DS5
Also known as: Delta Sleep Inducing Peptide variant, DSIP variant, DS5 sleep peptide
DS5 is a synthetic variant of the delta sleep-inducing peptide (DSIP), a nonapeptide originally isolated from rabbit cerebrospinal fluid during slow-wave sleep. Like DSIP, DS5 is explored for sleep optimization, stress modulation, and circadian rhythm normalization, with proposed improvements in potency or stability over the parent molecule.
Half-Life
Estimated 30-60 minutes (peptide degradation)
Route
Subcutaneous, Intranasal (research)
Category
Sleep Optimization
Studies
50 references
Key Benefits
- Promotes delta-wave (deep) sleep and improves sleep quality
- May reduce sleep onset latency
- HPA axis modulation for stress reduction
- Non-addictive sleep support without tolerance development
- Potential circadian rhythm normalization
- Explored for insomnia, chronic stress, and PTSD-related sleep disturbance
Mechanism of Action
DS5 and DSIP derivatives are believed to act via modulation of hypothalamic-pituitary-adrenal (HPA) axis activity, reduction of corticotropin-releasing hormone (CRH) release, and facilitation of delta-wave (slow-wave) sleep architecture. They may interact with GABA-B receptors and opioid receptor subtypes to promote sleep onset and deepen sleep quality. The exact receptor binding profile of DS5 variants is not fully characterized.
Dosing Protocols
Sleep Optimization (Research)
- Dose
- 200-500 mcg per dose
- Frequency
- Once nightly
- Timing
- 30-60 minutes before desired sleep time
- Cycle
- 2-4 weeks; cycle with breaks
Research compound. Often used as part of sleep peptide stacks. May be combined with DSIP for additive slow-wave sleep support. Use the minimum effective dose. Not commercially available as a drug; found via research peptide vendors.
Calculate your draw volume
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Side Effects
- Generally well-tolerated in research subjects
- Possible morning grogginess at higher doses
- Mild blood pressure fluctuations reported with DSIP
- Limited human safety data for DS5 specifically
Contraindications
Insufficient human data for definitive contraindicationsCaution with hypotension (blood pressure lowering reported with DSIP class)Pregnancy and breastfeeding: insufficient data
Storage
Lyophilized: store at -20 degrees C. Reconstituted: refrigerate at 2-8 degrees C and use within 30 days. Protect from light.
Clinical Research
- 1.An antibody uniquely binding short 2'-O-methyl RNA oligonucleotide duplexes: formation and recognition of target duplexes on cell surfaces
Dunn IS, Lawler MM, Fagundes L, Simoes Junior M, Mangold A, Rinaldi D et al. · Frontiers in immunology · 2025PubMed Verified
- 2.The PI4K2A-OSBPL6/ORP6-PS axis mediates lysosomal membrane repair to restore neuronal lipid homeostasis and promote neuronal survival after spinal cord injury
Zhang H, Kang Y, Zhao T, Huang D, Hu X, Di J et al. · Autophagy · 2026PubMed Verified
- 3.Deep learning-guided engineering of pectinase for enhanced catalytic performance in tobacco processing
Zheng X, Liu T, Qu X, Sun Z, Zhao X, Xu Y et al. · Bioresource technology · 2026PubMed Verified
- 4.Thermal resilience of olive accessions evaluated through pomological traits, lipid profile, and gene expression responses
Hoveizeh NF, Gholami R, Zahedi SM, Kadkhodaei S, Alavipour S, Woodrow P et al. · BMC plant biology · 2025PubMed Verified
- 5.In silico design of novel precision vaccine targeting sclerostin epitopes for osteoporosis prevention and treatment
Luo J, Wu T, Guan B, Li L, Yang Z, Tao H · Frontiers in immunology · 2025PubMed Verified
- 6.Advanced stage classical Hodgkin lymphoma patients with a positive interim-PET (PET-2) Deauville score 5 after 2 ABVD cycles: a pooled analysis of three multicenter trials
