Tripeptide-29 vs DS5
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticAnti-Aging & Longevity
Tripeptide-29Sleep Optimization
DS5- Summary
- Tripeptide-29 is a pro-collagen cosmetic peptide composed of proline, hydroxyproline, and glycine — the core repeating unit of collagen. Applied topically, it signals dermal fibroblasts that collagen degradation has occurred, triggering compensatory new collagen synthesis.
- 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
- Not applicable (topical)
- Estimated 30-60 minutes (peptide degradation)
- Admin Route
- Topical
- Subcutaneous, Intranasal (research)
- Research
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- Typical Dose
- 0.01-0.1% in formulation
- 200-500 mcg per dose
- Frequency
- Once or twice daily
- Once nightly
- Key Benefits
- Stimulates fibroblast collagen synthesis via damage-signal mechanism
- Reduces fine lines and improves skin smoothness
- Supports dermal matrix integrity
- Naturally bioidentical to collagen fragment sequences
- Well-tolerated in all skin types
- Synergistic with copper peptides and retinoids
- 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
- Excellent tolerability profile
- No documented significant adverse effects at cosmetic concentrations
- Rare sensitivity reactions in individuals with peptide allergies
- 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
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