LP
Highest purity Selank we've sourced
This lot had 99.1% purity per our LC-MS verification. Batch traceable to the COA provided. Will be our go-to source for all cognitive peptide research going forward.
HPLC Verified
>98% Purity
COA Included
AXON Cognitive & Nootropic
DSIP Capsules (5mg)
$149.99
DSIP (Delta Sleep-Inducing Peptide) in oral capsule format, 5mg per capsule. Studied for sleep architecture modulation, HPA axis normalisation, and stress peptide biology. COA included.
| Format | Capsule |
|---|---|
| Dosage | 5mg per capsule / 30 capsules |
| Purity | >98% |
Also available: DSIP Vial →
In Stock — Overnight and 2–3 day delivery available
Product Information
DSIP Capsules | Delta Sleep-Inducing Peptide — Neuroendocrine Research
DSIP (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) is a naturally occurring neuropeptide isolated from rabbit brain thalamus, identified for its ability to induce delta sleep in preclinical models. Beyond sleep regulation, DSIP demonstrates broad neuroendocrine activity including HPA axis modulation, opiate tolerance reduction, and antioxidant properties. These capsules (5mg per capsule, 30 capsules) support oral delivery research.
Mechanism of Action
- Delta wave promotion — induces slow-wave (delta) sleep architecture in animal models; modulates sleep-wake cycle regulation
- HPA normalisation — reduces excess cortisol and ACTH secretion in stressed animal models
- Opioid tolerance reduction — studied in models of opiate dependence for reducing tolerance development
- Antioxidant activity — demonstrated free radical scavenging properties in in vitro assays
Research Areas
DSIP is studied in sleep disorders, stress biology, HPA axis research, opioid pharmacology, and circadian rhythm modulation. Frequently paired with Selank capsules and Semax capsules for comprehensive neuroendocrine panels.
For Research Use Only. Rainbow Peptide supplies this compound exclusively for in vitro and laboratory research purposes. Not for human or veterinary use.
Frequently Asked Questions
- What is DSIP Capsules (5mg)?
- DSIP (Delta Sleep-Inducing Peptide) in oral capsule format, 5mg per capsule. Studied for sleep architecture modulation, HPA axis normalisation, and stress peptide biology. COA included.
- Is DSIP Capsules (5mg) for sale at Rainbow Peptide?
- Yes. DSIP Capsules (5mg) is available for purchase with Certificate of Analysis confirming >98% HPLC purity. Every order Overnight and 2–3 day delivery available. For Research Use Only.
- What purity is your DSIP Capsules (5mg)?
- Rainbow Peptide's DSIP Capsules (5mg) is >98% pure, HPLC verified by an accredited third-party laboratory. A COA is included with every order.
- Is DSIP Capsules (5mg) safe for human use?
- No. DSIP Capsules (5mg) is strictly For Research Use Only (RUO). It is not intended for human consumption and is not intended to diagnose, treat, cure, or prevent any disease.
- How quickly does DSIP Capsules (5mg) ship?
- Overnight and 2–3 day delivery available. Ships in temperature-controlled packaging.
Third-Party Verified
Every Order Ships with a Certificate of Analysis
We don't just claim purity — we prove it. Every batch of DSIP Capsules (5mg) is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
- HPLC purity analysis — minimum threshold >98%
- Mass spectrometry — molecular weight confirmation
- Lot number traceable to your order
- Endotoxin limits verified — safe for cell-based assays
RAINBOW PEPTIDE LABS CERTIFICATE OF ANALYSIS
Product DSIP Capsules (5mg)
Lot # RP-00257-A
HPLC Purity >98.0% >98.5% PASS
Mass Spec (MW) Confirmed Confirmed PASS
Endotoxin <1 EU/mg <0.5 EU/mg PASS
Visual Inspection White powder White powder PASS
What Researchers Say
Verified purchases from active research labs and scientists
5.00
★★★★★
2 verified reviews JA
Consistent quality for cognitive research
Semax lot tested above spec. Excellent solubility, expected in vitro behavior. The detailed COA makes this compliant with our supplier verification protocol.
PW
Good purity, great documentation
Mass spec and HPLC data attached to COA. Our internal QC confirmed results. Packaging was excellent — arrived at correct temperature with cold pack still active.
