In the formulation design of personal care products such as skin care products, cosmetics, and sunscreen products, the sensory experience and the efficacy of active ingredients are often the core indicators for evaluating the quality of the products. The composite silicone oil raw material with high film-forming property, excellent spreading property, and active ingredient affinity is becoming an important tool for formulators to achieve a balance between sensory experience and efficacy. Our company's product 1403, a blend of polydimethylsiloxane and polydimethylsiloxane alcohol, is a transparent liquid with an organic silicon content of no less than 99%. The silicone gel (polydimethylsiloxane alcohol) content is 12% to 14%, the viscosity is 4,000 square millimeters per second at 25 degrees Celsius, the closed-cup flash point is 135 degrees Celsius, the specific gravity is 0.93, the solubility in water is less than 0.1%, and the content of ring tetramethylsiloxane is less than 2%. This product is a blend of high-viscosity polydimethylsiloxane alcohol and low-viscosity polydimethylsiloxane, through the synergistic effect of the two, it retains the excellent film-forming property and smooth touch of high-molecular-weight polydimethylsiloxane alcohol, and achieves good processing fluidity and spreading property by leveraging the carrier effect of low-viscosity polydimethylsiloxane. The D4 ring body content of less than 2% meets the strict requirements of the personal care industry for ring body residue, providing reliable guarantee for the safety of the formula.


1. Core physical and chemical properties of the product


The product polydimethylsiloxane and polydimethylsiloxane alcohol blend 1403 is a transparent liquid, with an organic silicon content of no less than 99%. The silicone gel (polydimethylsiloxane alcohol) content is 12% to 14%, the viscosity is 4,000 square millimeters per second at 25 degrees Celsius, the closed-cup flash point is 135 degrees Celsius, the specific gravity is 0.93, the solubility in water is less than 0.1%, and the content of ring tetramethylsiloxane is less than 2%. This product is a blend of high-viscosity polydimethylsiloxane alcohol and low-viscosity polydimethylsiloxane, through the synergistic effect of the two, it retains the excellent film-forming property and smooth touch of high-molecular-weight polydimethylsiloxane alcohol, and achieves good processing fluidity and spreading property. The D4 ring body content of less than 2% meets the strict requirements of the personal care industry for ring body residue, providing reliable guarantee for the safety of the formula.


2. Core performance advantages


The product polydimethylsiloxane and polydimethylsiloxane alcohol blend 1403, with its unique composite structure, exhibits the following core performance advantages in personal care product formulas:


Enhancing the affinity and persistence of active ingredients. The high-molecular-weight polydimethylsiloxane alcohol in the product can form a uniform and breathable protective film on the skin surface, which helps to improve the adhesion and persistence of other active ingredients on the skin, allowing moisturizing, sun protection, and nourishing ingredients to function for a longer time.


Excellent spreading property and smooth skin sensation. The low-viscosity polydimethylsiloxane acts as a carrier, providing the product with excellent spreading property and smooth application feel, making creams and lotions easy to spread on the skin, while bringing a smooth, non-greasy skin sensation. It forms an anti-water and breathable film on the skin, achieving water retention and moisturization while not blocking pores, maintaining the natural breathing of the skin.


3. Wide application fields


Product polydimethylsiloxane and polydimethylsiloxane alcohol blend 1403, with its multi-functional performance combination, can play a key role in the following personal care product application fields, specifically including:


1. Hand and body lotion. In hand cream and body lotion, the product can effectively improve the extensibility and skin sensation of the formula, giving the skin a soft and smooth touch, while helping other moisturizing and nourishing ingredients to remain on the skin for a longer time.


2. Makeup products. In makeup formulas such as foundation liquid, primer, and makeup base, the product can enhance the smoothness and adhesion of the formula, helping color powder to be evenly dispersed, making the makeup more natural and smooth. It can also give the product a glossy and aesthetic feel, enhancing the makeup effect and texture.


3. Sun protection products. In sunscreen and sunscreen lotion, the product can form a uniform protective film on the skin surface, helping the sunscreen agent to be evenly covered, while providing a light and non-greasy usage experience.


4. Moisturizing cream and lotion. Among various moisturizing creams and skin care lotions, the products can synergistically enhance the moisturizing effect and skin sensation experience of the formula, resulting in a moisturizing but not greasy skin sensation after application, and improving the comfort of use.


5. Shower Gel. In cleaning products such as shower gel, the product can improve the skin sensation during use, giving the skin a smooth and non-tightening touch after washing.


4. Usage Suggestions and Process Guidance


When using the product copolymer 1403, which is a mixture of polydimethylsiloxane and polydimethylsiloxane alcohol, a high-speed stirrer should be used. After the cream emulsification is completed, a homogenizer should be used to process it to obtain a uniform and fine cream texture to ensure that the product is fully dispersed in the formula and performs at its best.


5. Packaging Specifications and Storage Conditions


The product should be stored in an unopened original container at a temperature of 25 degrees Celsius or lower. This product should not be used for human injection and should not be used for consumption. It has not been tested and is not clearly declared to be applicable for medical or pharmaceutical uses.


6. Quality Assurance and Industry Application Value


The product copolymer 1403 of polydimethylsiloxane and polydimethylsiloxane alcohol has established a strict quality control system during production. Key indicators such as organic silicon content, silica content, viscosity, flash point, and D4 ring body content are monitored throughout the process to ensure consistency and reliability between batches.


As the personal care product industry continues to develop towards more refined skin sensations and longer-lasting effects, the demand for composite silicone oil raw materials with dual functions of film-forming conditioning and spreading enhancing has steadily increased. The product copolymer 1403, with its synergistic combination of high-viscosity silica and low-viscosity silicone oil, is becoming an important functional raw material option in skincare, makeup, and sunscreen product development, providing strong support for promoting the quality upgrade and formula innovation of the domestic personal care product industry.