In the modern personal care products industry, the skin-felt refreshing property and the stability of the formulation are often the challenges that formulators need to balance. Especially in products such as sun protection, moisturizing and makeup, how to stably disperse a large amount of water-based components into the silicone oil phase while maintaining a clear and light skin-felt texture is a core technical problem in high-end formulation development. Our company's product, the water-in-silicone oil emulsification stabilizer 99331, as a dispersing liquid of high-molecular-weight polyether silicone oil in cyclic silicone oil, with its excellent formulation additive performance and stabilizing effect, demonstrates significant market value in numerous applications such as moisturizing, moisturizing, sun protection and antiperspirant products, providing high-quality emulsification and stabilization solutions for the personal care products industry.


I. Core Physical and Chemical Properties of the Product


The product, water-in-silicone oil emulsification stabilizer 99331, is a milky liquid. At 25 degrees Celsius, its specific gravity ranges from 0.930 to 0.970, and its viscosity is 40 to 125 centistokes. The solid content is 10% to 14% under 120 degrees Celsius for two hours. This product is a dispersing liquid of high-molecular-weight polyether silicone oil in cyclic penta-di-methylsiloxane, specially designed for the cyclic silicone oil-in-water (i.e., water/cyclic silicone oil) formulation system. As a dispersing aid for polar and non-polar raw materials in the formulation, it enables non-polar raw materials to dissolve in the outer phase of the silicone oil and polar raw materials to dissolve in the inner phase of water.


II. Core Performance Advantages of the Product


The water-in-silicone oil emulsification stabilizer 99331, with its unique dispersing liquid structure, demonstrates the following core performance advantages in personal care product formulations:


Excellent formulation additive performance. In moisturizing, moisturizing, sunscreen, and antiperspirant products, it is a good formulation additive, effectively promoting the uniform dispersion and stable integration of various components in the formulation.


Outstanding oil-in-water stability. In oil-in-water formulations, it is a good stabilizer, significantly improving the long-term storage stability of the emulsified system and preventing stratification and demulsification.


Makes the oil-in-water formulation system clearer. It helps make the appearance of the oil-in-water formulation system clearer and more transparent, enhancing the visual appeal and market competitiveness of the product.


III. Wide Application Areas


The water-in-silicone oil emulsification stabilizer 99331, with its multi-functional performance combination, can play a key role in the following personal care product application areas, specifically including:


1. Makeup products. In foundation liquid, BB cream, primer, and pre-makeup lotion makeup formulations, it can be used as a dispersing aid and stabilizer, helping color pigments and dyes to be uniformly dispersed in the silicone oil system, ensuring the uniformity of the formulation color and the smoothness of application, and the recommended addition amount is 4% to 12%.


2. Skin care products. In skin care lotion, moisturizing cream, and essence products, it can help build a stable oil-in-water or water-in-silicone system, giving the product a refreshing silicone oil skin-felt and good moisturizing effect, improving the storage stability and usage experience of the formulation.


3. Sun protection products. In sunscreen lotion and sunscreen cream sunscreen care formulations, it can be used as a stabilizing aid, helping sunscreen agents to be uniformly dispersed in the system, improving the water resistance and long-lasting effect of the sunscreen.


4. Antiperspirant and deodorant. In antiperspirant and deodorant formulations, it can be used as a dispersing aid, helping active ingredients to be evenly distributed in the formulation, while giving the product a dry and light skin-felt.


IV. Usage Methods and Process Suggestions


Before using the water-in-silicone oil emulsification stabilizer 99331, it should be stirred evenly. Slowly pour the water phase into the oil phase and stir quickly. Increasing the stirring speed can improve the stability of the water-in-oil emulsion system, and increasing the water proportion can increase the viscosity of the system. Using a homogenizer can further improve the stability of the emulsion system. Adding electrolyte solutions to the aqueous phase can enhance the storage stability of the emulsion system. If there are no solid raw materials in the formula, the emulsification can be carried out at room temperature. The recommended addition amount is 4% to 12% of the total formula.


V. Packaging Specifications and Storage/Transport Conditions


Product Siloxane Water-in-Oil Emulsifier 99331 is packaged in 20-kilogram or 200-kilogram plastic drums. This product is non-hazardous. During storage and transportation, attention should be paid to moisture prevention and avoiding the mixing of acidic, alkaline or other impurities. The shelf life is one year under sealed and room temperature conditions.


VI. Quality Assurance and Industry Application Value


Product Siloxane Water-in-Oil Emulsifier 99331 has established a strict quality control system during the production process. Key indicators such as product appearance, specific gravity, viscosity and solid content are tested throughout the process to ensure consistency and reliability between batches.


As skincare products, sun protection and makeup products continue to develop towards a refreshing sensation, high stability and clear appearance, the demand for silicone oil-water emulsifiers with both efficient stability and light skin feel is steadily increasing. Product Siloxane Water-in-Oil Emulsifier 99331, with its unique high-molecular-weight polyether silicone oil dispersion structure, excellent formulation stability performance and wide applicability in personal care products, is becoming an important auxiliary agent option in the development of makeup, skincare and sun protection products, providing strong support for promoting the domestic personal care product industry towards high-quality development.