dsip dsip

DSIP has long been described as an endogenous sleep-promoting substance that participates in the physiological regulation of sleep architecture. It exerts a distinctive modulating effect on sleep and wakefulness cycles, with substantially stronger observable biological activity under pathological or experimental conditions characterised by disrupted sleep homeostasis. Notably, its functional influence exhibits clear state-dependence: pronounced regulatory effects emerge when sleep stability is compromised, whereas only minimal, often negligible changes to sleep-wake patterns can be detected in healthy subjects who maintain regular, undisturbed sleep and do not suffer from insomnia or other sleep disorders.

Delta sleep-inducing peptide, commonly abbreviated DSIP, is classified as a neuropeptide. In classic animal experiments, direct infusion of this molecule into the mesodiencephalic ventricle of recipient rabbits reliably triggers the appearance of sleep spindle oscillations and enhanced delta-wave activity on electroencephalography (EEG), accompanied by a marked reduction in spontaneous motor activities, markers indicative of entry into deep slow-wave sleep. Its verified amino acid sequence reads TRP-ALA-GLY-GLY-ASP-ALA-SER-GLY-GLU. Nevertheless, after decades of targeted genomic research, the specific gene responsible for encoding this peptide has not yet been identified . This unresolved molecular origin raises serious questions regarding the authentic existence of this peptide as a native endogenous signalling molecule in living organisms, fueling ongoing academic debate over whether DSIP is a naturally occurring neuropeptide or merely an artefact derived from early isolation procedures.

  We are a chemical manufacturer integrating production, processing and export, mainly dealing in pharmaceutical intermediates and various industrial chemicals. Since its establishment, the company adheres to the spirit of "integrity management, strict quality control, customer first", and has won praise from customers at home and abroad.  We have also established an excellent professional sales team with rich international marketing experience, able to efficiently provide a range of products and professional services.

    With synthetic biology platform technology as the core, it conducts innovative research and development, mainly engaged in the research and development of recombinantly expressed pharmaceutical peptides and proteins. Its products include innovative drugs, APIs, pharmaceutical and green synthetic industrial enzymes, functional peptides and protein products, etc.

    At present, our company has realized the industrialization of a variety of biosynthetic peptide products and has obtained cooperation orders from many well-known domestic and foreign pharmaceutical companies.

1. How to make an order?
Send me message and let me know what you need with quantity , then i will calculate to you.

2. What's the lead time and shipping ways?
We will delivery to the package by USPS, FEDEX, DHL paket and UPS express to you after receive your payment, it would take around 5-15 days to your address.

3. How do I keep the peptides when i receive it ?
Peptides in the form of lyophilized powder can be transported at room temperature by vacuum packaging, while polypeptides in the dissolved state need to be refrigerated at 2°C - 8°C. For long-term storage, peptides should be stored in the form of lyophilized powder store at -20°C or -80°C in a sealed container with desiccant, which can avoid the degradation of peptides to the greatest extent.

 Our company has independent factories, mass production of pharmaceutical intermediates, organic intermediates and other raw materials, widely used in medicine, health care products, cosmetics, nutritional supplements, food additives and other fields.

    Our company adheres to the business philosophy of integrity and cooperation. scientific innovation and service first.With absolute quality assurance as the purpose and perfect service system as the basis, our company provides efficient and satisfactory consulting services, sincerely welcomes your business inquiries,and looks forward to working with you to create a new future.

Key Products:
    Our primary focus encompasses a range of products, including weight loss peptides, medicinal peptides, cosmetic peptides, and customized peptides. Notable among our weight loss peptide offerings are Semaglutide, Tirzepatide, Retatrutide, and others.