclic melanocortin (MC3R/MC4R) agonist analogue of alpha-MSH; studied in central melanocortin signalling and sexual behaviour models. Sizes: 10mg.
Choosing between neuropeptides for research
Semax and Selank are the most common starting point: Semax derives from ACTH(4-10) and is studied in memory and ischaemia models, whereas Selank derives from tuftsin and is studied in anxiety and stress models.
| Compound | Target / pathway | Length / class | Typical model systems |
|---|---|---|---|
| Semax | BDNF/TrkB expression | 7-amino-acid ACTH(4-10) analogue | Rodent memory tasks, ischaemia models |
| Selank | GABA receptor modulation | 7-amino-acid tuftsin analogue | Anxiety and stress paradigms |
| DSIP | Sleep and stress regulation | 9-amino-acid endogenous peptide | Sleep EEG, circadian and stress models |
| Oxytocin | Oxytocin receptor (OXTR) | Cyclic 9-amino-acid neurohormone | Social behaviour, OXTR cell assays |
| P21 | CNTF mimetic, BDNF and neurogenesis signalling | Adamantylated tetrapeptide | Neurogenesis, tau and neurodegeneration models |
| PE-22-28 | TREK-1 potassium channel | 7-amino-acid spadin analogue | Depression, neurogenesis, ion-channel assays |
| PT-141 | MC3R/MC4R melanocortin receptors | Cyclic 7-amino-acid alpha-MSH analogue | Central melanocortin and sexual behaviour models |
Pinealon belongs to the Khavinson bioregulator series; see our guide to peptide bioregulators.
Purity, testing and Certificates of Analysis
Every batch in the Cognitive & Neurological Research range is made to ≥99% purity and tested by an independent laboratory, Puralytix (ISO/IEC 17025 accredited). HPLC confirms purity and LC-MS confirms identity, and the results are recorded on a batch-specific Certificate of Analysis.
Each product page carries a "View Certificate of Analysis" button, and the full library is published at genopept.co.uk/coa-certificates. See also what a Certificate of Analysis shows.
Ordering research peptides in the UK
Most compounds come in several vial sizes. For larger programmes, bulk and wholesale boxes of 10 vials save 20–50% against single-vial pricing. Retail baskets earn automatic discounts: 5% over £300, 10% over £500, 15% over £1,000.
Orders are dispatched discreetly by tracked Royal Mail Special Delivery (£10, free on orders of £200 or more). Some lines ship on backorder (around 20 days from verified payment). We accept bank transfer and crypto; retail delivery is UK-only, with export by wholesale quote. Useful reading: how to reconstitute research peptides, how to store research peptides and research peptides and UK law.
Cognitive & Neurological Research FAQs
What are cognitive and neurological research peptides?
They are neuropeptides and peptide analogues studied in preclinical models of memory, anxiety, sleep, social behaviour and neuroprotection. The GenoPept range includes Semax, Selank, DSIP, Oxytocin, Pinealon, P21, PE-22-28, PT-141 and related products, all supplied in the UK for in-vitro laboratory research only.
What is the difference between Semax and Selank?
Both are synthetic heptapeptides from different parent sequences. Semax is an ACTH(4-10) analogue studied for BDNF expression, memory and ischaemia models. Selank is a tuftsin analogue studied for anxiety, stress and GABAergic modulation. The GenoPept Semax + Selank Blend contains both in a fixed ratio for comparison studies.
How are these neuropeptides tested?
Every batch is tested by Puralytix, an independent ISO/IEC 17025 laboratory. HPLC confirms purity of 99% or higher and LC-MS confirms identity against the expected mass. The batch Certificate of Analysis is available on each product page and in the GenoPept COA library.
How should I store and reconstitute neuropeptides?
Store unopened lyophilised vials at –20 °C for long-term use, or 2–8 °C short term, protected from light. Reconstitute with bacteriostatic water or sterile diluent by running the solvent down the vial wall and swirling gently; never shake. Keep reconstituted solutions at 2–8 °C and use within your protocol's stated period.
Are these peptides for human use?
No. All products in this category are supplied for in-vitro laboratory research only. They are not medicines, are not approved by any regulator for human or veterinary use, and are not for diagnostic or therapeutic purposes. GenoPept does not provide dosing or administration information, and purchasers confirm they are buying for legitimate research.
Research use only. All products in this category are supplied for in-vitro laboratory research only. They are not for human or veterinary use, are not medicines, and are not for diagnostic or therapeutic use. See our research use only policy and FAQs.