As clean beauty standards continue to rise and customers demand increasingly sophisticated skin feel, are you struggling to find the optimal formulation?
At SUNJIN Beauty Science, our goal for 2026 is clear: “To provide thoroughly validated data that delivers practical solutions to formulators’ technical challenges.”
As the first step of this mission, we are introducing our key lineup that makes it easy to achieve SPF 50 while overcoming the classic drawbacks of mineral sunscreens — white cast and heavy, draggy texture.
Of course, this solution also delivers outstanding synergy in organic UV filter and hybrid sunscreen systems.

SOLUTION 01. [Physical Scattering] SH305

SH305 is a 100% pure silica material developed with SUNJIN Beauty Science’s proprietary surface microstructure control technology. Its finely engineered micro-rough surface structure physically scatters incoming UV rays in multiple directions, extending the optical path length and acting as an effective UV-boosting aid. As a result, SH305 can significantly enhance in-vivo SPF performance without increasing the level of UV filters that directly absorb UV radiation. It is particularly effective in maximizing the efficacy of mineral sunscreen formulations while minimizing white cast.
In organic UV filter systems as well, SH305 promotes repeated absorption of scattered UV rays, improving the overall UV protection efficiency. This makes it a highly versatile ingredient across a wide range of sunscreen formulations.

SOLUTION 02. [Uniform Dispersion] SFGEL-M

If you want to create a perfectly adhering film without the use of silicone, SFGEL-M can be the ideal solution. Through the hydrophobic interactions of Dextrin Palmitate, this ingredient forms a strong 3D network structure within the formulation, helping UV filters remain uniformly dispersed and firmly fixed on the skin without aggregation.
In particular, the additional silica incorporated into SFGEL-M provides an extra light-scattering effect, further enhancing UV protection performance. As a result, it delivers optimized performance for silicone-free formulations that still require high SPF efficacy.

SOLUTION 03. [Solvent Synergy] SUNBOS

 SUNBOS (Butyloctyl Salicylate) is a high-efficiency SPF booster and a smart solvent that enhances formulation stability. With its excellent solvency, it rapidly and stably dissolves crystalline organic UV filters, helping secure formulation stability while maximizing filter performance to achieve target SPF levels with lower filter loading. In hybrid sunscreen systems combining both mineral and organic UV filters, SUNBOS also acts as a bridge between the two filter technologies, optimizing their synergy and enhancing the overall formulation performance. This makes it a highly efficient emollient for advanced sunscreen formulations.

SOLUTION 04. [Silica Capsule] SUNSIL-Tin50

 If you want to solve both white cast and regulatory concerns at the same time, SUNSIL-Tin50 is the solution to watch. This innovative ingredient features TiO₂ stably encapsulated within non-nano silica particles. Because the silica capsule itself is non-nano in size, it fully satisfies the non-nano concept while eliminating the heavy feel and whitening effect typically associated with conventional TiO₂, delivering exceptional transparency.
As a COSMOS-certified clean beauty ingredient, SUNSIL-Tin50 aligns perfectly with today’s sustainability trends. In addition, its unique capsule structure effectively scatters UV rays, elevating the performance and sensory quality of mineral and hybrid sunscreen formulations to the next level.

When SUNJIN’s filters and boosters work together, achieving SPF 50 becomes an expected result.

 There is no longer a need to sacrifice skin feel or struggle with excessive filter loading just to reach SPF 50.
Combine SUNJIN Beauty Science’s high-quality ZnO and TiO₂ with our innovative silica capsule technology and the four-step booster lineup introduced above. Together, they physically maximize UV protection efficiency while delivering an exceptionally smooth, lightweight texture that glides effortlessly onto the skin.
“Transparent and lightweight mineral SPF 50 — redefine the standard of sunscreen formulation with SUNJIN’s boosting solutions.”
Through the button below, you can access detailed in-vivo data reports and ready-to-use formulation guides for immediate application. If you require samples or technical consultation, please feel free to contact our technical team at any time.

🔎 Summary Q&A
■ Q1. What are the key mechanisms behind SUNJIN Beauty Science’s SPF boosting lineup?
A. The lineup is based on three key mechanisms.
First, optical scattering: the microstructured surface of SH305 extends the optical path length by scattering UV rays in multiple directions.
Second, 3D network dispersion: SFGEL-M prevents filter aggregation and forms a uniform application film.
Third, solubility optimization: SUNBOS enhances the effective concentration and performance of UV filters through superior solvency.

■ Q2. What is the recommended usage level of SH305 in formulations?
A. The optimal dosage of SH305 is 3%.
Based on repeated evaluations conducted by the SUNJIN Beauty Science R&D Center across various systems—including organic sunscreen formulations, O/W mineral sunscreens, and W/O mineral sunscreens—3% was confirmed to deliver the most effective and maximized SPF boosting performance.

■ Q3. What is the key formulation strategy for achieving SPF 50 in mineral sunscreen systems?
A. The most effective strategy is to use a high-quality ZnO (Zinc Oxide) dispersion as the base, combined with SH305 (3%) as a physical SPF booster and SFGEL-M (2–4%) as a dispersion stabilizer.
This combination minimizes white cast by reducing the total filter loading while simultaneously achieving stable in-vivo SPF 50+ performance through enhanced light scattering and uniform film formation.

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If you require samples for testing or detailed technical guidance, please feel free to contact us anytime using the information below.

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