UNICARE DH / DH2 (DMDM HYDANTOIN / WATER)
General Information
UNICARE DH / DH2 is a formaldehyde-releasing preservative system composed of DMDM Hydantoin and Water. It offers broad-spectrum antimicrobial protection, particularly effective against bacteria, and is widely used in rinse-off personal care products such as shampoos, conditioners, and liquid soaps. This system is ideal for cost-effective and stable preservation in high-water-content formulations.
Product Properties
| Property | Description |
|---|---|
| Chemical Name | DMDM Hydantoin / Water |
| INCI Name | DMDM Hydantoin, Water |
| CAS Number | 6440-58-0 / 7732-18-5 |
| Appearance | Clear, colorless liquid |
| Odor | Mild, characteristic |
| Solubility | Soluble in water |
| pH Range Efficacy | 3.0 – 9.0 |
| Active Content (%) | 50 |
| Biodegradability | Partially biodegradable |
Technical Specifications
| Parameter | Value |
| Density (20°C) | 1.05 – 1.10 g/cm³ |
| Viscosity (25°C) | <100 mPa.s |
| Shelf Life | Minimum 24 months |
| Storage | 10°C – 30°C |
Application Areas
| Industry | Examples | Function |
| Personal Care | Shampoos, conditioners, body washes | Broad-spectrum preservative |
| Hair Care | Styling gels, creams | Bacterial control agent |
| Household Care | Hand soaps, detergents | Antimicrobial stabilizer |
Advantages
Effective broad-spectrum antimicrobial action
Particularly strong against gram-positive and gram-negative bacteria
Compatible with surfactant-based systems
Long shelf life and cost-effective formulation
Suitable for rinse-off applications
Packaging & Storage
| Feature | Specification |
| Packaging Options | 25 kg or 200 kg drums |
| Shelf Life | Minimum 24 months |
| Storage Conditions | Store in a cool, dry place (10–30°C) |
| Transport Classification | Non-hazardous liquid |
Safety & Handling
Avoid contact with eyes and prolonged skin exposure
Use appropriate PPE when handling
Store sealed and protected from heat and light
Dispose of in accordance with local environmental regulations
Conclusion
UNICARE DH / DH2 is a reliable and economical preservative system ideal for rinse-off personal care applications. It offers effective microbial protection and stability, especially in high-moisture and surfactant-rich environments.
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