DSIP
DSIP is a research peptide studied in laboratory settings for its potential role in sleep-related pathways, neurobiological signalling, stress-response mechanisms, and circadian regulation. Supplied with batch-specific Certificate of Analysis documentation for scientific research use only.
About DSIP
DSIP, or Delta Sleep-Inducing Peptide, is a naturally produced neuropeptide discovered through research on sleep and neuroendocrine systems. After its discovery, DSIP has emerged as an essential research peptide that is used in studying signaling in the central nervous system, circadian rhythms, the endocrine system, and other physiological aspects under lab conditions.
In experiments, DSIP is used in preclinical and in vitro studies to study the neurobiology of sleep, hypothalamus signaling, pituitary hormones regulation, circadian rhythms physiology, neurotransmitters functions, stress responses, neuroendocrine signaling, and peptide receptors biology. The experimental studies have examined the relationship between DSIP and sleep structure, hormone secretion, neuronal signaling, and central nervous system control. Yet, there is no more than limited experimental data about DSIP in laboratory and animal studies, and further research is needed.
While therapeutic medicines require approval for use in humans and animals, DSIP from PeptidesX is designed to be used solely for the purpose of laboratory study and research. All batches come with a Certificate of Analysis that states the identity, purity, and analysis information of the product. Researcher’s need to go through the Certificate of Analysis before starting the experiment.
All products of DSIP from PeptidesX are solely designed to be used for research use only.
Research Areas
- Sleep physiology and circadian rhythms studies
- Neuroendocrine signaling studies
- Hypothalamus-pituitary axis studies
- CNS signaling studies
- Neurotransmitter pathway studies
- Stress response and hormonal regulation studies
- Peptide receptor biology studies
- Healthy aging and neurophysiology studies
DSIP in Experimental Research
DSIP remains an area of interest in experimental neurobiology because researchers can investigate its relationship with several interconnected physiological signalling systems. Laboratory studies have explored sleep-associated pathways, circadian biology, hypothalamic signalling, neuroendocrine regulation, and cellular responses linked with physiological stress.
For controlled research, the characteristics and traceability of experimental material are important considerations. DSIP supplied by PeptidesX is strictly designated for research use only (RUO). Batch-specific Certificate of Analysis (COA) documentation provides analytical information relevant to identity and purity. Researchers can also review PeptidesX resources covering HPLC and LC-MS testing, third-party analysis, and COA interpretation when assessing research materials.
Scientific References
- Schneider-Helmert D. – Effects of delta sleep-inducing peptide on sleep of chronic insomniac patients: a double-blind study. Neuropsychobiology. This controlled study investigated DSIP in 16 people with chronic insomnia and assessed objective and subjective sleep parameters.
- Schneider-Helmert D, Gnirss F, Monnier M, et al. – Acute and delayed effects of DSIP (delta sleep-inducing peptide) on human sleep behavior. International Journal of Clinical Pharmacology, Therapy and Toxicology. A double-blind crossover study examining acute and subsequent-night effects of synthetic DSIP in healthy volunteers.pubmed.ncbi.nlm.nih.gov ↗
- Schneider-Helmert D, Schoenenberger GA. – Effects of DSIP in man: multifunctional psychophysiological properties besides induction of natural sleep. Neuropsychobiology. Reports findings from several human studies using psychophysiological testing and sleep recordings.pubmed.ncbi.nlm.nih.gov ↗
- Schneider-Helmert D. – Efficacy of DSIP to normalize sleep in middle-aged and elderly chronic insomniacs. European Neurology. Examined immediate and follow-up sleep effects of repeated DSIP administration in 18 people with chronic psychophysiological insomnia.pubmed.ncbi.nlm.nih.gov ↗
- Schoenenberger GA. – Characterization, properties and multivariate functions of delta-sleep-inducing peptide (DSIP). European Neurology. Provides an overview of DSIP's isolation, characterisation and experimental biological properties.pubmed.ncbi.nlm.nih.gov ↗
- Schneider-Helmert D. – DSIP in insomnia. European Neurology. Summarises investigations of DSIP and sleep, including single and repeated administration studies.pubmed.ncbi.nlm.nih.gov ↗
⚠ Research Use Only.
