For research use only. Not for human consumption.
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring 9-amino-acid neuropeptide studied for its potential role in regulating sleep cycles, circadian rhythms, and stress-related endocrine activity. It remains investigational, with its precise biological function not fully established.
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DSIP is a naturally occurring neuropeptide first isolated in 1977 and studied for its potential role in regulating sleep cycles, stress response, and endocrine function. It is a short peptide composed of 9 amino acids and has been investigated primarily in experimental and research settings.
Full Name: Delta Sleep-Inducing Peptide
Type: Neuropeptide
Length: 9 amino acids
Molecular Weight: ~848 Da
Structure: Small, linear peptide
Although its exact physiological role remains debated, DSIP has been studied for:
Modulation of slow-wave (delta) sleep
Influence on circadian rhythms
Interaction with the hypothalamic–pituitary axis
Potential effects on stress regulation
Possible impact on pain perception
May influence neurotransmitter systems
Investigated for interactions with:
GABAergic pathways
Cortisol regulation
Growth hormone secretion patterns
Mechanism of action remains not fully established
Sleep regulation models
Stress and endocrine response studies
Circadian rhythm research
Experimental neurobiology investigations
Not FDA-approved for therapeutic use
Limited and mixed human data
Primarily used in experimental or research settings
DSIP is a short neuropeptide studied for its potential involvement in sleep regulation, endocrine signaling, and stress modulation. While early research suggested sleep-promoting properties, its precise physiological role remains under investigation.
Type: Short neuropeptide
Length: 9 amino acids (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu)
Molecular Weight: ~848 Da
Structure: Linear peptide, small and water-soluble
Solubility: Highly soluble in water
Charge: Amphipathic, contains acidic (Asp, Glu) and polar residues
Stability: Sensitive to heat, light, and enzymatic degradation
Lyophilized Form: Stable when refrigerated (2–8 °C)
Exact receptor mechanisms are not fully established
Proposed to interact with:
Hypothalamic pathways regulating sleep
Neurotransmitter systems (e.g., GABAergic signaling)
May influence:
Delta (slow-wave) sleep induction
Cortisol and stress hormone modulation
Growth hormone secretion patterns
Acts as a modulator peptide rather than a classical hormone
Short sequence allows rapid diffusion and receptor interaction
Potential for neuroendocrine signaling and circadian rhythm effects
DSIP is a small, linear 9-amino-acid neuropeptide with water-soluble, amphipathic properties. Biochemically, it functions as a neuromodulator, influencing sleep, endocrine pathways, and stress regulation in experimental studies. Its stability and activity are highly dependent on proper storage and handling due to its susceptibility to degradation.
Investigated for its role in inducing delta (slow-wave) sleep
Used in research to explore sleep architecture and sleep disorders
Studied for circadian rhythm regulation in experimental models
Examined for effects on cortisol and other stress-related hormones
May influence hypothalamic–pituitary–adrenal (HPA) axis activity
Explored in models of stress adaptation and fatigue
Potential interactions with GABAergic pathways and other central neurotransmitters
Studied for effects on neuronal excitability and neuroendocrine signaling
Investigated for possible modulation of growth hormone secretion
Explored in studies on metabolism, tissue repair, and recovery
Rodent and in vitro studies exploring DSIP’s physiological and biochemical effects
Research into peptide therapeutics and neuromodulator mechanisms
DSIP is not FDA-approved for clinical use
Research is primarily experimental or preclinical
Human data are limited and often inconsistent
Tested by Freedom Diagnostics Testing @ Freedom Diagnostics Testing – Reliable. Accountable. Accessible.
Temperature: Store refrigerated at 2–8 °C (36–46 °F)
Light Protection: Keep protected from direct light
Moisture Protection: Store in the original sealed vial
Shelf Life: Typically stable for 12–24 months when properly stored
Freezing: Can be stored at −20 °C for long-term storage, but avoid repeated freeze-thaw cycles
Diluent: Sterile water or bacteriostatic water
Temperature: Refrigerated at 2–8 °C
Use Period: Typically recommended within 7–14 days (varies depending on sterility)
Do NOT freeze after reconstitution
Handling: Gently swirl to mix; avoid vigorous shaking
Inspect solution: should be clear and colorless
Discard if cloudy, discolored, or containing particulates
Use sterile technique for reconstitution and injections
Protect from heat, light, and mechanical agitation
DSIP is most stable as a lyophilized powder stored refrigerated or frozen. Once reconstituted, it should be kept cold, used quickly, and handled gently to maintain biological activity for research applications.
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