{"title":"Cognitive \u0026 Neurological","description":"\u003cp\u003eResearch peptides studied for their roles in neurotrophic signalling, cognitive pathways, neurological resilience, and stress response. For in vitro research use only.\u003c\/p\u003e","products":[{"product_id":"selank","title":"Selank","description":"\u003cp style=\"background:#eef4fb;border-left:3px solid #0b4a7c;padding:10px 14px;margin-bottom:1em;font-size:0.875em;\"\u003e\u003cstrong\u003eMulti-Buy Savings\u003c\/strong\u003e — Add 2+ products to save 10% automatically. Add 3+ to save 15%. Applied at checkout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSelank\u003c\/strong\u003e (sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro) is a synthetic heptapeptide analogue of the endogenous immunomodulatory peptide tuftsin, developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is studied for its role in GABA-A receptor modulation, serotonergic and dopaminergic signalling, and anxiolytic-like mechanisms in laboratory research models.\u003c\/p\u003e\u003cp\u003eSelank exhibits improved metabolic stability over endogenous tuftsin, with preclinical research exploring its interaction with multiple neurotransmitter systems. It is commonly used in laboratory investigations of stress response, memory consolidation, and neurological resilience pathways, including work on cytokine profiles and neuroimmune signalling.\u003c\/p\u003e\u003cp style=\"font-size:0.875em;border:1px solid #dde6f0;padding:10px;border-radius:4px;\"\u003e\u003cstrong\u003eCAS:\u003c\/strong\u003e 129954-34-3  ·  \u003cstrong\u003eFormula:\u003c\/strong\u003e C33H57N11O9  ·  \u003cstrong\u003eMW:\u003c\/strong\u003e 751.9 g\/mol  ·  \u003cstrong\u003ePurity:\u003c\/strong\u003e ≥99% HPLC  ·  \u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder  ·  \u003cstrong\u003eStorage:\u003c\/strong\u003e −20 °C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Areas:\u003c\/strong\u003e Anxiolytic mechanisms · GABA-A modulation · Memory \u0026amp; cognitive function · Serotonergic signalling · Stress response · Neuroimmunology\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Literature:\u003c\/strong\u003e\u003cbr\u003e• \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=selank+tuftsin+neuropeptide+anxiety\" target=\"_blank\" rel=\"noopener\"\u003ePubMed: Selank research literature →\u003c\/a\u003e\u003c\/p\u003e\u003cp style=\"background:#fff8e6;border-left:3px solid #e6a817;padding:10px 14px;font-size:0.8em;line-height:1.5;margin-top:1em;\"\u003e\u003cstrong\u003eResearch Use Only.\u003c\/strong\u003e Supplied strictly for in vitro laboratory research by qualified professionals. Not for human or veterinary administration. Not evaluated by the MHRA or FDA for therapeutic use. Researchers must comply with the Human Medicines Regulations 2012 and all applicable institutional guidelines. Peptide Biosciences accepts no liability for use outside a controlled research context.\u003c\/p\u003e","brand":"Peptide Biosciences","offers":[{"title":"5mg","offer_id":53108974649677,"sku":null,"price":22.5,"currency_code":"GBP","in_stock":true},{"title":"10mg","offer_id":53108974682445,"sku":null,"price":40.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/8846\/2669\/files\/SELANK10mgBox-M.jpg?v=1770812647"},{"product_id":"semax","title":"Semax","description":"\u003cp style=\"background:#eef4fb;border-left:3px solid #0b4a7c;padding:10px 14px;margin-bottom:1em;font-size:0.875em;\"\u003e\u003cstrong\u003eMulti-Buy Savings\u003c\/strong\u003e — Add 2+ products to save 10% automatically. Add 3+ to save 15%. Applied at checkout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSemax\u003c\/strong\u003e (Met-Glu-His-Phe-Pro-Gly-Pro) is a synthetic heptapeptide analogue of the ACTH(4-7) fragment, with a C-terminal Pro-Gly-Pro extension that confers improved metabolic stability over the parent peptide. Developed originally in Russia, it is widely studied for its role in BDNF (brain-derived neurotrophic factor) upregulation, neuroprotective signalling, and modulation of the hypothalamic-pituitary-adrenal (HPA) axis.