DSIP peptide for sale

What’s DSIP?


Delta sleep-inducing peptide (DSIP) is an endogenous neuropeptide that crosses the blood-brain barrier. It is associated with natural sleep and enhanced ectroencephalogram (EEG) delta rhythm.


Delta sleep-inducing peptide (DSIP) was isolated from the extracorporeal dislysate of cerebral venous blood in rabbits which was subjected to hypnogenic electrical stimulation1.


The analogs of Delta sleep-inducing peptide (DSIP) are synthesized by modification of the primary sequence of the nanopeptide. Phosphorylated DSIP, DSIP (1-4), DSIP (1-8), DSIP (2-8), DSIP (2-9), DSIP (5-9) etc are some of the analogs of DSIP.

Structural Characteristics

The primary amino acid sequence of DSIP is Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu with molecular weight of 848.8 kDa.

Mode of Action

The action of Delta sleep-inducing peptide (DSIP) is mediated by the activation of the serotoninergic system of the brain. It increases the activity of monoamine oxidase type A in mitochondria, the substrate of this enzyme is serotonin2.


Delta sleep-inducing peptide (DSIP) has several physiological effects in addition to its ability to promote sleep in animals. It is also involved in neuroendocrine regulation and release of anterior pituitary hormones. In rodents and humans, Delta sleep-inducing peptide (DSIP) influence in the secretion of adrenocorticotropic hormone (ACTH), luteinizing hormone (LH) and growth hormone (GH) 3,4,5,6. It also plays a role in the regulation of the circadian rhythms7.


DSIP peptide for sale

You can purchase a USA made DSIP 5mg peptide , in its purest form Giant Lab online store. Produced from above 99% pure raw powder,DSIP peptide is top quality sold by Giant Lab. Giant Lab is a famous and with more than 5 years experience of peptides promotion legit-able company. With headquarter based in USA, New York, Giant Lab guarantee shipping for every single order.

However, THIS PRODUCT IS INTENDED AS A RESEARCH PEPTIDE ONLY. This designation allows the use of research peptides strictly for in vitro testing and laboratory experimentation only. Bodily introduction of any kind into humans or animals is strictly forbidden by law.

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 1.Schoenenberger GA, Monnier M (1977). Characterization of a delta-electroencephalogram (-sleep)-inducing peptide. ProcNatl Acad Sci USA, 74, 1282-1286.

2.Shandra AA, Godlevskii LS, Brusentsov AI, Petrashevich VP, Vast’yanov RS, Nikel B, Mikhaleva II (1998). Delta-sleep-inducing peptide and its analogs and the serotoninergic system in the development of anticonvulsive influences.Neurosci  Behav Physiol., 28(5), 521-526.

3.Sahu A, Klara SP (1987). Delta sleep inducing peptide (DSIP) stimulates LH releasein steroid-primed ovariectomized rats. Life Sci, 12, 1201-1206.

4.Okajima T, Hertting G (1986). Delta-sleep inducing peptide (DSIP) inhibited CRF-induced ACTH secretion from rat anterior pituitary gland in vitro. Horm Metab Res., 18, 497-499.

5.Iyer KS, McCann SM (1987) Delta sleep inducing peptide (DSIP) stimulates growthhormone (GH) release in the rat by hypothalamic and pituitary actions. Peptides, 8, 45-48

6.Chiodera P, Volpi R, Caapretti L, Giacalone G, Caffari G, Davoli C, Nigro E,Coiro V (1994) Different effects of delta-sleep-inducing peptide on arginine-vasopressin and ACTH secretion in normal men. Horm Res., 42, 267-272

  1. S. Inoue, M. Kimura-Takeuchi, V. M. Koval’zon,V. N. Kalikhevich, and S. I. Churkina(1994). Effects of Some DSIP Peptide Analogs on Rat Sleep for Intraventricular Infusion. Bulletin of Experimental Biology and Medicine., 117, 58.




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