All products supplied by PeptidesX are intended strictly for in-vitro laboratory and scientific research. Not for human consumption, medical use, veterinary use, or therapeutic application. Researchers are responsible for compliance with all applicable regulations in their jurisdiction.
Identity & Purity
HPLC / MS-UPLC| Test | Specification | Result |
| Appearance | White lyophilised powder | ✓ Conforms |
| HPLC Purity | ≥ 99% | 99% ✓ |
| MS Molecular Weight | Expected ± 0.5 Da | Confirmed ✓ |
| Amino Acid Analysis | Theoretical sequence | Confirmed ✓ |
| Water Content (KF) | ≤ 8.0% | 5.4% ✓ |
| Net Peptide Content | ≥ 85.0% | 90.8% ✓ |
Safety Testing
Endotoxin / Metals| Test | Specification | Result |
| Endotoxin (LAL) | ≤ 5 EU/mg | 0.9 EU/mg ✓ |
| Bioburden | ≤ 100 CFU/g | <10 CFU/g ✓ |
| Lead (Pb) | ≤ 10 ppm | <0.1 ppm ✓ |
| Arsenic (As) | ≤ 5 ppm | <0.1 ppm ✓ |
| Mercury (Hg) | ≤ 3 ppm | <0.1 ppm ✓ |
| Cadmium (Cd) | ≤ 5 ppm | <0.1 ppm ✓ |
Solubility: Water / Acetic acid. Mix gently by rolling — do not vortex.
Returns: Sealed, unopened vials may be returned within 14 days of receipt. Opened vials cannot be returned.
Delta sleep-inducing peptide (DSIP) is a naturally-occurring neuropeptide studied through laboratory research on sleep physiology, neuroendocrine signaling, circadian biology, and central nervous system function.
This substance has been discovered while carrying out research work on sleep physiology and delta wave sleep activity. The name of the substance indicates the circumstances of its discovery but does not indicate any proven efficacy of the substance.
Yes. DSIP is available at PeptidesX for scientific laboratory studies in the UK. This product is supplied for scientific research only and cannot be used for human and animal consumption.
Choose your desired DSIP product from the list of products available at PeptidesX and proceed with the online order process. The company supplies its products as research-use-only.
Every product batch is independently tested and provided with batch-specific documentation. Researchers are advised to look through the Certificate of Analysis of the purchased product.
Researchers study DSIP in order to have a greater insight into sleep physiology, circadian rhythm control, neuroendocrine signaling, hypothalamus, neurotransmitters, and central nervous system.
Research commonly focuses on sleep-related neurobiology, hormone regulation, stress physiology, hypothalamic signalling, pituitary function, circadian rhythm biology, and neuronal communication using laboratory and preclinical models.
DSIP is supplied as a lyophilised research peptide for laboratory investigation. Product specifications, purity information, and batch documentation are available on the corresponding product page.
Researchers should follow the storage instructions provided on the product label and Certificate of Analysis. Store the product under recommended laboratory conditions while protecting it from excessive heat, moisture, direct sunlight, and repeated temperature fluctuations.
Yes. Preclinical studies have investigated DSIP in relation to sleep regulation, circadian biology, and neuroendocrine function. These findings are limited to laboratory and animal research and should not be interpreted as evidence of safety or effectiveness in humans.
Yes. Researchers investigate DSIP in studies involving central nervous system signalling, hypothalamic function, circadian rhythm biology, neuroendocrine regulation, stress physiology, and peptide signalling pathways.
No. DSIP supplied by PeptidesX is an investigational research peptide intended exclusively for laboratory research. It is not supplied as a medicine, dietary supplement, or treatment for any medical condition.
Not at all! The DSIP product from PeptidesX can only be purchased for laboratory research. The results obtained through research conducted in the lab and on animals cannot prove that the product is safe and efficacious enough to use in humans.
Several delivery options for the UK are provided when placing your order. Delivery methods, time and fees will be clearly visible on our website.
The DSIP product is meant for universities, research labs, biotechnology firms, science organizations and researchers who perform their own research involving neurobiology and sleep physiology.