In personal care fields such as hand and body lotions, color cosmetics, sunscreens, moisturizing creams and lotions, and body washes, the four-dimensional indicators of "spreadability — film-forming breathability — active compatibility — light skin feel" of silicone ingredients have always been the core contradiction restricting end-product texture and consumer satisfaction. Traditional low-viscosity polydimethylsiloxane, while providing basic lubrication, has short molecular chains and limited spreading power, making it difficult to form a uniform and continuous water-resistant film on the skin surface. Some high-viscosity silicones, while long-lasting, have insufficient affinity with other actives (e.g., UV filters, pigments, humectants) in formulations, prone to phase separation or uneven application. Many synthetic oils, though light, lack the unique breathability and silky spreading feel of silicones. With the continuous upgrading of comprehensive consumer demands for "non-greasy, water-resistant and breathable, easy spreading, good skin feel", finding a silicone solution with "high-viscosity dimethiconol blended in low-viscosity dimethicone, 100% silicone content, viscosity 4000 mm²/s, specific gravity 0.93, flash point 135°C, D4<2%" has become the core proposition for the refinement of domestic personal care silicones.
Addressing this,
Anhui IOTA Silicone Oil Co., Ltd. officially launches
IOTA 1403 Dimethicone (and) Dimethiconol. Characterized by "colorless transparent viscous liquid; silicone content 100%; dimethiconol 12-14%; viscosity 4000 mm²/s (25°C); flash point 135°C (closed cup); specific gravity 0.93 (25°C); D4 content <2%", backed by "high-viscosity silanol + low-viscosity silicone + all-silicone zero solvent", it serves as the "skin breath choice" for personal care,
achieving the leap from "traditional silicone poor spreading stuffy film" to "silanol solution high-viscosity spreading water-resistant breathable".
System Positioning: Dimethiconol/Dimethicone Solution vs. Traditional Pure Polydimethylsiloxane
IOTA 1403 belongs to the silanol-modified silicone solution system, distinct from traditional pure polydimethylsiloxane. Traditional dimethicone molecules are linearly symmetric, with low surface tension but strong cohesion, limited spreading coefficient, prone to retracting into droplets on the skin, difficult to form a continuous film. Pure silicone also has weak affinity with polar actives (e.g., UV filters, pigments). IOTA 1403 innovatively dissolves high-viscosity dimethiconol (content 12-14%) in low-viscosity dimethicone — the introduction of silanol groups breaks the complete methyl wrapping of molecular chains, increasing hydrogen bonding affinity with polar components, while high-viscosity silanol provides structural support and low-viscosity silicone adjusts rheology, thoroughly solving the industry pain points of "pure silicone poor spreading, weak active affinity".
Molecular Architecture: High-Viscosity Silanol + Low-Viscosity Silicone + 100% All-Silicone Zero Solvent
The core competitiveness of IOTA 1403 stems from the precision molecular design of the silanol silicone solution:
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High-Viscosity Silanol (Dimethiconol 12-14%): Silanol groups (-OH) give the molecule polar sites, greatly increasing affinity with other actives (UV filters, pigments, humectants), helping uniform dispersion and preventing precipitation or patchiness. Meanwhile, the high-viscosity characteristic of silanol forms a continuous, water-resistant and breathable protective film on the skin surface.
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Low-Viscosity Silicone Base: Low-viscosity dimethicone acts as a solvent carrier, adjusting the overall viscosity to 4000 mm²/s, ensuring both sufficient structural strength and good flowability, improving formula spreadability for a smooth one-stroke application.
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100% All-Silicone Zero Solvent: 100% silicone content, no additional solvent, D4 content <2%, safe and pure; specific gravity 0.93 light and not heavy, flash point 135°C (closed cup) ensuring production safety.
Performance Leap: From "Poor Spreading Stuffy Film" to "High-Viscosity Spreading Water-Resistant Breathable"
Introducing IOTA 1403 brings a qualitative leap to personal care formulations:
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Enhanced Active Affinity: Increases affinity with other actives, helping UV filters, pigments, and humectants disperse uniformly, preventing precipitation or patchiness.
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Improved Spreadability: Improves formula spreadability, spreading with one stroke, reducing pulling sensation, enhancing application efficiency and consumer experience.
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Water-Resistant Breathable Film: Forms a water-resistant and breathable film on the skin, waterproof and sweatproof while allowing normal skin breathing, non-comedogenic and non-clogging.
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Good Skin Feel: Gives the skin a good feel, non-greasy, non-sticky, silky and soft, suitable for daily long-term use.
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Safe Low D4: D4 content <2%, compliant with strict environmental regulations; 100% silicone, no irritating impurities.
Application Penetration: From Hand Care to Color Cosmetics and Sunscreen
The application boundary of IOTA 1403 covers all personal care scenarios requiring "spreading + film-forming + breathability + affinity":
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Hand and Body Lotions (Main Battlefield): Forms a water-resistant breathable film, long-lasting moisturizing without greasiness, improves paste spreadability, leaving hands and body skin smooth.
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Color Cosmetics: Increases pigment dispersion and affinity, improves foundation and lipstick adhesion and spreadability, preventing caking and fading.
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Sunscreens: Serves as an excellent dispersion medium for UV filters, improving uniform SPF coverage, while forming a water-resistant film to enhance waterproofness.
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Moisturizing Creams and Lotions: Improves formula spreadability, forms a breathable water-locking film, enhancing moisturizing durability.
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Body Washes: Gives a silky skin feel after washing, non-tightening, improving foam texture.
IOTA Technical Guide: Low-Temp Seal, Original Container
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Application: Can be directly added to the oil phase or emulsification stage; recommended for hand and body lotions, color cosmetics, sunscreens, moisturizing creams and lotions, and body washes.
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⚠️ Taboo: Flash point 135°C (closed cup), beware of high temperature; avoid prolonged contact with strong acids/bases; D4 content <2%, compliant with regulations.
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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: Colorless transparent viscous liquid, viscosity 4000 mm²/s convenient for pumping and metering; specific gravity 0.93 verifiable by densitometer; 100% silicone content, simple dosing calculation.
Industry Insight: In personal care silicones, the molecular design of IOTA 1403 — "high-viscosity silanol + low-viscosity silicone + 100% all-silicone" — is the key path to achieving the trinity of "spreading + film-forming breathability + active affinity" —
the introduction of silanol groups solves the industry pain point of traditional dimethicone: "poor spreading, weak active affinity", while the combination of high-viscosity silanol and low-viscosity silicone ends the application shortcoming of pure silicone: "discontinuous film-forming, poor breathability". IOTA 1403, with "INCI Dimethicone (and) Dimethiconol + viscosity 4000 mm²/s + silanol 12-14% + D4<2% + flash point 135°C" hard metrics,
fills the key supply chain link for domestic silanol-modified silicone in personal care (hand care/color cosmetics/sunscreen/moisturizing/body wash), providing a mass-producible high-spreading breathable high-performance silicone solution for downstream daily chemical enterprises. This confirms that domestic personal care silicones are leaping toward "pure dimethicone → silanol-modified silicone → high-viscosity silanol solution" in terms of spreadability and breathability, with growing technical say in high-end personal care fields.
