{"id":196,"date":"2026-02-17T17:16:28","date_gmt":"2026-02-17T15:16:28","guid":{"rendered":"http:\/\/example.test\/?post_type=product&#038;p=196"},"modified":"2026-07-23T13:16:49","modified_gmt":"2026-07-23T10:16:49","slug":"dsip-5-mg","status":"publish","type":"product","link":"https:\/\/life-peptide.com\/cs\/product\/dsip-5-mg\/","title":{"rendered":"DSIP 5 mg"},"content":{"rendered":"<p>Delta Sleep-Inducing Peptide (DSIP) is a <strong>naturally occurring nine-amino-acid neuropeptide<\/strong> first isolated during sleep research in the 1970s. Since its discovery, it has become one of the earliest peptides investigated for sleep regulation and remains widely referenced in research exploring sleep architecture, stress physiology and neuroendocrine signalling.<\/p>\n<p>Although originally identified because of its potential role in promoting delta sleep, later research suggested that DSIP may influence a broader range of physiological processes, including circadian biology, stress responses, pain modulation and hormonal regulation. Despite decades of investigation, its precise mechanism of action remains incompletely understood, making it an interesting subject for ongoing research.<\/p>\n<p><em>Looking to buy DSIP in Europe? LIFE Peptide supplies high-purity DSIP for laboratory research with reliable EU-wide shipping.<\/em><\/p>\n<hr \/>\n<h4><strong>Why DSIP is widely investigated<\/strong><\/h4>\n<p>Published research has investigated DSIP in relation to:<\/p>\n<ul>\n<li><strong>sleep quality<\/strong><\/li>\n<li><strong>sleep architecture<\/strong><\/li>\n<li><strong>delta sleep<\/strong><\/li>\n<li><strong>stress adaptation<\/strong><\/li>\n<li><strong>neuroendocrine regulation<\/strong><\/li>\n<li><strong>circadian rhythm<\/strong><\/li>\n<li><strong>pain modulation<\/strong><\/li>\n<li><strong>recovery physiology<\/strong><\/li>\n<li><strong>autonomic nervous system function<\/strong><\/li>\n<\/ul>\n<p>Unlike sedative compounds, DSIP has primarily been investigated as a peptide involved in the physiological regulation of sleep rather than direct sedation.<\/p>\n<h4><strong>How DSIP works<\/strong><\/h4>\n<p>The exact biological mechanism of DSIP remains uncertain, and no specific receptor has been conclusively identified.<\/p>\n<p>Current research has explored its relationship with:<\/p>\n<p><strong>Sleep physiology<\/strong><\/p>\n<p>DSIP has been investigated for its influence on sleep architecture, particularly slow-wave (delta) sleep, although published findings have been mixed across different studies.<\/p>\n<p><strong>Stress regulation<\/strong><\/p>\n<p>Researchers have explored potential interactions between DSIP and the hypothalamic-pituitary-adrenal (HPA) axis, examining its possible role in physiological responses to stress.<\/p>\n<p><strong>Neuroendocrine signalling<\/strong><\/p>\n<p>Published studies have investigated possible effects on hormone regulation, circadian biology and central nervous system function.<\/p>\n<p><strong>Recovery research<\/strong><\/p>\n<p>Because restorative sleep plays a central role in recovery, DSIP has also been investigated in studies examining physical recovery, stress resilience and fatigue.<\/p>\n<h4><strong>Why DSIP remains relevant in sleep research<\/strong><\/h4>\n<p>DSIP occupies a unique position among research peptides.<\/p>\n<p>Unlike newer compounds that primarily target growth hormone secretion or metabolic pathways, DSIP was developed specifically to investigate the biological mechanisms underlying sleep itself.