DSIP guide & protocols

You should read the DSIP research notes before this page, because they contain the thing that ought to shape your expectations: the compound is named delta sleep-inducing peptide, and when it was tested in people with insomnia, delta sleep was specifically the thing that didn't change. That's not a small caveat, it's the headline. What follows is what people run anyway, said plainly, because plenty of people are going to run it and the useful thing is to help them do it well rather than pretend they won't.

Vial size isn't part of what follows, since the amount of bacteriostatic water you add sets your concentration either way. Our reconstitution calculator handles that math for whatever vial and target amount you're working with.

What it is

DSIP is a chain of nine amino acids, pulled out of rabbit blood in 1977 by researchers looking for whatever chemical signal was carrying deep sleep from one animal to another. They found a candidate, named it for what they expected it to do, and the name stuck harder than the evidence did.

What it actually does in the body has never been well pinned down. There's no clean receptor story here the way there is for the growth hormone compounds or the GLP-1s. It appears to sit somewhere in the machinery that handles stress response and the daily rhythm rather than acting as a sedative, which is worth knowing because it explains why the people who report something from it rarely describe it as feeling sleepy.

What people use it for

Sleep, overwhelmingly, and specifically the midlife version of the problem: not trouble falling asleep, but waking at three in the morning with the day's list already running. That's the complaint DSIP gets reached for, and it's worth naming that the research never tested that complaint. It tested people with chronic insomnia and measured what their sleep stages did.

The quieter thread is stress, and it has better footing than the sleep one. The research that continued after the sleep work stalled looked at stress response, pain, and whether the compound had any protective effect on the nervous system, and none of those lines depend on the delta-sleep claim being true. If the reason you're interested is that everything feels dialled up rather than that you can't sleep, you're closer to the part of this compound's record that held up.

Formulations

DSIP ships as a lyophilized powder for subcutaneous injection. Across the vendors we track, 5 mg vials are the most common, with 10 mg close behind and 2 mg available from only a couple. That distribution is a problem for this particular compound, and the dosing section explains why: at the amounts people actually run, the standard vial holds more than its own reconstituted shelf life can reach.

Nasal spray preparations circulate. There's no research establishing what fraction of a nasal dose gets anywhere useful for this compound, so the amounts on this page, which are all subcutaneous, can't be carried across to one.

Dosing protocols

There's no approved product and nothing establishing an amount for the purpose people use it for, so every pattern below is convention. The last row is the one that matters most.

See the DSIP research notes for what the controlled human work actually measured, before reading the dosing itself.

All patterns above are subcutaneous injection.

The vial-size trap

This is the practical thing worth taking away from the page. At 100 mcg nightly, a 5 mg vial holds fifty doses, which is fifty nights. A reconstituted vial keeps about 28 days. So the standard vial contains nearly twice what you can use before it expires, and roughly 2.2 mg of it goes in the bin. At 200 mcg nightly it just about works out, since 28 nights draws 5.6 mg, which is a whole 5 mg vial and a little more.

That's an odd situation and it's specific to compounds dosed in the low hundreds of micrograms. The 2 mg vials only a couple of vendors carry are actually the better buy at the lower amount, even at a worse price per milligram, and this is one of the few places on this site where we'd tell you the cheaper per-mg option is the wrong one.

Working example: 5 mg into 2 mL of bacteriostatic water gives 2,500 mcg per mL, so 200 mcg is 200 divided by 2,500, times 100, which is 8 units on a standard U-100 insulin syringe, and 100 mcg is 4 units. See how much to reconstitute at once for the general math.

Cycling guidelines

Two to four weeks on with a break after is the pattern described most often, and the five-on-two-off weekly rhythm in the table is the other common shape. Neither has anything behind it. The stated reasoning is usually about avoiding tolerance, though for a compound whose mechanism nobody has established, tolerance to what is an open question.

There's a more practical reason the short blocks make sense here, and it isn't about the body. A two-to-four-week block matches the reconstituted shelf life, so a cycle and a vial end at roughly the same time. That alignment is probably why the convention settled where it did.

Signs a course is commonly stopped or reconsidered:

• Grogginess or a hungover feeling in the morning, which is the most commonly reported complaint
• Vivid or disruptive dreams
• Headaches
• Two to four weeks with no change, which is the most common outcome and worth deciding about in advance rather than escalating the amount

Stacking

Most commonly paired stack: DSIP with epithalon.

Rationale: both are approached as regulators of the daily rhythm rather than as sedatives, and epithalon's own research includes work on the pineal gland and melatonin patterns. The argument is that one is working on the rhythm and the other on the night itself.

Protocol as run: DSIP nightly before bed, epithalon on its own separate course, which is conventionally run in defined short blocks rather than continuously. The two schedules don't line up neatly and people generally run each on its own pattern.

Lighter stacks: magnesium and the ordinary sleep-hygiene measures come up constantly alongside this compound, and they're worth mentioning rather than dismissing, because the three-in-the-morning waking that brings people here often responds to them. Selank shows up as a stress pairing for people whose interest is the stress thread rather than the sleep one.

Combinations to approach carefully: anything else sedating, including alcohol and prescription sleep medication. Nobody has studied those combinations with this compound and the honest position is that we don't know what stacks on top of what.

Expected results timeline

First few nights: where people report anything, they report it quickly, within the first two or three nights. This isn't a compound that builds. If a fortnight has passed with nothing, more time is unlikely to change that.