\u003c\/p\u003e\u003cp\u003ePreclinical research has investigated Semax in stroke models, ischaemia-reperfusion studies, cognitive function, and memory consolidation pathways. Its ACTH-derived structure enables interaction with melanocortin receptors (MC2R\/MC4R), while the Pro-Gly-Pro extension increases peptidase resistance versus the parent ACTH(4-7) fragment.\u003c\/p\u003e\u003cp style=\"font-size:0.875em;border:1px solid #dde6f0;padding:10px;border-radius:4px;\"\u003e\u003cstrong\u003eCAS:\u003c\/strong\u003e 80714-61-0  ·  \u003cstrong\u003eFormula:\u003c\/strong\u003e C37H51N9O10S  ·  \u003cstrong\u003eMW:\u003c\/strong\u003e 813.9 g\/mol  ·  \u003cstrong\u003ePurity:\u003c\/strong\u003e ≥99% HPLC  ·  \u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder  ·  \u003cstrong\u003eStorage:\u003c\/strong\u003e −20 °C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Areas:\u003c\/strong\u003e BDNF upregulation · Neuroprotection · Cognitive \u0026amp; memory function · ACTH-receptor pharmacology · HPA axis modulation · Stroke \u0026amp; ischaemia models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Literature:\u003c\/strong\u003e\u003cbr\u003e• \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=semax+ACTH+BDNF+neuropeptide+cognition\" target=\"_blank\" rel=\"noopener\"\u003ePubMed: Semax research literature →\u003c\/a\u003e\u003c\/p\u003e\u003cp style=\"background:#fff8e6;border-left:3px solid #e6a817;padding:10px 14px;font-size:0.8em;line-height:1.5;margin-top:1em;\"\u003e\u003cstrong\u003eResearch Use Only.\u003c\/strong\u003e Supplied strictly for in vitro laboratory research by qualified professionals. Not for human or veterinary administration. Not evaluated by the MHRA or FDA for therapeutic use. Researchers must comply with the Human Medicines Regulations 2012 and all applicable institutional guidelines. Peptide Biosciences accepts no liability for use outside a controlled research context.\u003c\/p\u003e","brand":"Peptide Biosciences","offers":[{"title":"5mg","offer_id":53108991557965,"sku":null,"price":20.0,"currency_code":"GBP","in_stock":false},{"title":"10mg","offer_id":53108991590733,"sku":null,"price":38.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/8846\/2669\/files\/SEMAX10mgBox-M.jpg?v=1770812607"},{"product_id":"dsip","title":"DSIP","description":"\u003cp style=\"background:#eef4fb;border-left:3px solid #0b4a7c;padding:10px 14px;margin-bottom:1em;font-size:0.875em;\"\u003e\u003cstrong\u003eMulti-Buy Savings\u003c\/strong\u003e — Add 2+ products to save 10% automatically. Add 3+ to save 15%. Applied at checkout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDSIP (Delta Sleep-Inducing Peptide)\u003c\/strong\u003e (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) is a neuromodulatory nonapeptide first isolated from rabbit cerebral venous blood in 1974. It is studied for its role in circadian rhythm regulation, stress hormone modulation, and neurophysiological signalling related to sleep-wake cycles in preclinical research models.\u003c\/p\u003e\u003cp\u003eDSIP has been explored for its ability to modulate ACTH, cortisol, and somatostatin release, its interaction with opiate receptor systems, and its putative role in normalising sleep architecture in animal models of disrupted circadian function. Its broad neuromodulatory profile makes it a useful research tool in sleep biology, neuroendocrinology, and stress physiology.