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**Diethylamino hydroxybenzoyl hexyl benzoate (DHHB)**, also known as **Uvinul A Plus**, is a synthetic **oil-soluble UV filter** used in sunscreens and cosmetics. It provides **strong UVA protection (320–400 nm)**, helping prevent skin aging and damage. Unlike some UV filters, DHHB is highly **photostable**, meaning it doesn’t break down easily in sunlight. It’s gentle on sensitive skin, often combined with other filters for broad-spectrum defense. Approved in the EU and Asia (but not the US), it’s found in many high-end sunscreens, moisturizers, and makeup. Its chemical structure ensures long-lasting, water-resistant protection without irritation.
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).
Would you like recommendations for products containing DHHB?
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