<\/p>\n<p>Although modern evidence remains limited and sometimes inconsistent, DSIP continues to attract scientific interest because of its potential role in <strong>regulating natural sleep architecture rather than producing pharmacological sedation<\/strong>.<\/p>\n<hr \/>\n<h4><strong>Lidsk\u00fd a preklinick\u00fd v\u00fdzkum<\/strong><\/h4>\n<p>DSIP has been investigated in laboratory models and human studies for more than forty years.<\/p>\n<p>Published research includes sleep physiology, insomnia, stress biology, pain, opioid withdrawal and neuroendocrine regulation. While early findings generated considerable interest, subsequent studies have produced mixed results, and further research is needed to clarify its physiological role and therapeutic potential.<\/p>\n<h4><strong>How DSIP differs from related peptides<\/strong><\/h4>\n<table style=\"height: 150px;\" width=\"950\">\n<thead>\n<tr>\n<th>Research objective<\/th>\n<th>Recommended peptide<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Sleep physiology &amp; recovery research<\/strong><\/td>\n<td><strong>DSIP<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Growth hormone &amp; sleep research<\/strong><\/td>\n<td><strong><a href=\"https:\/\/life-peptide.com\/cs\/product\/ipamorelin-5-mg\/\">Ipamorelin<\/a> \/ <a href=\"https:\/\/life-peptide.com\/cs\/product\/cjc-1295-no-dac\/\">CJC-1295 bez DAC<\/a><\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Stress &amp; mitochondrial metabolism<\/strong><\/td>\n<td><a href=\"https:\/\/life-peptide.com\/cs\/product\/mots-c-10-mg\/\"><strong>MOTS-c<\/strong><\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Cognitive performance<\/strong><\/td>\n<td><a href=\"https:\/\/life-peptide.com\/cs\/product\/semax-5-mg\/\"><strong>Semax<\/strong><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Unlike growth hormone secretagogues, DSIP is investigated primarily for sleep physiology and neuroendocrine regulation, rather than stimulation of the GH axis.<\/p>\n<h4><strong>Publikovan\u00e9 bezpe\u010dnostn\u00ed poznatky<\/strong><\/h4>\n<p>Published human studies generally reported <strong>good short-term tolerability<\/strong>, although the overall clinical evidence remains limited. The most significant limitation of DSIP research is not safety, but inconsistency of efficacy across studies. Current evidence does not yet fully explain its mechanism of action or identify which populations may respond most consistently.<\/p>\n<hr \/>\n<p><strong>Vlastnosti produktu<\/strong><\/p>\n<p>Aplikace: laboratorn\u00ed a analytick\u00fd v\u00fdzkum<br \/>\nPou\u017eit\u00ed omezen\u00e9: nen\u00ed ur\u010deno k lidsk\u00e9 spot\u0159eb\u011b; pro l\u00e9ka\u0159sk\u00e9, veterin\u00e1rn\u00ed ani kosmetick\u00e9 pou\u017eit\u00ed<br \/>\nVyrobeno v za\u0159\u00edzen\u00edch spl\u0148uj\u00edc\u00edch spr\u00e1vnou v\u00fdrobn\u00ed praxi (GMP) za p\u0159\u00edsn\u00fdch protokol\u016f kontroly kvality.<br \/>\nKa\u017ed\u00e1 \u0161ar\u017ee je po v\u00fdrob\u011b pe\u010dliv\u011b laboratorn\u011b testov\u00e1na (Certifik\u00e1t o anal\u00fdze najdete pod obr\u00e1zky produkt\u016f).<br \/>\nLyofilizov\u00e1no (su\u0161eno mrazem) pro maxim\u00e1ln\u00ed stabilitu a prodlou\u017eenou trvanlivost.<br \/>\nUzav\u0159eno ve steriln\u00edch lahvi\u010dk\u00e1ch, p\u0159ipraveno k rekonstituci.