Viviani S, Pavoni C, Barrington SF, Guerra L, Schöder H, Johnson P et al. · Blood cancer journal · 2025PubMed Verified
- 7.Radiotherapy With a 12-Gene Expression Assay for Ductal Carcinoma In Situ: A Randomized Clinical Trial
Khan SA, Romanoff J, Gatsonis C, Rahbar H, Carlos R, Badve S et al. · JAMA oncology · 2025RCTPubMed Verified
- 8.Cariology-Competency Teaching Among Latin American Dental Schools Implementing the Regional Curriculum Framework: COM-B Analysis
Sanabria A, Cortes A, Jácome-Liévano S, Avila V, Abreu-Placeres N, Aránguiz V et al. · European journal of dental education : official journal of the Association for Dental Education in Europe · 2025PubMed Verified
- 9.18F-FDG PET/CT Radiomics for Predicting Therapy Response in Primary Mediastinal B-Cell Lymphoma: A Bi-Centric Pilot Study
Esposito F, Manco L, Urso L, Adamantiadis S, Scribano G, De Marchi L et al. · Cancers · 2025PubMed Verified
- 10.The pathogen of SFTS: Bandavirus dabieense phylogenetic analysis and development of an online tool for genotyping
Wu H, Liu T, Mu Y, Zhang R, Yuan J, Xu Y et al. · Acta tropica · 2025PubMed Verified
- 11.Characterization and inhibition of hydrogen sulfide-producing bacteria from petroleum reservoirs subjected to alkali-surfactant-polymer flooding
Hao Q, Zhang Y, Shi R, Zhao J, Li G, Min J et al. · Bioresource technology · 2025PubMed Verified
- 12.Genetic parameters for direct and maternal genetic components of calving ease in Korean Holstein Cattle using animal models
Alam M, Lee JG, Dang CG, Lee SS, Lee SM, Seong HS et al. · Animal bioscience · 2024PubMed Verified
- 13.Caries lesions progression in adults: A prospective 2-year cohort study
Abdalla H, Allison PJ, Madathil SA, Veronneau JE, Pustavoitava N, Tikhonova S · Community dentistry and oral epidemiology · 2025PubMed Verified
- 14.Omission of Radiotherapy in Primary Mediastinal B-Cell Lymphoma: IELSG37 Trial Results
Martelli M, Ceriani L, Ciccone G, Ricardi U, Kriachok I, Botto B et al. · Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2024RCTPubMed Verified
- 15.sEMG-Based Robust Recognition of Grasping Postures with a Machine Learning Approach for Low-Cost Hand Control
Mora MC, García-Ortiz JV, Cerdá-Boluda J · Sensors (Basel, Switzerland) · 2024PubMed Verified
- 16.Beneficial endophytic fungi improve the yield and quality of Salvia miltiorrhiza by performing different ecological functions
Li X, Lin Y, Qin Y, Han G, Wang H, Yan Z · PeerJ · 2024PubMed Verified
- 17.Study on mechanical properties and acoustic emission characteristics of deep diorite under uniaxial compression
Liu KD, Zhou Y, Zhang XP, Fu SJ, Liu QS, Dong P et al. · Heliyon · 2024PubMed Verified
- 18.GMFB/AKT/TGF-β3 in Müller cells mediated early retinal degeneration in a streptozotocin-induced rat diabetes model
Zhu T, Li Y, Zhu L, Xu J, Feng Z, Chen H et al. · Glia · 2024PubMed Verified
- 19.A retrospective head-to-head comparison of the Lugano classification and PERCIST for FDG-PET/CT response assessment in diffuse large B-cell lymphoma
Nielsen NB, Gerke O, Nielsen AL, Juul-Jensen K, Larsen TS, Møller MB et al. · Clinical physiology and functional imaging · 2024PubMed Verified
- 20.Experimental Study on the Mechanical Properties and Acoustic Emission Characteristics of Different Bedding High-Rank Coals
Liu J, Yang D, Hu J, Yu B, Nie Z · ACS omega · 2023PubMed Verified
- 21.Resistance and genomic characterization of a plasmid pkh2101 harbouring erm(B) isolated from emerging fish pathogen Lactococcus garvieae serotype II in Japan
Akmal M, Akatsuka M, Nishiki I, Yoshida T · Journal of fish diseases · 2023PubMed Verified
