Mesoporous Silica for Cosmetics
Mesoporous Silica for Cosmetics
KOSNANO offers QS-K series Mesoporous Silica for makeup, personal care and soft-focus skin care formulas. Its spherical particles help powder spread more smoothly, while the mesoporous structure supports oil adsorption. The 0.2-5µm silica particle size range is designed for a lighter feel and a finer soft-focus effect.
When used in loose powder, pressed powder, liquid foundation, sunscreen or primer, the main checks are usually oil control, slip, whiteness, dispersion and stability. This Powder Silica has 99.9% SiO2 and 95-98% whiteness. Surface treatment can also be adjusted when the formula needs it.

The Advantages of Our Products
Spherical Structure for Smooth Spreading
The Spherical Silica particles roll more easily in powder systems. This helps reduce drag and roughness during application. In loose powder, pressed powder or foundation, the result is a smoother touch and a lighter makeup feel.
Porous Structure for Oil Adsorption
The Porous Silica structure provides more adsorption sites and is suitable for absorbing sebum and oil-phase components in the formula. It can help reduce greasiness in oil-control loose powder, long-wear foundation, sunscreen and cream systems.
Fine Particle Size for Soft Focus
The 0.2-5µm particle size range gives the powder a finer touch. It also helps create softer light scattering on skin when a matte finish, soft focus and low-powdery after-feel are required.
Specifications
| Item | Specification |
|---|---|
| Model | QS-K series |
| Product Name | Mesoporous Silica powder for cosmetics / spherical porous silica powder |
| CAS | 14808-60-7 |
| Average Pore Size | 5-20 nm |
| Porosity | 1.5 |
| Material | SiO2 |
| Silicon Dioxide Content | 99.9% |
| Whiteness | 95-98 |
| Particle Size Range | 0.2µm-5µm |
| Surface Treatment | Custom surface treatment available according to formula requirements |
Suitable Formulas
- Loose powder and setting powder: improve slip, oil control and matte soft focus.
- Pressed powder and compact powder: help the powder spread more evenly and feel lighter on skin.
- Liquid foundation and cream foundation: reduce greasiness and support long wear with a softer visual finish.
- Sunscreen and primer: reduce tackiness and improve the dry touch after film formation.
- Soft-focus skin care lotion: support instant touch improvement and visual smoothing.
Available Grades
| Standard Grade | Particle Size Options | Modification Direction |
|---|---|---|
| Porous spherical silica 5µm | 0.2µm, 0.3µm, 0.5µm, 2µm, 3µm, 5µm | Hydrophilic, lipophilic or imported modifier option |
| Spherical Silica for cosmetics | 2µm, 3µm, 5µm | Adjusted for powder, emulsion or oil-phase systems |
| High Purity Silica powder | 10µm, 20µm, 30µm, 40µm | For specific non-skin-feel applications after evaluation |
Quality Control
Our team controls the particle size distribution, whiteness, oil absorption, pore structure, heavy metals and microbiology of each batch of Porous Silica. The goal is batch stability. We can also provide documents your market may require, including MSDS and COA.
During formula testing, please pay attention to slip, oil-control time, dispersion, powder floating, caking and emulsion stability. KOSNANO supports sample testing and specification discussion. You can share the formula type, dosage range, target skin feel and benchmark sample, and we will recommend a suitable particle size and surface treatment.
FAQ
Is Porous Silica suitable for oil-control cosmetics?
Yes. The porous structure helps absorb sebum and oil-phase components. This is why it is often used in loose powder, foundation, sunscreen and primer. Still, a higher oil absorption value does not automatically mean a better skin feel. The final dosage should be tested in your own formula.
What does the 0.2-5µm silica particle size mean?
A fine particle size can give the formula a more delicate touch and a softer makeup effect. You should also check powder morphology, pore structure, surface treatment and dispersion method in the same formula.
Can it be made lipophilic or surface modified in other ways?
Yes. QS-K series supports surface modification. The hydrophilic-lipophilic balance can be adjusted for powder, cream, oil-phase or sunscreen systems.
Do you provide samples?
KOSNANO can provide samples for testing. Please tell us the application type, target skin feel, expected dosage and whether you need an imported modifier option. We will recommend a suitable grade first, then arrange sample delivery.
Send Your Cosmetic Formula Requirements
If you are developing oil-control loose powder, soft-focus foundation, sunscreen or primer, send us the formula type, target skin feel, oil-control requirement and estimated purchase volume. KOSNANO can provide samples, TDS, grade suggestions and modification options for spherical porous SiO2 for cosmetics.
