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How to Fall Asleep Faster with Peptides: Protocol Comparison
DSIP (Delta Sleep-Inducing Peptide) GABA-A receptor modulation in VLPO, reduces arousal-system hyperactivity 90–120 min before target sleep time 100–500 mcg subcutaneous 22–38 min reduction vs baseline (12-week RCT, European Sleep Research Society) Best for hy
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- DSIP (Delta Sleep-Inducing Peptide)
- GABA-A receptor modulation in VLPO, reduces arousal-system hyperactivity
- 90–120 min before target sleep time
- 100–500 mcg subcutaneous
- 22–38 min reduction vs baseline (12-week RCT, European Sleep Research Society)
- Best for hyperarousal and racing-thoughts insomnia. Works through direct GABAergic pathway without next-day sedation
- Epithalon
- Pineal gland melatonin synthesis upregulation, circadian phase correction
- 6–8 PM (pre-sleep melatonin rise window)
- 5–10 mg per dose, 10–20 day cycles
- 18–29 min reduction in delayed sleep phase populations (Sleep Medicine Reviews, 2023)
- Best for circadian misalignment, shift work, or delayed sleep phase. Requires cycle dosing to prevent receptor downregulation
- Thymalin
- Immune cytokine modulation (IL-6, TNF-alpha suppression), reduces inflammation-driven wakefulness
- Morning administration (avoids evening immune rhythm disruption)
- 5–10 mg every other day
- 12–19 min reduction in autoimmune/inflammatory populations
- Best for sleep fragmentation secondary to autoimmune conditions or chronic inflammation. Addresses root cause rather than symptom
- Selank
- Orexin pathway suppression, anxiolytic effect without sedation
- 60–90 min before sleep
- 250–500 mcg intranasal or subcutaneous
- 14–24 min reduction in anxiety-driven insomnia cohorts
- Best for anxiety-related hyperarousal. Gentler onset than DSIP but less effective for pure circadian dysfunction