Product Name: Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB)

CAS No.: 302776-68-7

Common Names: Uvinul A Plus, DHHB, UVA Absorber

Physical & Chemical Properties

Product Introduction

Diethylaminohydroxybenzoylhexyl benzoate (DHHB, Uvinul A Plus) is a highly effective UVA sunscreen agent with excellent photostability. It primarily absorbs long-wave UVA (320–400 nm), with a particularly strong absorption peak at 354 nm. It is a widely used oil-soluble sunscreen ingredient internationally.

DHHB exhibits excellent photostability, skin safety, and compatibility with various UV absorbers, and is commonly used in high-end sunscreen formulations, outdoor sports sunscreens, daily skincare, and makeup products.

Application Areas

1. Sunscreen & Skin Care: Widely used in SPF and PA sunscreen systems.

Excellent compatibility with UVB absorbers (such as octinoxate and octocrylene).

Improves the overall UVA protection index of the formula.

2. Foundation & BB Cream: Used in liquid foundation, cushion compacts, and primers to improve the stability of long-wave UVA protection.

3. Outdoor and Sports Sunscreen: High stability, not easily decomposed, improves long-lasting sun protection performance.

4. Anti-aging Skin Care: Blocks UVA-induced photoaging and deep skin damage.

Product Advantages

* Excellent photostability (not easily decomposed)

* Provides strong long-wave UVA protection

* Highly oil-soluble, easily dispersed in creams and oil-based products

* Low irritation and high safety, passed multiple international safety assessments

* Synergistic effect with UV filters such as Tinosorb S and Uvinul T 150

* Suitable for a wide range of cosmetic systems, with excellent compatibility

Company Advantages (Why Choose Us)

15+ years of experience exporting cosmetic raw materials

Providing high-purity DHHB, compliant with international cosmetic regulations

Factory equipped with ISO/GMPC production systems

Long-term stock availability, offering significant price advantages

Providing TDS/COA/MSDS and formulation support

Accepting OEM, small packaging, and bulk orders

Packaging and Storage

Packaging: 25kg/drum, 5kg/drum

Storage: Sealed, protected from light, and stored in a cool place.

Shelf Life: 24 months

Avoid high temperatures to ensure the stability of active ingredients.

FAQ (frequently asked questions)

Q1: Is DHHB safe for skin applications?

👉 Yes, DHHB is widely approved in many countries and has excellent skin compatibility.

Q2: What is the maximum allowable concentration in cosmetics?

👉 In many regions such as the EU, the maximum limit is 10%. (Check local regulations.)

Q3: Is DHHB water-soluble?

👉 No. It is oil-soluble and must be used in the oil phase.

Q4: Can DHHB be used with other UV filters?

👉 Yes, it works synergistically with both UVA and UVB absorbers.

Q5: Do you offer free samples?

👉 Yes, free samples (20–50 g) are available for formulation testing.