IOTA 9939 PEG-12 Dimethicone is a non-ionic, polyether-modified silicone surfactant that offers a unique combination of silicone smoothness and water-soluble properties. Through the incorporation of ethylene oxide and propylene oxide chains into a polydimethylsiloxane backbone, this ingredient achieves remarkable surface activity, making it an effective emulsifier for silicone oils and various oil phases in cosmetic formulations.

Its key benefits include excellent emulsifying capacity, reduction of surface tension, and enhancement of spreadability. The product exhibits good water solubility, anti-static effects, and foam-stabilizing characteristics, while remaining mild and non-irritating to the skin. Physically, it appears as a colorless to slightly yellowish transparent fluid with a refractive index of 1.4500–1.4600, specific gravity of 1.070–1.080, and viscosity ranging from 250 to 500 cSt at 25°C. Its cloud point exceeds 80°C, ensuring clarity and stability under normal usage conditions.

In application, PEG-12 Dimethicone is widely used in facial lotions, creams, hair styling sprays, makeup, and sun protection products. A dosage of 1-3% is typically sufficient to stabilize emulsions and improve sensory feel. It can also be combined with film-forming polymers in hair care formulations to enhance hold and texture. With its multifunctional performance and skin-friendly nature, this material serves as a reliable and versatile ingredient in the development of high-quality personal care products.