In the ongoing process of upgrading the personal care products industry towards lighter skin feel, refreshing experience and simplified formulations, small molecule organic siloxanes with excellent volatility, physiological inertness and high solvent compatibility are becoming indispensable basic components in the formulations of skin care, makeup and hair care products. The product we have launched, octyl poly methyl siloxane, with the INCI name of octyl poly methyl siloxane, as a medium volatility silicone oil with a volatility rate close to D6, demonstrates broad market value in numerous personal care applications such as skin care, sun protection, makeup, deodorization and hair conditioning, providing high-quality volatile conditioning carrier options for the personal care industry.


I. Core Physical and Chemical Properties


The octyl poly methyl siloxane product is a colorless transparent liquid. At 25 degrees Celsius, its refractive index ranges from 1.4050 to 1.4150, and its relative density is from 0.800 to 0.900, with a viscosity of 2 to 4 centipoises. This product is a small molecule organic siloxane with two core characteristics: physiological inertness and high solvent compatibility. Its volatility is similar to that of D6, belonging to medium volatility silicone oil. The octyl (i.e., octyl group) is connected in a branched form to the middle silicon atom of the tri-siloxane structure, giving it unique spreading properties and compatibility with various organic components, making it a good additive for silicone and hydrocarbon oils. It is insoluble in water but can be miscible with most organic solvents such as ethanol and toluene, and has good compatibility with various cosmetic components such as natural oils.


II. Core Performance Advantages


The octyl poly methyl siloxane product demonstrates the following core performance advantages in personal care product formulations:


Excellent conditioning and dry skin sensation. The product has strong conditioning effects on the skin and hair, providing a dry and refreshing feeling, and a soft and smooth touch experience. As a low viscosity and low surface tension fluid, it can quickly spread, providing excellent application properties for the formula, reducing the viscosity and greasiness of the formula, and reducing the stickiness of other oily ingredients.


High solvent compatibility and volatility. The product has excellent organic solvent compatibility and a volatility rate similar to D6. As a volatile carrier, it can gradually volatilize after application, releasing the active ingredients on the skin surface without leaving greasy residues.


Physiological inertness without irritation to the skin and hair. The product has physiological inertness and no irritation or adverse effects on the skin and hair, with high safety, suitable for all skin types, and has been included in China's "List of Used Cosmetic Raw Materials".


III. Wide Application Areas and Recommended Dosages


The octyl poly methyl siloxane product, with its volatile carrier function, can play an important role in the following personal care product application areas:


1. Skin care products. The product can be used as a carrier or additive in skin care formula products such as moisturizing creams, gels, makeup removal products, and cleansing lotions, improving the spreading properties and skin sensation of the formula, reducing stickiness, and giving the skin a dry and smooth touch.


2. Sun protection products. The product can be used as a dispersing medium for hydrophobic powders and pigments, helping to evenly disperse physical sunscreen agents and improving the spreading properties and refreshing skin sensation of the sunscreen products.


3. Makeup products. In makeup formula products such as foundation lotions and lipsticks, the product can promote the uniform dispersion of color pigments, improve the smoothness and adherence of the makeup, and give the product a light and long-lasting usage experience.


4. Antiperspirant and deodorant products. The product can be used as a volatile carrier in antiperspirant and deodorant formulas, providing a dry skin sensation and helping to slow down the release of fragrances.


5. Hair conditioning products. In non-washable hair care products, the products can provide hair with a dry and smooth conditioning effect, improve manageability and luster, and do not increase hair weight.


Recommended usage: The recommended usage of this product is 0.5% to 20% of the total formula. Customers can determine it based on their actual needs.


IV. Usage Method


The product can be used directly as a carrier or main raw material, or as an additive; it can also be applied in water-based systems through emulsification. The specific usage method depends on actual requirements.


V. Quality Assurance and Industry Application Value


The octyl polydimethylsiloxane in the product has established a strict quality control system during production. Key indicators such as product appearance, refractive index, relative density, and viscosity are tested throughout the process to ensure consistency and reliability between batches. As the personal care product industry continues to develop towards a refreshing sensation, lightweight experience, and safe formula, the demand for silicone oil raw materials with volatility, compatibility, and conditioning functions is steadily increasing. The octyl polydimethylsiloxane, with its excellent skin sensation performance, wide formula applicability, and safe and stable quality assurance, is becoming an important basic raw material option in the development of skincare, makeup, sunscreen, and hair care products, providing strong raw material support for promoting the domestic personal care product industry towards high-quality development.