<br \/>\nPurity: \u226598.5% (HPLC-tested)<br \/>\nAppearance: Lyophilized white\/off-white powder<br \/>\nMolekul\u00e1rn\u00ed vzorec: C<sub>35<\/sub>H<sub>48<\/sub>N<sub>10<\/sub>O<sub>15<\/sub><br \/>\nMolecular weight: 848.33<br \/>\nSequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu<\/p>\n<p><strong>\u00dalo\u017ei\u0161t\u011b<\/strong>Neotev\u0159en\u00e9 lyofilizovan\u00e9 lahvi\u010dky jsou nejl\u00e9pe skladov\u00e1ny <strong>chlazen\u00e9 p\u0159i 2\u20138 \u00b0C<\/strong>, co\u017e je metoda skladov\u00e1n\u00ed potvrzen\u00e1 na\u0161\u00edm v\u00fdrobn\u00edm partnerem a vhodn\u00e1 a\u017e po dobu 24 m\u011bs\u00edc\u016f. Preferuje se chlazen\u00ed, proto\u017ee minimalizuje zbyte\u010dn\u00e9 cykly zmrazov\u00e1n\u00ed a rozmrazov\u00e1n\u00ed b\u011bhem b\u011b\u017en\u00e9 manipulace. Pokud je vy\u017eadov\u00e1no podstatn\u011b del\u0161\u00ed skladov\u00e1n\u00ed, lze zmrazen\u00e9 uchov\u00e1vat i neotev\u0159en\u00e9 lyofilizovan\u00e9 lahvi\u010dky. Po rekonstituci v\u017edy skladujte p\u0159i 2\u20138 \u00b0C a nezmrazujte.<\/p>\n<h4><strong>Rekonstituce a manipulace<\/strong><\/h4>\n<p>DSIP is supplied as a lyophilised vial and should be handled using standard peptide reconstitution procedures appropriate to the research setting. Must be reconstituted with <a href=\"https:\/\/life-peptide.com\/cs\/product\/bac-10-ml\/\">bakteriostatick\u00e1 voda<\/a> p\u0159ed pou\u017eit\u00edm. Pro zachov\u00e1n\u00ed struktur\u00e1ln\u00ed integrity p\u0159idejte zvolen\u00e9 rozpou\u0161t\u011bdlo pomalu po vnit\u0159n\u00ed st\u011bn\u011b lahvi\u010dky nam\u00edsto p\u0159\u00edmo na peptidov\u00fd pr\u00e1\u0161ek a vyhn\u011bte se prudk\u00e9mu prot\u0159ep\u00e1v\u00e1n\u00ed. Jemn\u00e9 krou\u017een\u00ed je obecn\u011b dosta\u010duj\u00edc\u00ed, jakmile se peptid zcela rozpust\u00ed. Standardn\u00ed laboratorn\u00ed postupy zahrnuj\u00ed tak\u00e9 ponech\u00e1n\u00ed chlazen\u00fdch lahvi\u010dek dos\u00e1hnout pokojov\u00e9 teploty p\u0159ed rekonstituc\u00ed, aby se minimalizovala kondenzace uvnit\u0159 lahvi\u010dky.<\/p>\n<p>Pro dal\u0161\u00ed pokyny k v\u00fdb\u011bru rozpou\u0161t\u011bdla, pl\u00e1nov\u00e1n\u00ed koncentrac\u00ed a skladov\u00e1n\u00ed viz \u00fapln\u00e9 <a href=\"https:\/\/life-peptide.com\/cs\/reconstitution-of-peptides\/\">Pr\u016fvodce rekonstituc\u00ed peptid\u016f<\/a> a <a href=\"https:\/\/life-peptide.com\/cs\/calculator\/\">Kalkula\u010dka rekonstituce<\/a>.<\/p>\n<hr \/>\n<h4><strong>Vybran\u00e9 v\u00fdzkumn\u00e9 reference<\/strong><\/h4>\n<ul>\n<li>Graf MV, Kastin AJ. <em>Delta Sleep-Inducing Peptide (DSIP): A Review, Neuroscience &amp; Biobehavioral Reviews,<\/em> 1984<\/li>\n<\/ul>\n<p>The landmark review summarising the discovery, biological distribution and early experimental findings relating to DSIP.<\/p>\n<ul>\n<li>Graf MV, Kastin AJ. <em>Delta Sleep-Inducing Peptide (DSIP): An Update, Peptides<\/em>, 1986<\/li>\n<\/ul>\n<p>An expanded review covering sleep, stress, pain, withdrawal and neuroendocrine research published after the initial wave of DSIP investigations.<\/p>\n<ul>\n<li>Schoenenberger GA, et al. <em>The Delta Sleep-Inducing Peptide (DSIP): Comparative Properties of the Original and Synthetic Nonapeptide, Experientia,<\/em> 1977<\/li>\n<\/ul>\n<p>The original publication describing synthetic DSIP and confirming its biological similarity to the naturally isolated peptide.