In personal care fields such as skin care, color cosmetics, sunscreens, hair care, body washes, and antiperspirants, the four-dimensional indicators of "volatility — retention — wash resistance — skin feel comfort" of silicone ingredients have always been the core contradiction restricting end-product texture and consumer satisfaction. Traditional high-viscosity silicones, while retaining effect, are thick and poorly spreadable, difficult to form a uniform film quickly. Ordinary volatile silicones (e.g., D5), while providing dry spread, leave no residue after volatilization, unable to form a long-lasting protective film, not wash-resistant, failing to meet the long-lasting softness needs of hair care products. Alcohol is often used as a solvent in antiperspirants, which may cause a burning sensation and short fragrance release. With the continuous upgrading of comprehensive consumer demands for "softness, wash resistance, sustained fragrance release, no burning sensation", finding a silicone mixture with "high-viscosity dimethiconol blended in cyclopentasiloxane, non-volatile content 14-15%, viscosity 4500-8000 mm²/s, refractive index 1.396" has become the core proposition for the refinement of domestic personal care silicones.
Addressing this,
Anhui IOTA Silicone Oil Co., Ltd. officially launches
IOTA 1501 Cyclopentasiloxane and Dimethiconol. Characterized by "transparent viscous liquid; non-volatile content 14-15%; viscosity 4500-8000 mm²/s (25°C); refractive index 1.396 (25°C); compatibility: soluble in dimethicone (all viscosities), phenyl trimethicone", backed by "cyclopentasiloxane volatile carrier + high-viscosity silanol film-forming + no-burn sustained release", it serves as the "silanol care choice" for personal care,
achieving the leap from "traditional silicone not wash-resistant short retention" to "cyclopentasilanol mixture wash-resistant film-forming".
System Positioning: Cyclopentasiloxane/Dimethiconol Mixture vs. Traditional Pure Volatile Silicone / Pure Silicone
IOTA 1501 belongs to the mixture system of cyclopentasiloxane and dimethiconol, distinct from traditional pure volatile silicones and pure silicones. Traditional pure volatile silicones leave no residue after volatilization, unable to form a long-lasting protective film on skin or hair, not wash-resistant. Pure silicones, while film-forming, have poor spreadability and heavy feel. IOTA 1501 innovatively dissolves high-viscosity dimethiconol (non-volatile 14-15%) in cyclopentasiloxane — cyclopentasiloxane as a volatile carrier provides dry spreading, taking away heat during volatilization with no burning sensation; high-viscosity silanol as a non-volatile film-former leaves a long-lasting protective film on the skin surface, thoroughly solving the industry pain points of "volatile silicone no retention, pure silicone not dry".
Molecular Architecture: High-Viscosity Silanol + Cyclopentasiloxane Volatile Carrier + Excellent Compatibility
The core competitiveness of IOTA 1501 stems from the precision molecular design of the cyclopentasiloxane/silanol mixture:
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High-Viscosity Silanol (Non-volatile 14-15%): Dimethiconol forms a protective layer on the skin surface, making skin softer; provides long-lasting wash-resistant conditioning for hair care products; brings a soft and smooth skin feel in antiperspirants.
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Cyclopentasiloxane Volatile Carrier: As a volatile solvent, it provides excellent spreadability and dry feel, taking away heat during volatilization, eliminating the burning sensation in antiperspirants, while serving as a matrix for sustained fragrance release, prolonging aroma duration.
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Excellent Compatibility: Soluble in dimethicone (all viscosities) and phenyl trimethicone, facilitating compounding with various silicones and broadening formulation boundaries.
Performance Leap: From "No Retention Not Wash-Resistant" to "Wash-Resistant Film-Forming Sustained Fragrance"
Introducing IOTA 1501 brings a qualitative leap to personal care formulations:
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Skin Softening Protection: Forms a protective layer on the skin surface, making skin softer, providing a breathable and comfortable skin care experience.
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Hair Care Wash Resistance: Used in hair care products, provides long-lasting wash-resistant softness and smoothness, maintaining good condition even after washing.
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Antiperspirant Sustained Release No Burn: Used in antiperspirant products, cyclopentasiloxane volatilization causes no burning sensation, while sustained fragrance release brings a soft and smooth skin feel.
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Optical Matching: Refractive index 1.396 (25°C), close to the natural refractive index of skin/hair, providing a natural transparent look without whitening.
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Wide Viscosity Range: Viscosity 4500-8000 mm²/s, balancing fluidity and film strength, adaptable to various formulation processes.
Application Penetration: From Skin Care to Antiperspirant Deodorant
The application boundary of IOTA 1501 covers all personal care scenarios requiring "wash-resistant film-forming + sustained fragrance + soft skin feel":
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Skin Care Products (Main Battlefield): Forms a protective layer to soften skin, improves paste spreadability, provides a silky touch.
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Color Cosmetics: Utilizing the volatility of cyclopentasiloxane and film-forming of silanol, improves foundation's wear resistance and sweat resistance.
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Sunscreen Products: The wash-resistant property enhances the waterproof durability of the sunscreen film, improving the sweat resistance of SPF.
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Hair Care Products: Long-lasting wash resistance, making hair smooth and shiny, suitable for shampoos, conditioners, hair masks.
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Body Wash: Leaves a silanol film after washing, making skin soft and not tight.
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Antiperspirants and Deodorants: Sustained fragrance release, no burning sensation, brings soft and smooth skin feel, enhancing user experience.
IOTA Technical Guide: Low-Temp Original Container, Seal from Light
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Application: Can be directly added to the oil phase or emulsification stage; recommended for skin care, color cosmetics, sunscreens, hair care, body wash, antiperspirants, etc.
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⚠️ Taboo: Avoid high temperature (long-term storage >25°C); prolonged contact with strong acids/bases may affect stability.
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Storage: Store at 25°C or lower in the original unopened container; seal after each use to prevent contamination and volatilization.
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Handling: Transparent viscous liquid, viscosity 4500-8000 mm²/s convenient for metering; refractive index 1.396 for optical testing; non-volatile content 14-15% convenient for dosing calculation; soluble in dimethicone and phenyl trimethicone, flexible compounding.
Industry Insight: In personal care silicones, the molecular design of IOTA 1501 — "high-viscosity silanol + cyclopentasiloxane volatile carrier + no-burn sustained release" — is the key path to achieving the trinity of "wash resistance + film-forming softness + fragrance sustained release" —
the introduction of cyclopentasiloxane solves the industry pain point of traditional silicone: "slow spreading, burning sensation", while the film-forming of high-viscosity silanol ends the application shortcoming of pure volatile silicone: "no retention, not wash-resistant". IOTA 1501, with "INCI Cyclopentasiloxane and Dimethiconol + non-volatile content 14-15% + viscosity 4500-8000 mm²/s + refractive index 1.396" hard metrics,
fills the key supply chain link for domestic cyclopentasiloxane/silanol mixture in personal care (skin care/color cosmetics/sunscreen/hair care/antiperspirant), providing a mass-producible wash-resistant film-forming high-performance silicone mixture for downstream daily chemical enterprises. This confirms that domestic personal care silicones are leaping toward "pure volatile silicone → pure silicone → cyclopentasiloxane/silanol mixture system" in terms of wash resistance and skin feel comfort, with growing technical say in high-end personal care fields.