\u003c\/p\u003e\u003cp style=\"font-size:0.875em;border:1px solid #dde6f0;padding:10px;border-radius:4px;\"\u003e\u003cstrong\u003eCAS:\u003c\/strong\u003e 62568-57-4  ·  \u003cstrong\u003eFormula:\u003c\/strong\u003e C35H48N10O15  ·  \u003cstrong\u003eMW:\u003c\/strong\u003e 848.8 g\/mol  ·  \u003cstrong\u003ePurity:\u003c\/strong\u003e ≥99% HPLC  ·  \u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder  ·  \u003cstrong\u003eStorage:\u003c\/strong\u003e −20 °C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Areas:\u003c\/strong\u003e Circadian rhythm · Delta wave sleep regulation · ACTH \u0026amp; cortisol modulation · Somatostatin interaction · Neuroendocrinology · Opiate receptor research\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Literature:\u003c\/strong\u003e\u003cbr\u003e• \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=DSIP+delta+sleep-inducing+peptide+circadian+neuroendocrine\" target=\"_blank\" rel=\"noopener\"\u003ePubMed: DSIP research literature →\u003c\/a\u003e\u003c\/p\u003e\u003cp style=\"background:#fff8e6;border-left:3px solid #e6a817;padding:10px 14px;font-size:0.8em;line-height:1.5;margin-top:1em;\"\u003e\u003cstrong\u003eResearch Use Only.\u003c\/strong\u003e Supplied strictly for in vitro laboratory research by qualified professionals. Not for human or veterinary administration. Not evaluated by the MHRA or FDA for therapeutic use. Researchers must comply with the Human Medicines Regulations 2012 and all applicable institutional guidelines. Peptide Biosciences accepts no liability for use outside a controlled research context.\u003c\/p\u003e","brand":"Peptide Biosciences","offers":[{"title":"5mg","offer_id":53108994867533,"sku":null,"price":20.0,"currency_code":"GBP","in_stock":true},{"title":"15mg","offer_id":53108994900301,"sku":null,"price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/8846\/2669\/files\/DSIP5mgBox-M.jpg?v=1770812569"},{"product_id":"oxytocin","title":"Oxytocin","description":"\u003cp style=\"background:#eef4fb;border-left:3px solid #0b4a7c;padding:10px 14px;margin-bottom:1em;font-size:0.875em;\"\u003e\u003cstrong\u003eMulti-Buy Savings\u003c\/strong\u003e — Add 2+ products to save 10% automatically. Add 3+ to save 15%. Applied at checkout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOxytocin\u003c\/strong\u003e (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂; disulfide bridge Cys1–Cys6) is a nonapeptide hormone and neuropeptide produced in the paraventricular and supraoptic nuclei of the hypothalamus. It acts on OXTR (oxytocin receptor), a Gq-coupled GPCR expressed throughout the central and peripheral nervous systems, smooth muscle, and immune tissue.\u003c\/p\u003e\u003cp\u003eResearch applications for oxytocin span neuroscience, endocrinology, and behavioural biology. Key research areas include social bonding and pair bond formation, maternal behaviour, stress axis regulation via the HPA axis, anxiolytic mechanisms, trust and social cognition, and gut motility. Its well-characterised receptor pharmacology makes it a standard tool compound in GPCR research and behavioural neuroscience.\u003c\/p\u003e\u003cp style=\"font-size:0.875em;border:1px solid #dde6f0;padding:10px;border-radius:4px;\"\u003e\u003cstrong\u003eCAS:\u003c\/strong\u003e 50-56-6  ·  \u003cstrong\u003eFormula:\u003c\/strong\u003e C43H66N12O12S2  ·  \u003cstrong\u003eMW:\u003c\/strong\u003e 1007.2 g\/mol  ·  \u003cstrong\u003ePurity:\u003c\/strong\u003e ≥99% HPLC  ·  \u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder  ·  \u003cstrong\u003eStorage:\u003c\/strong\u003e −20 °C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Areas:\u003c\/strong\u003e OXTR receptor pharmacology · Social bonding \u0026amp; behaviour · HPA axis modulation · Maternal behaviour models · Anxiolytic mechanisms · Gut motility · Neuropeptide signalling\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Literature:\u003c\/strong\u003e\u003cbr\u003e• \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=oxytocin+receptor+social+bonding+neuroendocrine+behaviour\" target=\"_blank\" rel=\"noopener\"\u003ePubMed: Oxytocin research literature →\u003c\/a\u003e\u003c\/p\u003e\u003cp style=\"background:#fff8e6;border-left:3px solid #e6a817;padding:10px 14px;font-size:0.8em;line-height:1.5;margin-top:1em;\"\u003e\u003cstrong\u003eResearch Use Only.