<\/p>\n<ul>\n<li>Kastin AJ. <em>Delta Sleep-Inducing Peptide: Historical Perspectives and Future Directions, Various review publications<\/em>.<\/li>\n<\/ul>\n<hr \/>\n<h4><strong>\u010casto kladen\u00e9 ot\u00e1zky<\/strong><\/h4>\n<p><strong>What is DSIP?<\/strong><\/p>\n<p>DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide first identified during sleep research in the 1970s. It is widely investigated for sleep physiology, stress regulation and neuroendocrine signalling.<\/p>\n<p><strong>Why is DSIP associated with sleep research?<\/strong><\/p>\n<p>DSIP was originally isolated because of its potential relationship with slow-wave (delta) sleep. Since then, published research has investigated its role in sleep architecture, although results have been mixed and its precise biological mechanism remains uncertain.<\/p>\n<p><strong>Is DSIP a sedative?<\/strong><\/p>\n<p>No. Published research generally investigates DSIP as a regulator of physiological sleep processes rather than as a direct sedative. This distinguishes it from compounds that induce sleep through pharmacological sedation.<\/p>\n<p><strong>What research areas commonly investigate DSIP?<\/strong><\/p>\n<p>Current research includes sleep physiology, stress biology, circadian rhythm, neuroendocrine signalling, recovery, pain modulation and autonomic nervous system function.<\/p>\n<p><strong>How does DSIP differ from GH secretagogues?<\/strong><\/p>\n<p>DSIP is investigated primarily for sleep regulation and neuroendocrine physiology, whereas peptides such as Ipamorelin, GHRP-2 or CJC-1295 primarily investigate growth hormone secretion through the GH axis.<\/p>\n<p><strong>Why is DSIP still researched despite mixed results?<\/strong><\/p>\n<p>Although clinical findings have not always been consistent, DSIP remains one of the few peptides developed specifically to investigate natural sleep regulation. Its unique history and broad physiological distribution continue to make it an interesting subject for sleep and neuroendocrine research.<\/p>\n<p><strong>Can I buy DSIP in Europe?<\/strong><\/p>\n<p>Yes. We ship DSIP to most European countries using reliable courier services. Available shipping methods and delivery times are shown during checkout based on your destination.<\/p>\n<p><strong>Je tento produkt ur\u010den k lidsk\u00e9mu pou\u017eit\u00ed?<\/strong><\/p>\n<p>No. DSIP supplied by LIFE Peptide is provided strictly for laboratory and analytical research. It is not intended for human consumption, diagnosis, treatment or prevention of disease. Any discussion of published studies summarises the current scientific literature relating to the DSIP molecule rather than the intended use of this product.<\/p>\n<hr \/>\n<h4><strong>Souvisej\u00edc\u00ed v\u00fdzkumn\u00fd kontext<\/strong><\/h4>\n<p>DSIP is frequently discussed alongside other research peptides that investigate<strong> sleep, recovery, stress adaptation and cognitive function<\/strong>. Although these peptides target different biological pathways, researchers often compare them depending on the physiological system under investigation.<\/p>\n<p><a href=\"https:\/\/life-peptide.com\/cs\/product\/semax-5-mg\/\"><strong>Semax<\/strong> <\/a>\u2013 investigated primarily for cognitive performance, neuroprotection and neuroplasticity research.<br \/>\n<a href=\"https:\/\/life-peptide.com\/cs\/product\/selank-5-mg\/\"><strong>Selank<\/strong> <\/a>\u2013 studied in relation to stress responses, anxiety-related behaviour and neuroendocrine regulation.