Hello, this is Sunjin Beauty Science.
We're pleased to introduce our ZINA Dispersion, engineered to simultaneously satisfy viscosity control, whitening reduction, and UV protection performance.
Directly dispersing ZnO powder into oil can make it difficult to achieve uniform dispersion, and may cause issues such as increased whitening due to high viscosity and particle agglomeration, leading to poor SPF reproducibility.

In particular, when dispersing high-concentration ZnO powder directly, significant variation in finished product quality can occur depending on manufacturing equipment, dispersion conditions, and processing time.

Sunjin Beauty Science's high-concentration ZnO dispersions are a Formulator-Friendly solution that pre-controls these process variables to enhance finished product quality and stability.
The ZINA-75 Dispersion Series applies Sunjin's proprietary surface treatment technology and high-concentration dispersion system to achieve exceptionally low viscosity and outstanding clarity even at ZnO concentrations of 72~75%.

[TiO₂ & ZnO Dispersion Line-up] Versatile dispersions compatible with diverse oil systems

The skin feel and stability of inorganic UV filters depend not only on the inherent properties of TiO₂ and ZnO themselves, but also significantly on the oil system in which they are dispersed. The suncare market increasingly demands more than simple UV protection — lightweight application, reduced whitening, formulation stability, and formulation flexibility are all required simultaneously. In response, we have built a TiO₂ & ZnO Dispersion line-up optimized for oil bases with varying polarity and sensory profiles, enabling our customers to choose freely according to their formulation concept.

[ZnO Line UP] Tailored ZnO Dispersions: Choose the Optimal Formulation

To help you select the best fit for your product concept and target skin feel, we offer a full range of high-concentration dispersions from Net ZnO 62% up to 75%.

1. [ZINA-75 Series] The Perfect Balance of Superior Skin Feel and High Concentration
Our most versatile, widely applicable flagship line-up.
ZINA-75D: Dimethicone-based, featuring a silky finish. (Net ZnO 75%)
ZINA-75CC: Formulated with dicaprylyl carbonate for a light, refreshing application.
ZINA-75CCTG / 75B / 75AB: Based on versatile oils such as CCTG and dibutyl adipate, easily applicable across a wide range of formulations.

2. [OLEO & SUNCLEAR] The Clean Beauty Choice
For sustainability and clean beauty concepts, we recommend the following line-up.
OLEO-Z75C5C: An eco-friendly solution certified under EWG, COSMOS, and RSPO standards.
Z65M: With reduced emulsifier content, suitable for both O/W and W/O systems and optimized for clean beauty formulations.

[Performance] The "Cheat Code" for High-SPF Inorganic Sunscreens: ZINA-75CC & UV Booster Combination

Discover Sunjin Beauty Science's Zinky 15 Cream (ZnO 15%) formulation — delivering higher UV protection efficiency with lower active content.

1. ZINA-75CC: Redefining the Standard for High-Concentration Dispersions
ZINA-75CC is a high-concentration dispersion with 75% ZnO uniformly dispersed. Sunjin's surface treatment technology enhances particle stability, providing both high UV protection efficiency and excellent formulation quality.
2. UV Booster Duo: The Supporting Cast That Drives a "Performance Leap"
Two key boosters that push the performance of ZINA-75CC to its limits.

• SH305 (Scattering Silica): A 2 μm scattering silica designed to maximize UV scattering efficiency. Sunjin's proprietary microstructure design further elevates UV protection performance.
• SFGEL (3D Cushioning Gel): A dextrin palmitate-based 3D structured gel that supports uniform alignment and dispersion stability of inorganic UV particles, contributing to a more refined UV film formation. It also imparts a soft cushioning feel and blurring effect, improving overall skin feel.

[Smart Factory Facilities] World-Class Production Facilities and Quality Management

Sunjin Beauty Science delivers stable, high-quality dispersion solutions, backed by a globally recognized quality management system having passed FDA inspections twice, and a smart factory-based production infrastructure.
Beyond simply supplying inorganic UV filter ingredients, we aspire to be your Total Solution Partner, working alongside you to address formulation stability, skin feel, and UV performance

🔎 Summary FAQ
■ Q1. Why is it advantageous to use a dispersion instead of ZnO powder?
A. Directly dispersing ZnO powder can lead to issues such as high viscosity, particle agglomeration, increased whitening, and SPF variation. ZINA dispersions incorporate optimized surface treatment and dispersion systems to ensure uniform particle distribution and consistent SPF performance.

■ Q2. Why is the viscosity low despite the high ZnO concentration?
A. Sunjin Beauty Science's proprietary surface treatment technology and optimized dispersion design minimize inter-particle agglomeration, enabling excellent flowability and a lightweight skin feel even at ZnO concentrations of 75%.

■ Q3. Are there products suitable for clean beauty concepts?
A. OLEO-Z75C5C is an eco-friendly dispersion developed in consideration of EWG, COSMOS, and RSPO standards, while Z65M, with its reduced emulsifier content, is applicable to a wide range of clean beauty formulations.

■ Q4. Is it possible to manufacture ZnO/TiO₂ dispersions at USP Grade level?
A. Yes. Based on our manufacturing system and quality management capabilities — having passed FDA inspections twice — Sunjin Beauty Science is equipped to produce TiO₂ and ZnO dispersions meeting USP Grade standards. We operate a globally aligned production system covering everything from raw material selection to manufacturing processes and quality control, and can also support customized development tailored to your required specifications and regulatory compliance needs.

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If you have any inquiries regarding the related products, please feel free to contact us using the information below.

Areum Jeong / Regional Sales Manager
E-mail : sales1@sunjinbs.com