- 22.Induction of Innate Inflammatory Pathways in the Corneal Epithelium in the Desiccating Stress Dry Eye Model
Yu Z, Yazdanpanah G, Alam J, de Paiva CS, Pflugfelder S · Investigative ophthalmology & visual science · 2023PubMed Verified
- 23.The Experimental Investigation on Mechanics and Damage Characteristics of the Aeolian Sand Paste-like Backfill Materials Based on Acoustic Emission
Shao X, Tian C, Li C, Fang Z, Zhao B, Xu B et al. · Materials (Basel, Switzerland) · 2022PubMed Verified
- 24.Characterization of redox and salinity-tolerant alkaline protease from Bacillus halotolerans strain DS5
Wen Y, Qiang J, Zhou G, Zhang X, Wang L, Shi Y · Frontiers in microbiology · 2022PubMed Verified
- 25.Positron emission tomography-imaging assessment for guiding strategy in patients with relapsed/refractory large B-cell lymphoma receiving CAR T cells
Galtier J, Vercellino L, Chartier L, Olivier P, Tabouret-Viaud C, Mesguich C et al. · Haematologica · 2023PubMed Verified
- 26.The use of oxygen reserve index in one-lung ventilation and its impact on peripheral oxygen saturation, perfusion index and, pleth variability index
Sagiroglu G, Baysal A, Karamustafaoglu YA · BMC anesthesiology · 2021PubMed Verified
- 27.Nitrogen removal characteristics and potential application of the heterotrophic nitrifying-aerobic denitrifying bacteria Pseudomonas mendocina S16 and Enterobacter cloacae DS'5 isolated from aquaculture wastewater ponds
Shu H, Sun H, Huang W, Zhao Y, Ma Y, Chen W et al. · Bioresource technology · 2022PubMed Verified
- 28.Imaging Features and Prognostic Value of FDG PET/CT in Patients with Intravascular Large B-Cell Lymphoma
Lim CH, Yoon SE, Kim WS, Lee KH, Kim SJ · Cancer management and research · 2021PubMed Verified
- 29.Predicting primary treatment failure using interim FDG-PET scanning in diffuse large B-cell lymphoma
Wight J, Wai SH, Shen E, Lee ST, Berlangieri S, Fancourt T et al. · European journal of haematology · 2021PubMed Verified
- 30.Optimal timing and criteria of interim PET in DLBCL: a comparative study of 1692 patients
Eertink JJ, Burggraaff CN, Heymans MW, Dührsen U, Hüttmann A, Schmitz C et al. · Blood advances · 2021PubMed Verified
- 31.Bacterial degradation of distillery wastewater pollutants and their metabolites characterization and its toxicity evaluation by using Caenorhabditis elegans as terrestrial test models
Chowdhary P, Sammi SR, Pandey R, Kaithwas G, Raj A, Singh J et al. · Chemosphere · 2020PubMed Verified
- 32.Is Telenursing an Effective Method to Control BMI and HbA1c in Illiterate Patients Aged 50 Years and Older With Type 2 Diabetes? A Randomized Controlled Clinical Trial
Shahsavari A, Bakhshandeh Bavarsad M · Journal of caring sciences · 2020PubMed Verified
- 33.FDG-PET/CT after two cycles of R-CHOP in DLBCL predicts complete remission but has limited value in identifying patients with poor outcome - final result of a UK National Cancer Research Institute prospective study
Mikhaeel NG, Cunningham D, Counsell N, McMillan A, Radford JA, Ardeshna KM et al. · British journal of haematology · 2021RCTPubMed Verified
- 34.One-electron oxidation of ds(5'-GGG-3') and ds(5'-G(8OG)G-3') and the nature of hole distribution: a density functional theory (DFT) study
Kumar A , Adhikary A , Sevilla MD , Close DM · Physical chemistry chemical physics : PCCP · 2020PubMed Verified
- 35.A Gene Expression-based Model to Predict Metabolic Response After Two Courses of ABVD in Hodgkin Lymphoma Patients
Luminari S, Donati B, Casali M, Valli R, Santi R, Puccini B et al. · Clinical cancer research : an official journal of the American Association for Cancer Research · 2020PubMed Verified
- 36.Persistent mediastinal FDG uptake on PET-CT after frontline therapy for Hodgkin lymphoma: biopsy, treat or observe?
