PACAP-27 vs Histatin-5
Head-to-head comparison of PACAP-27 (Pituitary Adenylate Cyclase-Activating Polypeptide-27) and Histatin-5 (Human histatin 5) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | PACAP-27 | Histatin-5 |
|---|---|---|
| Category | Diabetes & Metabolic | Dental & Oral |
| Full Name | Pituitary Adenylate Cyclase-Activating Polypeptide-27 | Human histatin 5 |
| Molecular Weight | 3158 Da | 3035 Da |
| Half-Life | minutes | minutes in saliva |
| Amino Acids | 27 | 24 |
| Typical Dose | Research-only: 0.1-1 nmol/kg | 1-100 µM in research formulations |
| Route | Intraperitoneal/Subcutaneous | Topical/Oral rinse |
| Purity | ≥98% | ≥98% |
| Studies Count | 220 | 120 |
| Research Status | Pre-clinical | Pre-clinical |
PACAP-27 Benefits
- ✓anti-apoptotic signaling
- ✓insulin secretagogue effect
- ✓reduced ER stress
- ✓islet cytoprotection
Histatin-5 Benefits
- ✓anti-Candida activity
- ✓biofilm suppression
- ✓mucosal wound support
- ✓oral innate immunity
PACAP-27 Dosing
0.1-1 nmol/kg in animal studies|10-100 nM in vitro|research-only intermittent dosing
Histatin-5 Dosing
topical rinse or gel|short contact exposure|repeat applications in research protocols
PACAP-27 Side Effects
- ⚠flushing
- ⚠hypotension at high exposure
- ⚠headache
Histatin-5 Side Effects
- ⚠local irritation
- ⚠proteolytic instability
- ⚠dose-dependent cytotoxicity in vitro
Research Overview
PACAP-27
PACAP-27 has been repeatedly shown to support beta-cell survival through cAMP/PKA and related pathways. In experimental models it mitigates cytokine damage, preserves insulin content, and helps maintain islet viability.
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.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.