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Anhui IOTA Silicone Oil Co., Ltd. introduces IOTA 556, a cosmetic-grade phenyl methyl silicone oil (INCI: Phenyl Trimethicone, CAS No. 73559-47-4). With comparable formulation compatibility and performance characteristics to commonly used phenyl silicone fluids on the market, IOTA 556 serves as a reliable alternative for cosmetic and personal care formulations.
Phenyl Trimethicone is a phenyl-modified polysiloxane fluid widely used in skincare, sun protection, color cosmetics, and hair care products. The phenyl groups in its molecular structure provide a higher refractive index, excellent spreadability, and compatibility with a broad range of organic ingredients.
In cosmetic formulations, Phenyl Trimethicone performs several key functions:
| Parameter | IOTA 556 Value |
|---|---|
| Appearance | Colorless, clear liquid |
| Viscosity (25°C) | 20.1 cSt |
| Specific Gravity (25°C/15.6°C) | 0.980 |
| Refractive Index (25°C) | 1.46 |
| CAS Number | 73559-47-4 |
| INCI Name | Phenyl Trimethicone |
Key technical features of IOTA 556 include:
| Comparison Parameter | IOTA 556 | Comparable Phenyl Trimethicone Products |
|---|---|---|
| INCI Name | Phenyl Trimethicone | Phenyl Trimethicone |
| CAS Number | 73559-47-4 | 73559-47-4 |
| Viscosity (25°C) | 20.1 cSt | Typically 18–22 cSt |
| Refractive Index (25°C) | 1.46 | Typically 1.45–1.47 |
| Specific Gravity | 0.980 | Typically 0.97–0.99 |
| Appearance | Colorless, clear liquid | Colorless to pale yellow liquid |
| Emulsification | Standard emulsifiers | Similar conditions required |
| Formulation Compatibility | Compatible with a wide range of ingredients | Compatible with a wide range of ingredients |
From a technical standpoint, IOTA 556 falls within the same performance range as comparable products in viscosity, refractive index, and specific gravity. This means it can be used as a drop-in replacement in existing formulations without requiring significant reformulation.
IOTA 556 functions as an emollient in creams, lotions, and serums, providing a lightweight, non-greasy feel while helping to distribute active ingredients evenly across the skin.
In sunscreens and SPF sprays, IOTA 556 serves as a water-repellent additive that reduces the tackiness of organic UV filters, improving overall application experience.
IOTA 556 can be used in foundations, primers, and lip products to deliver a silky application feel and a natural luminous finish.
In hairsprays, conditioners, and styling products, IOTA 556 acts as a gloss agent, adding shine and softness to hair.
In pre-shave lotions and shaving foams, IOTA 556 reduces formulation tackiness and delivers a smoother shaving experience.
IOTA 556 is readily emulsified using standard emulsifiers and conventional techniques, making it straightforward to incorporate into formulations.
Regarding solubility, IOTA 556 dissolves readily in 95% ethanol at room temperature. Even at temperatures as low as 4°C, up to 50% by weight of IOTA 556 can be dissolved in 95% ethanol — demonstrating strong alcohol solubility suitable for alcohol-based formulation systems.
Anhui IOTA Silicone Oil Co., Ltd. is a full-chain silicone solutions provider, offering a comprehensive range of products including dimethyl silicone oils, methyl phenyl silicone oils, specialty functional silicone oils, and related silicone additives. The company serves industries including cosmetics, personal care, industrial lubrication, and thermal management materials, providing both raw materials and technical support.
Yes. IOTA 556 shares the same INCI name (Phenyl Trimethicone) and CAS number (73559-47-4) as other branded products on the market, making them different branded versions of the same chemical substance. While they are comparable in core chemical structure and function, differences in purity, trace components, and batch consistency may exist between brands. Formulation validation is recommended before substitution.
In most cases, yes. Because IOTA 556 shares the same INCI name and CAS number, it can serve as a direct replacement in existing formulations. Small-batch trials are recommended to verify formulation stability and sensory performance before full-scale production.
IOTA 556 has a viscosity of 20.1 cSt at 25°C, which falls within the typical range of 18–22 cSt for comparable phenyl trimethicone products. This means it has minimal impact on formulation rheology.
IOTA 556 is suitable for skincare (creams, lotions, serums), sun protection products, color cosmetics (foundations, primers), hair care (hairsprays, conditioners), and shaving products.
When stored in sealed containers at or below 25°C, IOTA 556 has a shelf life of 30 months.
Yes. IOTA 556 dissolves readily in 95% ethanol at room temperature, and can dissolve up to 50% by weight in 95% ethanol even at 4°C, making it well-suited for alcohol-based formulation systems.
Contact Anhui IOTA Silicone Oil Co., Ltd. to request product samples, Technical Data Sheets (TDS), and formulation guidance.
Trademark Disclaimer: Any third-party brand names and trademarks mentioned in this article are used solely for comparative reference purposes, to help readers understand the technical comparability of the products discussed. All such trademarks are the property of their respective owners. Anhui IOTA Silicone Oil Co., Ltd. has no affiliation with, authorization from, or endorsement by any of the aforementioned third-party brands. The content of this article does not constitute an evaluation or disparagement of any third-party product and is based exclusively on publicly available technical specifications for objective comparison.
