Buy DSIP Nasal Spray in Canada
The DSIP Nasal Spray holds 5 mg of delta sleep-inducing peptide in 5 mL of sterile saline, ready-mixed in a metered atomiser that gives about 28 sprays of 175 mcg each. DSIP is a nine-amino-acid neuropeptide named for the deep-sleep EEG activity recorded when it was first described in 1977. Below: the bottle, the human sleep studies, the Sleep & Calm Spray Stack, and how to buy DSIP nasal spray in Canada.
View product →At a glance: Vistara Labs stocks DSIP as a ready-mixed nasal spray (5 mg in 5 mL) and as a 5 mg vial, independently tested at 99.5% purity, with a certificate of analysis on our Lab Reports page, shipped from within Canada by Canada Post Xpresspost, with same-business-day dispatch on orders before 3 pm Pacific, Monday to Friday. We deliver to every province, including Ontario, Quebec, British Columbia and Alberta.
Findings
- 5 mg in 5 mL, about 28 sprays at 175 mcg per spray.
- In six volunteers, total sleep rose 59% within 130 minutes of DSIP compared with placebo (1981).
- In 14 people with chronic insomnia, sleep efficiency reached the level of normal sleepers under placebo-controlled conditions (1987).
- Part of the Sleep & Calm Spray Stack, beside the Selank spray.
What is DSIP?
DSIP stands for delta sleep-inducing peptide. It is a chain of nine amino acids, Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, first characterised by Schoenenberger and Monnier in 1977 and named for the slow delta waves of deep sleep it enhanced in their EEG recordings. For a peptide it has an unusual property: a 1994 structural study describes it as a charged, water-loving molecule that can nonetheless diffuse passively across the blood-brain barrier. Our DSIP buying guide covers the vial.
What did the human DSIP sleep studies find?
- Volunteers, 1981. In the first human study, six volunteers (four men, two women) received DSIP or placebo by slow infusion in a double-blind crossover. Median total sleep time rose 59% within 130 minutes, the following night brought shorter sleep onset and better sleep efficiency, and behavioural and EEG testing found no sedation in the classic pharmacological sense. No side effects were observed.
- Chronic insomnia by age, 1986. In 18 people with chronic insomnia, the middle-aged group (29 to 59) reached normal sleep values by the end of a week of DSIP and kept them through a follow-up week. The older group (60 to 83), whose sleep was twice as disturbed at the start, reached normal sleep by the end of follow-up, and the whole sample finished with normal sleep patterns.
- Placebo-controlled, 1987. Fourteen middle-aged people with severe chronic insomnia received DSIP under double-blind, placebo-controlled conditions for seven nights. Sleep improved from the first night and further with repetition, the gain held into the placebo night that followed, sleep efficiency reached the level of normal controls, and daytime alertness and performance rose significantly.
These studies gave DSIP by infusion; the nasal format has not yet been the subject of a published human study.
Product specifications from vistaralabs.ca, October 2026. Research background: Schoenenberger GA, Monnier M. Proc Natl Acad Sci U S A. 1977. PMID 265572. Schneider-Helmert D, Gnirss F, Monnier M, Schenker J, Schoenenberger GA. Int J Clin Pharmacol Ther Toxicol. 1981. PMID 6895513. Schneider-Helmert D. Eur Neurol. 1986. PMID 3792404. Schneider-Helmert D. Eur Neurol. 1987. PMID 3622582. Gray RA et al. Biochemistry. 1994. PMID 8312250.
DSIP spray, vial or the Sleep & Calm Spray Stack?
- Ready-mixed: the DSIP Nasal Spray, 5 mg in 5 mL.
- As powder: the DSIP 5 mg vial, with the DSIP reconstitution guide for mixing it.
- Two sprays together: the Sleep & Calm Spray Stack pairs the 5 mg DSIP spray with the 10 mg Selank Nasal Spray. Selank’s research is in anxiety and the stress response, covered in Selank and anxiety: the research.
Ordering DSIP spray from within Canada
Orders ship from within Canada by Canada Post Xpresspost, the same business day when placed before 3 pm Pacific, Monday to Friday, with no customs step. The spray is covered by the DSIP certificate of analysis and is kept refrigerated, like any peptide in solution.
The DSIP Nasal Spray is supplied for laboratory research use only. Every spray we carry is listed in our guide to peptide nasal sprays in Canada.
Frequently asked questions
What does DSIP stand for?
Delta sleep-inducing peptide, named for the slow delta-wave activity of deep sleep recorded in the experiments that first identified it in the 1970s.
How much DSIP is in each spray?
175 mcg. The bottle holds 5 mg of DSIP in 5 mL of sterile saline, about 28 sprays.
What has DSIP research shown?
In a 1981 double-blind crossover study of six volunteers, total sleep rose 59% within 130 minutes of DSIP compared with placebo, and in a 1987 placebo-controlled study of 14 people with chronic insomnia, sleep efficiency reached the level of normal controls.
Which spray stack includes the DSIP nasal spray?
The Sleep & Calm Spray Stack, which pairs the 5 mg DSIP Nasal Spray with the 10 mg Selank Nasal Spray.
Does the DSIP nasal spray need mixing?
No. It arrives ready-mixed in sterile saline in a sealed metered atomiser, so no reconstitution and no bacteriostatic water are needed.
All products supplied by Vistara Labs are intended for laboratory research use only. They are not drugs, are not approved for human or veterinary use, and are not intended to diagnose, treat, cure or prevent any condition. Nothing on this page constitutes medical advice or guidance for use in humans.
