Trimethylsiloxysilicate is an organosilicon compound that typically exists as a colorless or pale yellow liquid. It is composed of elements such as silicon (Si), oxygen (O), and carbon (C), and its molecular structure contains a trimethylsiloxy (SiO) group. Due to its unique chemical structure, it offers excellent stability, heat resistance, and waterproof properties, making it a key ingredient in many high-end skincare and makeup products.

Long-lasting: It forms a protective film on the skin's surface, enhancing the durability of cosmetics and helping makeup stay intact for long periods.
Waterproof: Effectively prevents sweat and moisture from affecting cosmetics, ensuring a more stable makeup look.

Improved Texture: It makes cosmetics smoother and silkier, providing a more effortless application and avoiding a greasy feeling.
Enhanced Stability: It increases the product's antioxidant properties and heat resistance, extending the product's shelf life.
Concealing Effect: Helps improve the appearance of skin by covering fine lines and imperfections, leaving the skin smoother and more even.
Foundation Products
In foundation liquids, BB creams, CC creams, and other base makeup products, trimethylsiloxysilicate is a key ingredient for enhancing product durability and achieving a flawless finish. It boosts makeup's longevity and waterproof properties, ensuring the makeup stays intact even in hot or humid conditions. This ingredient helps cosmetics resist sweat and humidity, making it ideal for summer or rainy weather.
Eye Makeup
Trimethylsiloxysilicate is also commonly found in eyeshadows, mascaras, and eyeliners. It enhances the adhesion of these products, ensuring that eye makeup lasts longer and preventing smudging due to tears or oils. It also improves the texture of eyeshadow, giving a smoother and more even application.

Lipsticks and Lip Gloss
In lipsticks and lip glosses, trimethylsiloxysilicate helps the product glide on more smoothly, improving color uniformity while increasing the product's longevity. It helps lip color remain vibrant for a long time, avoiding fading or cracking.
Sunscreen Products
In sunscreens, trimethylsiloxysilicate improves the stability and waterproof properties of the sunscreen film, enhancing the overall sun protection effect. This makes it more effective during outdoor activities or water sports, reducing the risk of sunscreen failure due to sweating or swimming.
In conclusion, trimethylsiloxysilicate in cosmetics stands out for its excellent waterproof, long-lasting, smooth, and stable properties. It has become an indispensable ingredient in modern cosmetics. Whether in foundation, eye makeup, lip makeup, or sunscreen products, it significantly improves the performance of cosmetics, meeting consumers' demand for long-lasting makeup and comfort. If you're aiming for a long-lasting, flawless look, consider cosmetics containing trimethylsiloxysilicate, and enjoy makeup that stays fresh and perfect all day.
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| Product Information | Details |
|---|---|
| Product Name | SiSiB® PC11258 Trimethylsiloxysilicate |
| INCI Name | Trimethylsiloxysilicate |
| Appearance | Solid powder |
| Volatility | Maximum 2% |
| Bulk Density | 0.56-0.61 g/cm³ |
| Solubility | Soluble in xylene, toluene, hexamethyldisiloxane (MM), cyclomethicone (D4, D5, D6), alcohol, isopropanol, low viscosity silicone oils; insoluble in water |
| Production Process | Environmentally friendly, does not require toluene and xylene |
| Attributes | Durable, excellent water resistance, detergent wash resistance |
| Applications | Protective skin products, sunscreens, hair care products, facial cosmetics, lotions and creams, makeup products; Usage: pre-mix in low viscosity silicone oils or cyclopentasiloxane, and add to the oil phase of the formulation |
| Packaging | 25 kg paper drum, 120 kg steel drum |
| Shelf Life | 2 years in original unopened packaging, stored in a dry and cool place |