IOTA 556, scientifically known as Polymethylphenylsiloxane, also called Phenylmethylsilicone oil, is a stable and high-performance silicone oil specifically designed for use in cosmetics.

It is widely used in skincare and hair care products due to its excellent tactile properties.

Key features of IOTA 556 include easy emulsification and excellent compatibility with cosmetic ingredients, as well as antioxidant properties. It provides a light, non-greasy feel when applied, ensuring a smooth and comfortable texture. Its anti-adhesion properties also make skincare products more refreshing after application.

In addition, IOTA 556 improves the gloss and softness of cosmetic and hair care products. In lotions, creams, shaving creams, and other products, it functions as a water-resistant additive, reducing stickiness. In hair styling products, such as hair gels and hair care treatments, it acts as a gloss enhancer, leaving hair looking smooth and shiny.

Typical properties of IOTA 556 include: a colorless liquid appearance, a viscosity of 22.5 (at 25°C), a specific gravity of 0.980 (at 25°C), a refractive index of 1.46 (at 25°C), a flash point higher than 100°C, and an acid value as low as 0.1. These features make it commonly used in the cosmetics industry, and it is stable when mixed with 95% ethanol at low temperatures.

When handling IOTA 556, it is recommended that users carefully read the safety instructions to ensure safe use. The product remains stable when stored in a sealed container, at room temperature or below 25°C, under proper storage conditions. IOTA 556 is available in packaging sizes of 25 kg and 200 kg, with a 200 g sample size available for testing and trials.

It is important to note that IOTA 556 is for cosmetic use only and is not intended for medical or pharmaceutical applications.