Ipamorelin vs DS5
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone Peptides
IpamorelinSleep Optimization
DS5- Summary
- Ipamorelin is a selective GHRP (growth hormone releasing peptide) and one of the cleanest GH secretagogues available. It selectively stimulates GH release without significantly raising cortisol, prolactin, or appetite — making it ideal for long-term use and anti-aging protocols.
- DS5 is a synthetic variant of the delta sleep-inducing peptide (DSIP), a nonapeptide originally isolated from rabbit cerebrospinal fluid during slow-wave sleep. Like DSIP, DS5 is explored for sleep optimization, stress modulation, and circadian rhythm normalization, with proposed improvements in potency or stability over the parent molecule.
- Half-Life
- 2 hours
- Estimated 30-60 minutes (peptide degradation)
- Admin Route
- SubQ
- Subcutaneous, Intranasal (research)
- Research
- —
- —
- Typical Dose
- 100–300 mcg
- 200-500 mcg per dose
- Frequency
- Once to twice daily
- Once nightly
- Key Benefits
- Increases lean muscle mass
- Enhances fat loss
- Improves recovery time
- Strengthens bones and joints
- Better sleep quality and REM sleep
- Enhanced skin elasticity
- Minimal impact on hunger or cortisol
- No cortisol or prolactin spike
- Clean GH release suitable for long-term protocols
- Promotes delta-wave (deep) sleep and improves sleep quality
- May reduce sleep onset latency
- HPA axis modulation for stress reduction
- Non-addictive sleep support without tolerance development
- Potential circadian rhythm normalization
- Explored for insomnia, chronic stress, and PTSD-related sleep disturbance
- Side Effects
- Injection site irritation
- Temporary water retention (mild)
- Possible hunger increase (milder than GHRP-6)
- Numbness or tingling in extremities (rare)
- Generally well-tolerated in research subjects
- Possible morning grogginess at higher doses
- Mild blood pressure fluctuations reported with DSIP
- Limited human safety data for DS5 specifically
- Stacks With
- —
- —