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Needle-free and pre-measured: every 0.05ml spray delivers a fixed 50mcg, so doses are counted in sprays, not syringe units.

Dose ranges reflect commonly studied amounts in published research models. This is not medical advice. For research use only. Not for human consumption.
Protocol Comparison
Recovery
Research dose range
Standard research range
100 - 200 mcg
Two to four sprays (100–200mcg), mirroring the core range of community injectable DSIP protocols.
Research focus
Delta sleep / stress modulation
Observed window
~15-min half-life
Administration
Intranasal, shortly before sleep
Primary pathway
CRF / stress axis / melatonin
Doses calculated from this kit's actual concentration: 1 mg/ml, 50mcg per 0.05ml spray. Tier ranges mirror community injectable DSIP protocols; no controlled human study has tested intranasal DSIP. Published human studies used IV dosing (Schneider-Helmert & Schoenenberger, 1983). For research use only.
PROTOCOL BENEFITS
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Needle-free and pre-measured: every 0.05ml spray delivers a fixed 50mcg, so doses are counted in sprays, not syringe units.
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The same nonapeptide as our injectable DSIP, linked to increased slow-wave (delta) sleep in early EEG research.
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Sits where stress and sleep meet: early studies found DSIP dampened CRF-driven corticosterone release, a core stress signal.
SCIENCE
DSIP was isolated in Basel in 1977 from the cerebral venous blood of sleeping rabbits, and early experiments linked it to more delta-wave activity on EEG, the signature of deep sleep. It was later found in the hypothalamus, limbic system and pituitary, though its receptor has never been identified.
The nose is a practical needle-free route for short peptides, and nose-to-brain delivery is an active field of research. For DSIP specifically, though, published human studies used intravenous dosing. No controlled trial has tested intranasal DSIP, so nasal absorption and dose equivalence remain unestablished.
WHAT TO EXPECT
DSIP is short-lived, with a reported half-life of around 15 minutes, so nasal protocols time the dose shortly before the sleep period. In human research, early open studies noted better sleep efficiency, while a 1992 double-blind trial judged the effects weak.
PROTOCOL NOTE
Kit includes 5mg or 10mg lyophilized DSIP, 5ml or 10ml sterile saline and a 0.05ml metered nasal spray bottle. Once reconstituted, keep refrigerated. For research use only. Full documentation included with every order.
FAQ
Reconstituted at 1 mg/ml, the 5mg kit makes 5ml, about 90 usable sprays after priming. The 10mg kit makes 10ml, about 190 sprays. Every spray delivers 50mcg.
That hasn't been established. Published human DSIP studies used intravenous dosing, and no controlled trial has compared nasal and injectable DSIP. Don't assume sprays match injectable doses one-to-one.
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