Histatin-5 vs DPDPE
Head-to-head comparison of Histatin-5 (Human histatin 5) and DPDPE ([D-Pen2, D-Pen5]-enkephalin) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Histatin-5 | DPDPE |
|---|---|---|
| Category | Dental & Oral | Pain Management |
| Full Name | Human histatin 5 | [D-Pen2, D-Pen5]-enkephalin |
| Molecular Weight | 3035 Da | 645.79 Da |
| Half-Life | minutes in saliva | 15-60 minutes in plasma |
| Amino Acids | 24 | 5 |
| Typical Dose | 1-100 µM in research formulations | 0.01-1 ug per animal |
| Route | Topical/Oral rinse | Intrathecal / intracerebroventricular |
| Purity | ≥98% | ≥98% |
| Studies Count | 120 | 800 |
| Research Status | Pre-clinical | Pre-clinical |
Histatin-5 Benefits
- ✓anti-Candida activity
- ✓biofilm suppression
- ✓mucosal wound support
- ✓oral innate immunity
DPDPE Benefits
- ✓delta-opioid selectivity
- ✓improved conformational stability
- ✓analgesic receptor mapping
- ✓useful in chronic pain models
Histatin-5 Dosing
topical rinse or gel|short contact exposure|repeat applications in research protocols
DPDPE Dosing
Intrathecal 0.01-1 ug per animal|Intracerebroventricular 0.01-0.5 ug per animal|In vitro 0.1-20 nM
Histatin-5 Side Effects
- ⚠local irritation
- ⚠proteolytic instability
- ⚠dose-dependent cytotoxicity in vitro
DPDPE Side Effects
- ⚠sedation
- ⚠nausea-like opioid effects
- ⚠tolerance with repeated dosing
Research Overview
Histatin-5
Histatin-5 is a major salivary defense peptide that can kill Candida species and influence oral microbial communities. It is also investigated for wound-healing and xerostomia-associated oral infection models.
DPDPE
DPDPE is widely cited in opioid pharmacology because it helped establish the functional role of delta-opioid receptors in pain control. Its constrained structure is also used to explore how peptide cyclization changes potency, stability, and tissue selectivity.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.