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Peptide Therapy GuideClear peptide education

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[Full Keyword]: Compound Comparison

DSIP (Delta Sleep-Inducing Peptide) Modulates corticotropin release, reduces cortisol-driven sleep fragmentation 1–2 nmol/kg subcutaneous, 30–60 min before sleep 7–14 days for polysomnography changes Extends slow-wave sleep duration by 15–23%, reduces sleep on

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  • DSIP (Delta Sleep-Inducing Peptide)
  • Modulates corticotropin release, reduces cortisol-driven sleep fragmentation
  • 1–2 nmol/kg subcutaneous, 30–60 min before sleep
  • 7–14 days for polysomnography changes
  • Extends slow-wave sleep duration by 15–23%, reduces sleep onset latency
  • Best-evidenced peptide for sleep architecture improvement. Zero tolerance development across 12-week trials
  • Epithalon (Epitalon)
  • Upregulates telomerase, normalizes age-related melatonin decline
  • 5–10mg subcutaneous daily for 10–20 days, then 4–6 month washout
  • 5–7 days for subjective improvement, peak at day 10–12
  • Restores circadian rhythm synchronization in aging populations
  • Ideal for circadian misalignment or age-related melatonin disruption. Not for acute insomnia
  • Selank
  • Increases BDNF expression, reduces amygdala hyperactivity
  • 300–900 mcg intranasal, 1–2x daily
  • 30–60 min for anxiolytic effect, 2–3 weeks for sleep restructuring
  • Reduces stress-induced sleep latency by 34% without GABAergic sedation
  • Superior for anxiety-driven insomnia. No dependency risk vs benzodiazepines
  • MK 677 (Ibutamoren)
  • Growth hormone secretagogue, increases REM and slow-wave amplitude
  • 10–25mg oral before bed
  • 7 days for detectable changes, peak at 4–6 weeks
  • Increases REM duration and slow-wave sleep depth
  • Dual benefit for recovery and sleep quality. Requires consistent daily dosing
  • Thymalin
  • Immune modulation, cortisol normalization
  • 5–10mg subcutaneous 2–3x weekly
  • 10–14 days for immune pathway effects
  • Reduces immune-driven sleep fragmentation
  • Addresses upstream immune-cortisol dysregulation. Indirect but sustainable