Novo M, Nowakowski GS, Habermann TM, Witzig TE, Micallef IN, Johnston PB et al. · Leukemia & lymphoma · 2020PubMed Verified
- 37.Comparative transcriptomics of early petal development across four diverse species of Aquilegia reveal few genes consistently associated with nectar spur development
Ballerini ES, Kramer EM, Hodges SA · BMC genomics · 2019PubMed Verified
- 38.Monitoring Base-Specific Dynamics during Melting of DNA-Ligand Complexes Using Temperature-Jump Time-Resolved Infrared Spectroscopy
Fritzsch R, Greetham GM, Clark IP, Minnes L, Towrie M, Parker AW et al. · The journal of physical chemistry. B · 2019PubMed Verified
- 39.Activating KIRs on Educated NK Cells Support Downregulation of CD226 and Inefficient Tumor Immunosurveillance
Guillamón CF, Martínez-Sánchez MV, Gimeno L, Campillo JA, Server-Pastor G, Martínez-García J et al. · Cancer immunology research · 2019PubMed Verified
- 40.Bacillus sp. Acting as Dual Role for Corrosion Induction and Corrosion Inhibition with Carbon Steel (CS)
Karn SK, Fang G, Duan J · Frontiers in microbiology · 2017PubMed Verified
- 41.Rapid identification of apple (Malus×domestica Borkh.) S alleles using sequencing-based DNA marker APPLid
Kasajima I, Kikuchi T, Yoshikawa N · Plant biotechnology (Tokyo, Japan) · 2017PubMed Verified
- 42.Positron Emission Tomography/Computed Tomography Assessment After Immunochemotherapy and Irradiation Using the Lugano Classification Criteria in the IELSG-26 Study of Primary Mediastinal B-Cell Lymphoma
Ceriani L, Martelli M, Gospodarowicz MK, Ricardi U, Ferreri AJ, Chiappella A et al. · International journal of radiation oncology, biology, physics · 2017PubMed Verified
- 43.Comparative Analytical Performance of Various HbA1c Assays in Iran
Razi F, Rahnamaye Farzami M, Ebrahimi SA, Nahid M, Bigdeli MG, Sheidaei A et al. · Archives of Iranian medicine · 2016PubMed Verified
- 44.Effect of Feeding Diets Combining Whole-Grain Paddy Rice and High Levels of Fat on Broiler Chicken Growth
Nanto F, Ito C, Kikusato M, Toyomizu M · The journal of poultry science · 2016PubMed Verified
- 45.Microbial keratitis following accelerated corneal collagen cross-linking
Kodavoor SK, Sarwate NJ, Ramamurhy D · Oman journal of ophthalmology · 2015Case ReportPubMed Verified
- 46.Effect of the different assays of HbA1c on diabetic patients monitoring
Razi F, Nasli Esfahani E, Rahnamaye Farzami M, Tootee A, Qorbani M, Ebrahimi SA et al. · Journal of diabetes and metabolic disorders · 2015PubMed Verified
- 47.Disease insights through cross-species phenotype comparisons
Haendel MA, Vasilevsky N, Brush M, Hochheiser HS, Jacobsen J, Oellrich A et al. · Mammalian genome : official journal of the International Mammalian Genome Society · 2015ReviewPubMed Verified
- 48.Macrophage Phenotype in the Ocular Surface of Experimental Murine Dry Eye Disease
You IC, Coursey TG, Bian F, Barbosa FL, de Paiva CS, Pflugfelder SC · Archivum immunologiae et therapiae experimentalis · 2015PubMed Verified
- 49.Using association rule mining to determine promising secondary phenotyping hypotheses
Oellrich A, Jacobsen J, Papatheodorou I, Sanger Mouse Genetics Project, Smedley D · Bioinformatics (Oxford, England) · 2014PubMed Verified
- 50.Dendritic cell-derived thrombospondin-1 is critical for the generation of the ocular surface Th17 response to desiccating stress
Gandhi NB, Su Z, Zhang X, Volpe EA, Pelegrino FS, Rahman SA et al. · Journal of leukocyte biology · 2013PubMed Verified
Medical disclaimer: This information is for educational purposes only and does not constitute medical advice. Many compounds listed are research chemicals not approved for human use. Always consult a qualified healthcare professional before starting any protocol.
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