News Letter

Hello, this is Sunjin Beauty Science.

What defines a great skincare product?
One that delivers lasting hydration without stickiness, glides smoothly onto the skin, absorbs quickly, and leaves a fresh, non-greasy finish. Today’s consumers consider skin feel just as important as efficacy when choosing skincare products.
To achieve the desired sensory experience, formulators often rely on a variety of ester oils and powders. Surprisingly, however, silica is still widely perceived as an ingredient primarily for makeup, limiting its use in skincare applications.
In reality, silica can be a powerful solution for skincare as well—provided that the particle size is different.

Why hasn't silica been widely used in skincare?

Silica is well known for its excellent sebum absorption and its ability to create a smooth, powdery skin feel. However, conventional silica has long presented one major challenge in skincare formulations: balling up.

Skincare formulations typically rely on polymeric thickeners such as Carbomer, Acrylates Copolymer, and Xanthan Gum to build viscosity and maintain formulation stability.
When conventional silica with a particle size of 7–15 μm is incorporated, the particles can interfere with the polymer network, causing the formula to pill or ball up on the skin during application.
As a result, many formulators have regarded silica as an ingredient that offers excellent sensory performance but is difficult to use in skincare.
The real issue, however, was never silica itself—it was the particle size.

2 μm Changes the Possibilities of Skincare

To expand the application of silica in skincare, Sunjin Beauty Science developed 2 μm silica beads.
With their ultra-fine particle size, the 2 μm silica beads disperse uniformly throughout the formulation without disrupting the polymer thickener network, minimizing balling even during application on the skin. The difference was clearly demonstrated in a comparative study using the same lotion formulation containing silica particles of three different sizes.

* 2μm Silica: No balling observed for 60 seconds.
* 7 μm & 15 μm Silica: Balling occurred within 30 seconds after application.

The issue was never that silica couldn't be used in skincare.
The conventional silica particles were simply too large.

What Can Silica Do for Skincare?

Silica is far more than just a filler. In skincare formulations, it delivers multiple functional benefits at the same time.
✔ Reduces tackiness for a fresh, non-greasy finish
✔ Absorbs excess sebum to help control unwanted shine
✔Provides a soft-focus effect to visually blur pores and improve skin texture
✔ Enhances sensory feel, making even rich formulations feel lighter on the skin
✔ Boosts SPF performance, improving the efficiency of sunscreen formulations
With a single ingredient, formulators can significantly enhance the skin feel—the attribute consumers notice most immediately.

Sunjin Beauty Science's 2 μm Silica Solutions

1. SUNSIL-20
The Standard 2 μm Silica for Skincare
A porous hydrophilic silica that delivers outstanding oil absorption while minimizing balling in skincare formulations.

2. SH305
Enhanced Sensory Feel with Added Functionality
Based on 2 μm silica technology, SH305 provides both a soft-focus effect and SPF-boosting performance, enhancing both aesthetics and formulation efficacy.

3. SUNSIL-OLEO20
A naturally lipophilic silica coated with Cetyl Alcohol.
It absorbs excess sebum without leaving the skin feeling dry, while reducing the characteristic powdery feel of conventional silica to create a smooth, velvety skin feel.

It's Time to Choose Silica for Skincare.

Creating an exceptional skincare product is not simply about adding more high-performance ingredients.
What truly defines consumer satisfaction is the skin feel experienced from the very first application.
By overcoming the limitations of conventional silica, 2 μm silica minimizes balling while delivering a superior sensory experience—offering a new solution for modern skincare formulations.
From silica for makeup to silica for skincare.
Discover a new standard in skincare with Sunjin Beauty Science's 2 μm Silica Technology.

Q&A

Q1. Doesn't silica cause balling in skincare formulations?
A. Conventional silica with a particle size of 7–15 μm can interfere with the polymer thickener network, potentially causing balling during application.
However, 2 μm silica features ultra-fine particles that disperse uniformly throughout the formulation and minimize particle agglomeration on the skin, effectively reducing balling.

Q2. Doesn't silica reduce emulsion stability in W/O formulations?
A. Conventional hydrophilic silica may gradually migrate from the oil phase (external phase) to the water phase (internal phase) in W/O emulsions, potentially destabilizing the interface over time.
Sunjin Beauty Science's 2 μm silica utilizes Amphiphilic Surface Technology, combining both hydrophilic and lipophilic properties to remain stably positioned at the interface.
As a result, it can be used reliably in both O/W and W/O formulations, maintaining emulsion stability while delivering excellent sensory performance.

Q3. Doesn't silica make the skin feel dry?
A. Conventional porous silica can absorb not only excess oil but also reduce the skin's perceived moisture, which may leave the skin feeling dry.
However, not all silica is the same. SUNSIL-OLEO20 is a Natural Lipophilic Silica coated with Cetyl Alcohol. It effectively absorbs excess sebum while reducing the dry, powdery feel typically associated with conventional silica, leaving the skin with a smooth, velvety finish. The result is effective shine control without compromising skin comfort.

Q4. Which formulations are suitable for 2 μm silica?
A. 2 μm silica can be incorporated into a wide range of formulations, including essences, lotions, creams, sunscreens, tone-up creams, cushion foundations, and primers.
Depending on the desired functionality, you can choose the most suitable product from our 2 μm silica portfolio.

* SUNSIL-20 : Minimizes balling and provides a fresh, non-greasy skin feel.
* SH305 : Soft Focus + SPF Booster
* SUNSIL-OLEO20 : PMMA alternative with a velvety touch and effective sebum control.