\u003c\/strong\u003e Supplied strictly for in vitro laboratory research by qualified professionals. Not for human or veterinary administration. Not evaluated by the MHRA or FDA for therapeutic use. Researchers must comply with the Human Medicines Regulations 2012 and all applicable institutional guidelines. Peptide Biosciences accepts no liability for use outside a controlled research context.\u003c\/p\u003e","brand":"Peptide Biosciences","offers":[{"title":"2mg","offer_id":53425681236301,"sku":null,"price":17.5,"currency_code":"GBP","in_stock":true},{"title":"10mg","offer_id":53425681269069,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/8846\/2669\/files\/Oxytocin2mg-M.jpg?v=1772090457"},{"product_id":"dermorphin","title":"DERMORPHIN","description":"\u003cp style=\"background:#eef4fb;border-left:3px solid #0b4a7c;padding:10px 14px;margin-bottom:1em;font-size:0.875em;\"\u003e\u003cstrong\u003eMulti-Buy Savings\u003c\/strong\u003e — Add 2+ products to save 10% automatically. Add 3+ to save 15%. Applied at checkout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDermorphin\u003c\/strong\u003e (Tyr-D-Ala-Phe-Gly-Tyr-Pro-Ser-NH₂) is a naturally occurring heptapeptide first isolated from the skin secretions of South American Phyllomedusa bicolor and Phyllomedusa sauvagei frogs. It was the first naturally occurring opioid peptide found to contain a D-amino acid residue (D-alanine at position 2), which confers exceptional μ-opioid receptor (MOR) selectivity and metabolic stability versus endogenous enkephalins and endorphins.\u003c\/p\u003e\u003cp\u003eDermorphin is among the most potent natural μ-opioid receptor agonists known, with binding affinity and potency several hundred times greater than morphine. In research, it is used as a selective μ-opioid receptor probe to study MOR pharmacology, opioid receptor structure-activity relationships, pain signalling pathways, and the role of D-amino acid incorporation in peptide biology.\u003c\/p\u003e\u003cp style=\"font-size:0.875em;border:1px solid #dde6f0;padding:10px;border-radius:4px;\"\u003e\u003cstrong\u003eCAS:\u003c\/strong\u003e 77614-16-5  ·  \u003cstrong\u003eFormula:\u003c\/strong\u003e C40H54N8O11S  ·  \u003cstrong\u003eMW:\u003c\/strong\u003e 882.97 g\/mol  ·  \u003cstrong\u003ePurity:\u003c\/strong\u003e ≥99% HPLC  ·  \u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder  ·  \u003cstrong\u003eStorage:\u003c\/strong\u003e −20 °C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Areas:\u003c\/strong\u003e μ-opioid receptor (MOR) pharmacology · Opioid receptor SAR · D-amino acid peptide biology · Pain signalling models · Endogenous opioid systems · Amphibian peptide chemistry\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eResearch Literature:\u003c\/strong\u003e\u003cbr\u003e• \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=dermorphin+opioid+receptor+peptide+D-amino+acid\" target=\"_blank\" rel=\"noopener\"\u003ePubMed: Dermorphin research literature →\u003c\/a\u003e\u003c\/p\u003e\u003cp style=\"background:#fff8e6;border-left:3px solid #e6a817;padding:10px 14px;font-size:0.8em;line-height:1.5;margin-top:1em;\"\u003e\u003cstrong\u003eResearch Use Only.\u003c\/strong\u003e Supplied strictly for in vitro laboratory research by qualified professionals. Not for human or veterinary administration. Not evaluated by the MHRA or FDA for therapeutic use. Researchers must comply with the Human Medicines Regulations 2012 and all applicable institutional guidelines. Peptide Biosciences accepts no liability for use outside a controlled research context.\u003c\/p\u003e","brand":"Peptide Biosciences","offers":[{"title":"Default Title","offer_id":54279618199885,"sku":null,"price":69.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/8846\/2669\/files\/DERMORPHIN.png?v=1783835925"}],"url":"https:\/\/www.peptide-biosciences.com\/collections\/cognitive-neurological.oembed","provider":"Peptide Biosciences","version":"1.0","type":"link"}