Core Characteristics and Properties

Phenyl Methyl Cosmetic Silicone Oil IOTA556, known by its INCI name Phenyl Trimethicone and chemical name Polymethylphenylsiloxane, is a valuable asset for cosmetic formulators. This ingredient is a colorless liquid with stable physicochemical properties. At 25℃, it exhibits a viscosity of 22.5, a specific gravity of 0.980, and a refractive index of 1.46. Its flash point is above 100℃, and the acid value is a mere 0.1 mg KOH/g. These consistent parameters provide a reliable foundation for high-quality product development.

Skin Feel and Formulation Compatibility

A key advantage of IOTA556 is its ease of emulsification, allowing it to integrate seamlessly into various formulation systems without requiring complex processes. It imparts a non-greasy, silky feel to the skin and possesses excellent anti-stick properties, preventing any tacky or uncomfortable after-feel. Additionally, its antioxidant nature contributes to the overall stability of the formulation. In terms of solubility, IOTA556 demonstrates good compatibility with alcohols. It is readily soluble in 95% ethanol and can even dissolve at concentrations up to 50% by weight at temperatures as low as 4℃, offering great flexibility for spray and gel formulations.

Diverse Application Scenarios

In skincare, IOTA556 is frequently used as a water-repellent additive in lotions, creams, and spray products. It helps form a breathable protective film on the skin, reducing moisture loss. In pre-shave lotions, it effectively lowers friction between the razor and skin, enhancing the smoothness of the shaving experience. In hair care, it is an ideal choice for hair gels, conditioners, and hair gloss agents. It adds natural shine and softness to the hair while reducing the tackiness of other organic ingredients, keeping hair feeling light and manageable.

Phenyl Methyl silicone oil IOTA 556-IOTA