DSIP is one of the most searched peptide names in Canada, usually from people looking for help with sleep. Here is what delta sleep-inducing peptide actually is, how thin the evidence is, and why no Canadian pharmacy can dispense it.
Short answer: DSIP is not an authorized drug in Canada. It has no Drug Identification Number (DIN) in Health Canada’s Drug Product Database (checked 10 November 2026), so no pharmacy can dispense it and no prescriber can prescribe it as a medicine. Vials sold online as DSIP are unregulated chemicals.
What is the DSIP peptide?
DSIP stands for delta sleep-inducing peptide. It is a short chain of nine amino acids. Swiss researchers described it in 1977, after isolating it from the blood of rabbits whose sleep had been induced in the laboratory, and named it after the deep “delta” stage of sleep they were studying.
Almost fifty years later, its natural role in the body is still debated. Researchers have looked at it in many systems, but no clear receptor or job for it has been settled.
What does the research on DSIP show?
Most of what is known comes from animal work and small human studies from the 1970s and 1980s. Their results were inconsistent, the studies were small, and the methods would not meet today’s standards. No modern, large clinical trial has shown that DSIP is safe or effective for any use, and no regulator has reviewed it as a medicine.
That gap matters. Dosing charts and “protocols” for DSIP that circulate online are not based on any reviewed evidence. Nobody can tell you what a safe or useful amount is, because that work has never been done.
DSIP peptide Canada: is it legal?
A peptide that is meant to treat or change a body function is regulated in Canada as a drug. To be sold as one, it needs Health Canada’s review and a DIN. DSIP has neither. That is why you will not find it at any licensed Canadian pharmacy, ours included, and why sellers label it “for research”.
Then what is being sold online as DSIP?
Online DSIP is a powder in a vial, made outside any regulated drug supply chain. There is no way to know whether the vial contains the stated amount, a different substance, or contaminants, and no Canadian authority has checked the facility that made it. Injecting an unregulated product also carries the risk of infection.
What you can do instead
- If you are having trouble sleeping, talk to a pharmacist or a clinician first. Many causes are common and treatable, and some medications or habits make sleep worse without people realizing it. You can ask our pharmacist.
- Read peptides in Canada to see which peptides are authorized, and how to check any product.
- If you are curious about peptides in general, what are peptides? explains the basics.
DSIP questions
Is DSIP legal in Canada?
It is not an authorized drug. With no DIN, it cannot be dispensed by a Canadian pharmacy or prescribed as a medicine.
Is DSIP the same as melatonin?
No. Melatonin is a hormone, not a peptide, and products containing it are reviewed by Health Canada. DSIP is an unrelated peptide that has not been reviewed.
Can a doctor prescribe DSIP?
Not as a medicine available in Canada. A prescriber can only prescribe drugs that are authorized here, or use specific regulated access routes for rare cases.
I have been using DSIP from an online seller. What should I do?
Speak to a physician or pharmacist before your next dose and tell them exactly what you have used. They are there to help, not to judge. You can ask a pharmacist here.
Reviewed by our pharmacist-in-charge on 10 November 2026. This page is general information, not medical advice. See also peptides in Canada.