Description
Sleep Blend SZ352 is a research formulation with multiple sleep-modulating peptides in one injection. Typical composition includes DSIP (Delta Sleep-Inducing Peptide) and additional compounds with effects on sleep architecture, REM phases, and sleep quality.
Per study reports the formulation targets multiple pathways of the sleep-wake cycle:
- DSIP as endogenous sleep-modulating nonapeptide with research application in insomnia and REM sleep models
- Other components depending on formulation, typically compounds addressing GABA pathways, melatonin secretion, or cortisol modulation
Data on DSIP itself is well established by the Schoenenberger studies of the 1970s; the specific SZ352 formulation as compound mix is less well characterized.
Typical application is subcutaneous in the evening in 14-21 day courses.
You can order Sleep Blend SZ352 as an oily injection solution in 10-pack at 10ml.
This information is for research and educational purposes only. No medical recommendations.
Risks & Safety
Sleep Blend SZ352 is described as well tolerated per study reports. As a multi-component formulation with DSIP and other sleep-modulating peptides, the profile follows its individual components.
Observed in research and user reports:
- Grogginess: occasional reports of fatigue, a groggy feeling or prolonged drowsiness the next day, typical for sleep formulations used in the evening.
- Injection site: since the blend is used subcutaneously as an oily injection solution, mild redness, pressure or irritation at the injection site is the most common local observation.
- Variable composition: while DSIP itself is well established, the specific SZ352 component configuration as a compound mix is less well characterized.
- Mechanistic clarity: as a blend, the contributions of individual components to observed effects cannot be separated.
- No long-term data: robust human studies on the specific blend form do not exist.
This classification does not replace medical advice. Risk and responsibility for any actual use lie entirely with the buyer.
Studies
- The delta EEG (sleep)-inducing peptide (DSIP) - Pfluegers Archiv 1978, Schoenenberger et al: classic DSIP characterization from the Basel group that first isolated the peptide.
- Delta sleep-inducing peptide (DSIP): a still unresolved riddle - Journal of Neurochemistry 2006, Kovalzon et al: review of DSIP pharmacology, sleep-wake effects, and open mechanistic questions.
- Peptide Selank Enhances the Effect of Diazepam in Reducing Anxiety in Unpredictable Chronic Mild Stress Conditions in Rats - Behavioural Neurology 2017, Kasian et al: evidence for stress and anxiolysis modulation by related regulatory peptides.
- Delta Sleep-Inducing Peptide Recovers Motor Function in SD Rats after Focal Stroke - Molecules 2021, Tukhovskaya et al: recent DSIP study on motor recovery after stroke in rats, intranasal administration.
