Pepdexpepdex
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DSIP

Delta Sleep-Inducing Peptide. A brain-origin peptide aimed at sleep architecture. Limited human data, mixed user reports.

Nootropic
Evidence: Anecdotal

DSIP: Delta Sleep-Inducing Peptide. A brain-origin peptide aimed at sleep architecture. Limited human data, mixed user reports. DSIP (Delta Sleep-Inducing Peptide) is a sleep-architecture peptide.

In plain English

DSIP (Delta Sleep-Inducing Peptide) is a sleep-architecture peptide. Some users notice deeper sleep within nights, others nothing. Limited human data. Sub-q dose taken pre-bed.

Status & legalityWhat do these mean? →
Natty?
Not natty
FDA
Not approved

Not FDA approved.

Compounding
Not classified

Not formally categorized in the FDA bulks lists.

WADA
Not listed
Prescribed

Not prescribed in conventional medicine.

Who it's for

  • Users with disrupted deep-sleep architecture
  • People who want a non-melatonin, non-benzo sleep tool
  • Stack add-on for recovery cycles

What to expect

  1. Week 1

    Effect within 1-3 nights for responders. Non-responders won't notice.

  2. Week 4

    Sleep tracker data usually shows the change if it's real. If working, hold.

  3. Week 8

    If still helping, cycle off briefly to confirm it's the peptide and not just routine changes.

Looking at DSIP? Your next 3 steps

  1. 1Work out your exact dose

    Vial size + BAC water turns into the exact units to draw for DSIP.

    Open calculator
  2. 2See what to stack & monitor

    The companion supplements and the bloodwork worth tracking on this kind of protocol.

    Bloodwork guide
  3. 3Save it & ask the Coach

    A free account saves your stack; membership adds the stack-aware AI Coach.

    Create free account

How it works (mechanism)

Endogenous nonapeptide first isolated from rabbit cerebral venous blood during sleep. Proposed to modulate sleep architecture via interaction with thalamic and hypothalamic sleep regulators. Mechanism remains poorly defined.

Dosing protocol

Members only

Stacks well with

Members only

Side effects

01Vivid dreams
02Mild headache
03Rare: residual grogginess

When NOT to use

  • Pregnancy / nursing, no data

Common mistakes

  • Expecting it to work like a sedative (it doesn't sedate, it shifts architecture)
  • Trying once and giving up, give it a week
  • Stacking with too many sleep aids and crediting DSIP for everything
Free, no account needed

New to DSIP? Grab the starter checklist.

Drop your email and we'll send the one-page first-cycle starter checklist, plus a heads-up if DSIP changes legal status. No account needed.

No spam. No selling your email. Just the checklist and the occasional reclassification alert.

AI Coach, live sample
Members only
is 250mcg of bpc enough for a knee injury?
For a knee, 250 mcg sub-q daily is the standard working dose and a solid place to start. The trick with BPC is consistency, give it weeks, not days. Inject close to the joint, run it 4-6 weeks, and don't drop below 200 mcg, it tends to stop cracking the threshold reliably down there. If it hasn't moved at all by week 3, that's when adding TB-500 earns its place.
how much bac water for a 10mg reta vial?
3 mL is the standard play for a 10 mg reta vial. That's 3,333 mcg/mL, clean unit math across the titration: 2 mg = 60 units, 4 mg = 120 units, 6 mg = 180 units on a 100-unit insulin syringe. Run 2 mL instead if you want fewer, more concentrated shots (5,000 mcg/mL, so 2 mg = 40 units). Since most people titrate up over ~12 weeks, 3 mL keeps the numbers cleanest.
what should i track on bloodwork for tirzepatide?
Lipid panel, ALT/AST (liver enzymes), and an A1C, baseline before you start then every 3 months. If you've got metabolic-syndrome history, add fasting glucose and insulin so you can actually watch insulin sensitivity improve. You don't need a big hormone panel for a GLP-1.

Ask the Coach anything about DSIP or your own stack. This is it working.

Trained only on Pepdex content. Does the dose math, flags interactions, knows your stack. Won't push vendors, won't pretend to be a doctor.

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Frequently asked

What is DSIP?+
DSIP (Delta Sleep-Inducing Peptide) is a sleep-architecture peptide. Some users notice deeper sleep within nights, others nothing. Limited human data. Sub-q dose taken pre-bed.
Is DSIP FDA approved?+
Not FDA approved.
Is DSIP legal?+
DSIP is not FDA-approved. It is sold by compounding pharmacies (with a prescription) and as "research only" by peptide vendors. Possession is generally not criminalized but distribution without authorization may be. Verify local laws.
Is DSIP banned by WADA?+
DSIP is not currently on the WADA prohibited list.
Are you still natty after taking DSIP?+
No. DSIP is a performance-enhancing peptide and would disqualify a strict natty claim.
Do doctors prescribe DSIP?+
Not prescribed in conventional medicine.
What's the typical dose of DSIP?+
100-300 mcg sub-q, 30-60 min pre-bed.
What are the side effects of DSIP?+
Common side effects include: Vivid dreams; Mild headache; Rare: residual grogginess. Less common effects and full safety details are on the entry page.
How long until DSIP starts working?+
Effect within 1-3 nights for responders. Non-responders won't notice.
What can you stack with DSIP?+
Common pairings: Ipamorelin pre-bed for deeper GH pulse + sleep; Standalone. Full stacking protocol and timing on the entry page.
Where do people get DSIP?+
DSIP is most commonly sold by research-only peptide vendors and by compounding pharmacies (the latter requires a prescription). Pepdex is not a vendor, see /coa for how to verify a Certificate of Analysis before buying from any source, and /guides/scam-vendor-spotting for vendor red flags.