New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareARA-290 vs DSIP

ARA-290 vs DSIP

Side-by-side comparison of key properties, dosing, and research.

Immune SupportRecovery & Repair
ARA-290
Sleep OptimizationCognitive Enhancement
DSIP
Summary
ARA-290 is a synthetic 11-amino acid peptide derived from the helix B region of erythropoietin (EPO). Unlike EPO, it selectively activates the innate repair receptor (IRR) without stimulating hematopoiesis, providing tissue protection, anti-inflammation, and neuropathy relief.
DSIP is an endogenous neuropeptide originally isolated from rabbit cerebrospinal fluid that induces delta-wave (deep) sleep. It also modulates stress response, cortisol regulation, and LH secretion, making it valuable for sleep optimization and stress management.
Half-Life
~2–4 hours (SC administration)
~30–60 minutes; however downstream sleep effects last 4–6 hours
Admin Route
SubQ
SubQ, IV, Intranasal
Research
Typical Dose
4 mg (fixed dose)
100–400 mcg
Frequency
Once daily
Once nightly
Key Benefits
  • Reduces neuropathic pain from small fiber neuropathy
  • Anti-inflammatory without immune suppression
  • Tissue protection after ischemia/reperfusion injury
  • Promotes nerve fiber regeneration
  • Improves symptoms of sarcoidosis-associated neuropathy
  • May reduce insulin resistance and improve metabolic health
  • Shown to improve autonomic neuropathy symptoms
  • Induces and deepens delta-wave (slow-wave) sleep
  • Reduces cortisol and normalizes HPA axis
  • Improves sleep quality in insomnia patients
  • Anti-stress and anxiolytic effects
  • May improve opiate/alcohol withdrawal symptoms
  • Analgesic properties through opioid modulation
  • Antioxidant and neuroprotective effects
Side Effects
  • Injection site reactions
  • Mild fatigue at initiation
  • Transient warm sensation post-injection
  • Rare: mild headache
  • Generally well tolerated
  • Mild grogginess next morning at higher doses
  • Rare: hypotension
  • Potential for altered dream patterns
Stacks With