Free shipping on orders over $15012% off your first order — code FIRST12Stack 3+ peptides, save 20% with STACK20US 503A partner pharmacy · Cold-chain shipped
Free shipping on orders over $15012% off your first order — code FIRST12Stack 3+ peptides, save 20% with STACK20US 503A partner pharmacy · Cold-chain shipped
← All peptides
Sleep & Stress

DSIP

Delta Sleep-Inducing Peptide

A nine-amino-acid neuropeptide first isolated from rabbit cerebral venous blood during electrically induced sleep.

DSIP

Compounded · 503A Pharmacy

Mechanism of action

Modulates GABAergic and corticotropin-releasing hormone pathways to lower stress reactivity and promote slow-wave sleep.

Studied uses

  • Sleep onset & deep-sleep promotion
  • Stress and cortisol regulation
  • Circadian rhythm reset (jet lag, shift work)
  • Chronic pain modulation

Research highlights

  • · Improved sleep latency in chronic insomnia (small clinical trials)
  • · Reduced opioid withdrawal symptoms in early studies
  • · Decades of Soviet-era research

Side effects & cautions

  • · Vivid dreams
  • · Mild headache
  • · Transient morning grogginess