<br \/>\n<a href=\"https:\/\/life-peptide.com\/cs\/product\/mots-c-10-mg\/\"><strong>MOTS-c<\/strong><\/a> \u2013 focuses on mitochondrial metabolism, exercise adaptation and cellular energy homeostasis rather than sleep itself.<br \/>\n<a href=\"https:\/\/life-peptide.com\/cs\/product\/ipamorelin-5-mg\/\"><strong>Ipamorelin<\/strong> <\/a>a <a href=\"https:\/\/life-peptide.com\/cs\/product\/cjc-1295-no-dac\/\"><strong>CJC-1295 bez DAC<\/strong><\/a> \u2013 growth hormone secretagogues commonly investigated in research on recovery, body composition and the GH\/IGF-1 axis.<br \/>\n<a href=\"https:\/\/life-peptide.com\/cs\/product\/kpv-5-mg\/\"><strong>KPV<\/strong> <\/a>\u2013 investigated for immune regulation and inflammatory signalling, representing a different approach to recovery research.<\/p>\n<p>Although these peptides are sometimes mentioned together in recovery-focused discussions, they investigate distinct physiological systems and should not be considered interchangeable research compounds.<\/p>\n<p>Proch\u00e1zet v\u0161echny slou\u010deniny v <a href=\"\/cs\/category\/cognitive-research-peptides\/\">Cognitive research category<\/a>.<\/p>\n<hr \/>\n<p><strong>NOTE: <\/strong>This is for educational reference only and does not constitute medical advice.<\/p>\n<p><strong>Disclaimer:<\/strong><br \/>\nTento produkt je prod\u00e1v\u00e1n pouze pro v\u00fdzkumn\u00e9 \u00fa\u010dely. Nen\u00ed ur\u010den k diagnostice, l\u00e9\u010db\u011b, vyl\u00e9\u010den\u00ed nebo prevenci jak\u00fdchkoli onemocn\u011bn\u00ed. Kupuj\u00edc\u00ed p\u0159eb\u00edr\u00e1 plnou odpov\u011bdnost za \u0159\u00e1dnou manipulaci a pou\u017eit\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>DSIP (Delta Sleep-Inducing Peptide) 5 mg is a research-grade neuropeptide supplied in lyophilised form for laboratory use. It is one of the best-known research peptides for sleep physiology, stress adaptation and neuroendocrine regulation, with more than four decades of published scientific investigation.<\/p>\n<p>||<\/p>\n<p>Purity \u226598.5% | Buy in Europe with shipping from \u20ac5 | Free shipping upgrades available | Card payments accepted<\/p>","protected":false},"featured_media":202,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[22],"product_tag":[335,336,331,330,334,282,332,337,333,307],"class_list":["post-196","product","type-product","status-publish","has-post-thumbnail","product_cat-cognitive-research-peptides","product_tag-circadian-rhythm","product_tag-deep-sleep","product_tag-delta-sleep-inducing-peptide","product_tag-dsip-peptide","product_tag-neuroendocrine-peptide","product_tag-recovery-peptide","product_tag-sleep-peptide","product_tag-sleep-physiology","product_tag-sleep-research","product_tag-stress-research","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/product\/196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/comments?post=196"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/media\/202"}],"wp:attachment":[{"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/media?parent=196"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/product_brand?post=196"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/product_cat?post=196"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/life-peptide.com\/cs\/wp-json\/wp\/v2\/product_tag?post=196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}