DSIP vs Selank
Updated September 21, 2026 · Reviewed by the PeptidesDB Editorial team
A data-driven comparison of DSIP and Selank (also searched as Selank vs DSIP) — effect profiles, evidence, side effects, and which suits weight loss, muscle, or healing goals.
Verdict
DSIP centers on sleep, while Selank leans toward neuro. On indexed research, DSIP is ahead (DSIP: 27 studies, Human evidence; Selank: 22, Human evidence). Choose by goal — and read the primary studies. This is research information, not medical advice.
Key takeaways
- •DSIP is strongest for sleep; Selank for neuro.
- •Evidence: DSIP Human evidence (27 studies) vs Selank Human evidence (22).
- •Both are research-use compounds — not FDA-approved.
Effect profiles, overlaid
At a glance
DSIP vs Selank: side-by-side
| Metric | DSIP | Selank |
|---|---|---|
| Class | Sleep | Neuro |
| Regulatory status | Research use only | Research use only |
| Evidence grade | Human evidence | Human evidence |
| Studies indexed | 27 | 22 |
| Research level | Preclinical | Moderate Research |
| Strongest effect | Sleep & circadian | Neuro & mood |
| Healing & recovery | 2.0▲ | 1.0 |
| Muscle & body comp | 0.0 | 0.0 |
| Metabolic & appetite | 1.0▲ | 0.0 |
| Neuro & mood | 4.0▲ | 4.0▲ |
| Sleep & circadian | 5.0▲ | 1.0 |
| Inflammation & immune | 1.0▲ | 1.0▲ |
| Skin & aesthetics | 0.0 | 0.0 |
▲ marks the higher AI-assigned effect score (0–5, describing where the literature concentrates — not clinical efficacy).
Mechanism & pharmacokinetics
| Property | DSIP | Selank |
|---|---|---|
| Mechanism | CNS action, enhances slow-wave sleep | Anxiolytic heptapeptide (Tuftsin analog) |
| Route | — | Intranasal / subcutaneous (research use) |
Established pharmacology — curated for well-characterized compounds and AI-summarized otherwise. A blank (—) means no reliable single value is published (half-life figures for some peptides genuinely disagree across sources). Verify against primary sources such as FDA labels and ClinicalTrials.gov.
What is DSIP?
Delta Sleep-Inducing Peptide (DSIP) is a neuropeptide that has garnered attention for its potential roles in sleep regulation, stress modulation, and pain management. It is primarily known for promoting sleep and improving sleep quality, which is critical for overall health. DSIP has been shown to influence various physiological processes, including the modulation of neurotransmitter release and the regulation of hormonal systems, particularly those involved in stress responses.
Full DSIP profile, mechanism & studies →What is Selank?
Selank is a synthetic peptide derived from the naturally occurring peptide tuftsin, primarily studied for its potential anxiolytic and cognitive-enhancing properties. Research into Selank has focused on its effects on neuroprotection, stress response, and cognitive function, although further studies are needed to fully understand its mechanisms and therapeutic applications.
Full Selank profile, mechanism & studies →Which is better for your goal?
| Goal | Better fit | Why |
|---|---|---|
| Healing | DSIP | 2.0/5 effect signal |
| Metabolic | DSIP | 1.0/5 effect signal |
| Neuro | Even | Both ~4.0/5 |
| Sleep | DSIP | 5.0/5 effect signal |
| Inflammation | Even | Both ~1.0/5 |
Fit reflects community-perceived effect profiles — not head-to-head trials. Read each peptide's studies before deciding.
Can you stack DSIP and Selank?
People sometimes combine peptides that target different pathways, but there is little controlled research on this specific pairing and the interactions aren't well characterized. Because neither compound is FDA-approved, we don't publish stacking or dosing protocols here. Any combination should be discussed with a qualified clinician.
DSIP vs Selank: side effects
No community-reported effects logged yet.
No community-reported effects logged yet.
Anonymous community reports (count = number of reports), not clinical incidence rates.
What the research says
DSIP has 27 approved studies indexed (Human evidence), and Selank has 22 (Human evidence). The Librarian re-checks PubMed, Europe PMC and ClinicalTrials daily, so these counts move. Open each profile to read the summaries and sources.
Frequently asked questions
Is DSIP or Selank better?
It depends on your goal. DSIP is strongest for sleep; Selank for neuro. DSIP has more indexed studies (27). See the goal-by-goal breakdown above.
Is DSIP or Selank better for weight loss?
DSIP shows the stronger metabolic & appetite profile (1.0/5) in the AI-assigned effect profile — though weight-loss outcomes depend on the individual and the evidence base.
Which has more research, DSIP or Selank?
DSIP has 27 approved studies indexed (Human evidence); Selank has 22 (Human evidence). Higher counts mean more to read, not proven superiority.
Can you stack DSIP and Selank?
Some users combine peptides, but there's little controlled data on this specific pairing, and interactions aren't well characterized. We don't publish stacking protocols for compounds that aren't FDA-approved. Discuss any combination with a qualified clinician.
What are the side effects of DSIP vs Selank?
DSIP: no community-reported effects logged yet. Selank: none logged yet. These are anonymous reports, not incidence rates — see each profile.
Is DSIP or Selank FDA-approved?
DSIP is a research-use compound and is not FDA-approved. Selank is not FDA-approved. Research-use status is not a legal clearance to compound or use in humans.
Is Selank better than DSIP?
For neuro, Selank has the edge; for sleep, DSIP does. Neither is universally "better" — it's goal-dependent, and both should be weighed against their evidence base above.
Comparing related peptides
Regulatory & legal status
DSIP and Selank are research-use compounds and are not FDA-approved for human use. FDA approval and compounding rules for peptides change frequently, and research-use status is not a legal clearance for human use. The FDA does not review compounded drugs for safety, effectiveness, or quality. Verify current status with primary sources before acting. Last reviewed September 21, 2026.