Weeks in: reports settle into either something modest that continues or nothing at all. The something is usually described as waking less rather than falling asleep faster, which is interesting given the compound was never shown to deepen sleep.

Extended, continued use: no data. The human research window closed in the early 1990s.

What to expect realistically: this is the compound on the site with the widest gap between its name and its record, and it's worth being blunt about the odds. Controlled research was done, in the population most likely to benefit, and the effect it found was small enough that the researchers themselves said so. That's more informative than any number of enthusiastic vendor descriptions, and it should set your expectations low enough that a modest result is a pleasant surprise rather than the minimum you paid for.

Administration technique

1. The lyophilized powder is reconstituted with bacteriostatic water, at a concentration set by the reconstitution calculator for the target nightly amount.
2. The solution is swirled gently to dissolve rather than shaken, since agitation can degrade the peptide.
3. The calculated volume is drawn into an insulin syringe, which matters here because at 4 to 8 units the draw is small and a larger syringe won't measure it well.
4. A subcutaneous site is chosen, commonly the abdomen, with sites rotated night to night.
5. The skin is pinched and the injection given at roughly a 45-degree angle.
6. The dose is commonly given 30 to 60 minutes before bed, which is convention rather than anything the research established.

Side effects and safety

Common: very little is reported. Morning grogginess and vivid dreams are the two that come up, and both are mild and inconsistent. This compound's tolerability is genuinely good, which is part of why it stayed in circulation despite the disappointing research.

Less common: headaches, and occasional reports of feeling flat or dulled the following day.

What we don't know: almost everything about long-run use. The human research was small, short, and ended more than thirty years ago, and nothing since has looked at what nightly use over months or years does. The absence of reported problems in that time is worth something, but it's community experience rather than surveillance, and nobody is collecting it systematically.

Contraindications: pregnancy, breastfeeding and use in minors, on the general principle that applies where there's no data. Anyone already taking prescription sleep medication is in a situation nobody has studied.

Drug interactions: none established. Sedatives and alcohol are the sensible caution, on general grounds rather than on evidence.

DSIP vs. Epithalon

Epithalon is the compound DSIP gets cross-shopped against, since both are approached for the daily rhythm and both are commonly reached for by people whose sleep changed in midlife.

Choose DSIP if: you want to test something quickly and cheaply, you'll know within a fortnight, and the stress angle interests you as much as the sleep one.

Choose epithalon if: you're thinking in terms of the longer rhythm rather than tonight, and a short annual course suits you better than a nightly injection.

See the full DSIP and epithalon comparison, the epithalon guide and protocols, and peptides for sleep for the wider picture.

Storage and handling

Lyophilized powder: refrigerate at 2 to 8°C and protect from light. Kept frozen, the unreconstituted powder is commonly described as stable considerably longer, which is worth knowing here specifically, because splitting a large vial isn't an option and freezing the unopened one is.

Reconstituted solution: refrigerate and use within about 28 days. On this compound that window is the binding constraint rather than a formality, since it's shorter than a 5 mg vial lasts at the commonly referenced amounts. Avoid repeated freeze-thaw cycles.

Signs of degradation:

• Cloudiness or visible particles in a solution that was previously clear
• Discoloration of the powder or the reconstituted liquid
• Powder that has clumped or gone sticky, which usually means moisture reached it

FAQ

Does it actually induce deep sleep? The controlled research says no. Total sleep time rose through the lighter stage, and deep sleep was unchanged, which is the specific thing the name claims.

So why do people still run it? Partly the name, and partly because it's cheap, well tolerated, and you find out fast. The stress research is the more defensible reason.

How much do people run? 100 to 200 mcg nightly, 30 to 60 minutes before bed, is what circulates. It's convention, not a research figure.

Which vial should I buy? At 100 mcg nightly a 5 mg vial holds more than the 28-day window can use. A 2 mg vial is the better buy at that amount even at a worse per-milligram price.

How fast would I know? Within a few nights. This isn't a compound that builds over weeks.

Should I go higher if nothing happens? That's the common instinct and there's nothing supporting it. The compound's record doesn't suggest the amount is what's missing.

What about nasal sprays? No research establishes how much of a nasal dose gets anywhere useful, so the amounts here don't transfer.

How is it stored? Refrigerated and out of the light, frozen if unreconstituted and being kept a while, and used within about 28 days once mixed.

Bottom line

Key dosing takeaways:

• 100 to 200 mcg nightly before bed is the convention, and it comes from vendor education rather than from any research
• The controlled human research found that the one thing the compound is named for did not happen, and every pattern here sits on top of that
• You'll know within a few nights, so a defined two-to-four-week block with a decision at the end is a reasonable way to test it

Best practices:

• Buying the smaller vial if you're running the lower amount, since a 5 mg vial outlasts its own 28-day window at 100 mcg a night
• Freezing the unreconstituted powder rather than mixing more than a month's worth
• Deciding in advance what "it worked" would look like, since this is a compound where the expectation does a lot of the work

Works best for people who:

• Want a cheap, well-tolerated thing to test quickly with clear eyes about the odds
• Are as interested in the stress thread as the sleep one, since that research held up better
• Can read a vendor description promising deep restorative sleep and recognise it as the claim the research declined to support

DSIP is sold for research, the human work on it is small and thirty years old, and it did not find what the compound's name says it does. You already know that now. You're an adult making an informed call about your own body, and that's yours to make.