hBD-1 vs P11-4
Head-to-head comparison of hBD-1 (Human beta-defensin 1) and P11-4 (Self-assembling peptide P11-4 (Ac-QQRFEWEFEQQ-NH2)) — benefits, dosing, side effects, research data, and where to buy.
| Property | hBD-1 | P11-4 |
|---|---|---|
| Category | Dental & Oral | Dental & Oral |
| Full Name | Human beta-defensin 1 | Self-assembling peptide P11-4 (Ac-QQRFEWEFEQQ-NH2) |
| Molecular Weight | 4490 Da | 1466 Da |
| Half-Life | minutes to hours | local activity for hours; peptide degraded over time |
| Amino Acids | 36 | 11 |
| Typical Dose | 1-10 µg/mL in experimental studies | 0.5-5 mg per lesion |
| Route | Topical/Intraoral | Topical/Intraoral |
| Purity | ≥98% | ≥98% |
| Studies Count | 85 | 40 |
| Research Status | Pre-clinical | Clinical |
hBD-1 Benefits
- ✓oral innate immunity
- ✓broad antimicrobial activity
- ✓biofilm suppression
- ✓periodontal support
P11-4 Benefits
- ✓enamel remineralization
- ✓early caries arrest
- ✓biomimetic scaffold formation
- ✓minimally invasive repair
hBD-1 Dosing
topical peptide exposure|cell-culture or mucosal models|repeat low-dose application in research
P11-4 Dosing
topical application to cleaned lesion|single-visit in-office application|repeat at follow-up if indicated
hBD-1 Side Effects
- ⚠protease degradation
- ⚠local irritation at high dose
- ⚠limited stability in saliva
P11-4 Side Effects
- ⚠transient tooth sensitivity
- ⚠local irritation
- ⚠taste disturbance
Research Overview
hBD-1
hBD-1 has been studied as part of the oral mucosal defense system and is linked to host resistance against dental pathogens. Research spans periodontitis, candidiasis, and epithelial barrier biology.
P11-4
P11-4 has been studied for its ability to penetrate initial carious lesions and self-assemble into a fibrillar matrix that nucleates hydroxyapatite. Human and preclinical studies support its role in non-invasive enamel repair.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.