Overview
A neuropeptide that promotes delta wave (deep) sleep. Discovered in 1977 from cerebral venous blood of sleeping rabbits. Normalizes sleep architecture, reduces stress-related insomnia, and may regulate cortisol and LH release.
Reported Dosing Ranges
Reference information only. Not medical advice, prescriptions, or recommendations.
Sleep Enhancement
Dosage
100-300 mcg
Frequency
Once daily
Cycle Length
2-4 weeks
Timing
30 minutes before bed
Notes
Inject subcutaneously or intranasally 30 min before bed. Effects are subtle and build over days. Does not cause next-day grogginess. No tolerance or dependence reported. Often cycled 2 weeks on, 2 weeks off. Can be stacked with Epithalon.
Reconstitution Calculator
* U-30 recommended for this dose (4.0 units)
Your Dose
Draw to
4.0units
(0.040 mL) on a U-100 syringe
Syringe Fill
U-100 insulin syringe
Reconstitution
Concentration
2.50 mg/mL
mcg per mL
2500 mcg
Per Unit (IU)
25.0 mcg
Doses Per Vial
50 doses
Storage
🌡️ Refrigerate at 2-8°C (36-46°F)
📋 Use within 21 days once reconstituted.
⏱️ Shelf life: 21 days after reconstitution