PubMed
Delta sleep-inducing peptide (DSIP): A review
Graf MV, Kastin AJ. Neurosci Biobehav Rev. 1986
Compare
DSIP vs GHK-Cu
Side-by-side observational reports from PeptIQ users. This compares self-reported patterns — not clinical head-to-head trials.
Last reviewed . By the PeptIQ team.
Observational reporting only — not medical advice. Does not recommend doses, protocols, or treatments.
DSIP
50 community reports
Overall experience
From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Favorable 3% · Mixed 97% · Unfavorable overall 0%
Most reported benefits
Benefits users selected when logging a favorable or mixed check-in.
Sleep
183
Mood
182
Most logged side effects
Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Headache
177
Self-reported dose per injection
Median bucket: 200–400 mcg · Most common: 200–400 mcg
Reports span 25–600 mcg
25–50
5
50–100
2
100–200
38
200–400
132
400–600
6
Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.
Commonly stacked with
How repeat users are trending
Among repeat reporters, 85% said they felt similar to their last entry, 15% more positive, and 0% more negative.
Overall, repeat reporters leaned more positive than their previous entry.
Median gap between entries: 62 days · Based on 33 repeat reporters
GHK-Cu
120 community reports
Overall experience
From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Favorable 3% · Mixed 97% · Unfavorable overall 0%
Most reported benefits
Benefits users selected when logging a favorable or mixed check-in.
Mood
226
Recovery
226
Energy
1
Most logged side effects
Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Injection site irritation
222
Self-reported dose per injection
Median bucket: 2–3 mg · Most common: 2–3 mg
Reports span 0 to ≥ 5 mg (open-ended top bucket)
0–0.01 mg
1
0.025–0.05 mg
16
0.2–0.4 mg
4
0.6–1 mg
1
1–2 mg
71
2–3 mg
87
3–5 mg
43
5+ mg
5
Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.
Commonly stacked with
How repeat users are trending
Among repeat reporters, 89% said they felt similar to their last entry, 11% more positive, and 0% more negative.
Overall, repeat reporters leaned more positive than their previous entry.
Median gap between entries: 46 days · Based on 45 repeat reporters
Sources (11)
Published sources linked on the DSIP and GHK-Cu wiki pages.
- Wiki study page →Source
- Wiki study page →Source
PubMed
DSIP and stress tolerance in rats
Sudakov KV, Koplik EV, Umriukhin PE. Peptides. 1988
- Wiki study page →Source
ClinicalTrials.gov
DSIP studies on ClinicalTrials.gov
ClinicalTrials.gov. Clinical trial registry. 2024
- Wiki study page →Source
PubMed
Delta sleep-inducing peptide
Pollard BJ, Pomfrett CJ. European journal of anaesthesiology. 2001
- Wiki study page →Source
PubMed
Delta-sleep-inducing peptide (DSIP): a review
Graf MV, Kastin AJ. Neuroscience and biobehavioral reviews. 1984
- Wiki study page →Source
Review Article
GHK-Cu may prevent oxidative stress in skin by regulating copper and modifying expression of numerous antioxidant genes
Pickart L, Margolina A. Cosmetics. 2018
- Wiki study page →Source
PubMed
GHK-Cu in wound healing and tissue regeneration
Pickart L. J Biomater Sci Polym Ed. 2008
- Wiki study page →Source
PubMed
GHK peptide as a natural modulator of multiple cellular pathways
Pickart L, Margolina A. Biomed Res Int. 2014
- Wiki study page →Source
ClinicalTrials.gov
GHK-Cu copper peptide studies on ClinicalTrials.gov
ClinicalTrials.gov. Clinical trial registry. 2024
- Wiki study page →Source
PubMed
GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration
Pickart L, Vasquez-Soltero JM, Margolina A. BioMed research international. 2015
- Wiki study page →Source
PubMed
Biomimetic Hydrogel Scaffolds with Copper Peptide-Functionalized RADA16 Nanofiber Improve Wound Healing in Diabetes
Yang X, Zhang Y, Huang C, et al. Macromolecular bioscience. 2022