Diethylamino Hydroxybenzoyl Hexyl Benzoate UVA Plus CAS 302776-68-7 CAS NO.302776-68-7

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Diethylamino hydroxybenzoyl hexyl benzoate (DHHB), also known as **Uvinul A Plus**, is a **broad-spectrum UV filter** commonly used in **sunscreens** and **cosmetic formulations**. Its primary applications include:

### 1. **Sunscreen Protection**
   - **UVA Filter**: DHHB is particularly effective against **long-wave UVA rays (320–400 nm)**, which are responsible for skin aging and long-term damage.
   - **Photostability**: Unlike some older UV filters (e.g., avobenzone), DHHB is highly **photostable**, meaning it doesn’t degrade quickly under sunlight.
   - **Synergistic Effects**: Often combined with other UV filters (like octocrylene or Tinosorb S) to enhance **broad-spectrum protection (UVA + UVB)**.

### 2. **Cosmetic & Skincare Products**
   - Used in **moisturizers, foundations, BB creams, and anti-aging products** to provide daily UV protection.
   - Helps prevent **photoaging**, hyperpigmentation, and collagen degradation caused by UVA exposure.

### 3. **Advantages Over Traditional Filters**
   - **Low Irritation**: Suitable for sensitive skin (less likely to cause irritation compared to oxybenzone or octinoxate).
   - **Oil-Soluble**: Works well in **water-resistant** and **long-lasting** formulations.
   - **Regulatory Approval**: Approved in the EU, Asia, and other regions (but **not currently FDA-approved** in the US).

### 4. **Hair Care Products**
   - Some sun-protective **hair sprays and serums** use DHHB to shield hair from UV damage.

### **Why is it Preferred?**
- Provides **strong UVA protection** without degrading in sunlight.
- More **skin-friendly** compared to some chemical filters.
- Often used in **European and Asian sunscreens** (e.g., La Roche-Posay, Eucerin, Japanese/Korean brands).