Mingyi silicone（anhui）co,.ltd
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In modern cosmetic formulation, consumers increasingly expect products that deliver not only visible radiance but also a comfortable, lightweight sensory experience. Gloss alone is no longer enough—products must feel soft, non-greasy, and suitable for daily use. IOTA 556 Phenyl Methyl Silicone Oil is developed precisely to meet these expectations.
IOTA 556 is a medium-to-low viscosity phenyl methyl silicone oil designed to provide a balance between natural gloss and excellent skin feel. By incorporating phenyl groups into the silicone backbone, it offers enhanced optical properties compared with conventional dimethicone, while maintaining softness and spreadability.
With a refractive index of approximately 1.46, IOTA 556 delivers a gentle, refined shine—clearly brighter than standard silicone oils, yet more subtle and natural than high-phenyl silicone systems. This makes it especially suitable for everyday cosmetic products.
INCI Name: Phenyl Methyl Silicone Oil
Appearance: Clear, colorless liquid
Viscosity (25°C): 20–22.5 mm²/s
Refractive Index: ~1.46
Specific Gravity: ~1.03
Volatility: Very low
Recommended Use Level: 0.1–30%
These characteristics define IOTA 556 as a sensory-enhancing silicone, supporting both aesthetics and user comfort.
The phenyl groups contribute improved refractive properties, while methyl groups ensure flexibility and softness. This structural balance allows IOTA 556 to enhance appearance without creating heaviness or excessive oiliness.
Unlike high-phenyl silicone oils designed for dramatic shine, IOTA 556 produces a more natural radiance, ideal for skincare and daily makeup products.
On skin and hair, IOTA 556 forms a smooth, continuous film that enhances softness, slip, and overall comfort, without leaving a greasy residue.
Its balanced molecular design allows good compatibility with a wide range of cosmetic oils, silicones, and active systems.
Used in lotions, creams, serums, and sprays, IOTA 556 improves spreadability, reduces tackiness, and provides a healthy, soft-focus glow.
In shampoos, conditioners, hair oils, and sprays, it enhances smoothness and natural shine while maintaining a lightweight feel.
In foundations, primers, and lip products, IOTA 556 supports even application and a refined, natural-looking finish.
In sunscreen formulations, it helps improve sensory feel and daily wear comfort.
Compared with high-viscosity, high-phenyl products such as diphenyl dimethicone, IOTA 556 emphasizes comfort and natural aesthetics, making it ideal for everyday-use cosmetics rather than dramatic high-gloss formulations.
IOTA 556 Phenyl Methyl Silicone Oil offers formulators a versatile solution that bridges performance and comfort. By delivering natural radiance, smooth application, and excellent sensory properties, it stands out as a valuable ingredient for modern skincare, hair care, and makeup products focused on everyday beauty and user satisfaction.
