In personal care fields such as skincare, makeup, and sun care, the four-dimensional performance of "emulsification efficiency — skin feel experience — operation energy consumption — formulation flexibility" of emulsifiers has always been the core contradiction restricting product quality and production costs. Traditional nonionic emulsifiers (such as fatty alcohol polyethers, glyceryl monoesters, etc.) often require high dosages to stabilize W/Si (water/silicone) or W/O (water/oil) emulsions, and the skin feel tends to be sticky and heavy, affecting the silky experience. Ordinary silicones (such as polydimethylsiloxane) provide a silky feel but lack emulsification capacity and cannot independently stabilize emulsions as primary emulsifiers. Traditional emulsification systems usually require heating and homogenization, with high energy consumption and complex processes, making it difficult to meet the trend of low-temperature energy-saving production. With the continuous upgrading of consumer demand for "silky, non-sticky, easy emulsification, low dosage" high-end skincare and makeup, sourcing a "low-dosage high-efficiency, W/Si and W/O compatible, cold-processable" silicone-based emulsifier has become the core gap for domestic cosmetic active ingredient autonomy. Addressing this, Anhui IOTA Silicone Oil Co., Ltd. officially launches IOTA 99336 PEG-10 Dimethicone. Characterized by "INCI PEG-10 Dimethicone; lipophilic polyether polydimethylsiloxane; appearance colorless to pale yellow transparent to translucent liquid; refractive index 1.4100~1.4300; relative density 1.00~1.05; viscosity 400~1600 cSt (25℃); high water content 'water-burst' effect at low emulsifier dosage; slight polyether characteristic odor; recommended dosage 1~4% as primary emulsifier, 0.1~1.5% as co-emulsifier", backed by "polyether-siloxane amphiphilic structure + low-dosage high efficiency + silky non-sticky skin feel", it serves as the "emulsifying滋润" for personal care, achieving the leap from "traditional emulsifier high-stickiness high-energy consumption" to "polyether silicone cold-process silky emulsification". System Positioning: Polyether Modified Silicone Emulsifier vs. Traditional Nonionic Emulsifiers/Ordinary Silicones IOTA 99336 belongs to the polyether modified silicone (siloxane-polyether copolymer) emulsifier system, distinct from traditional nonionic emulsifiers and ordinary silicones. Traditional nonionic emulsifiers have fixed HLB values, requiring large amounts of blending for W/Si or W/O systems, and carbon chain residues cause sticky skin feel. Ordinary silicones (polydimethylsiloxane) are only used as emollient oils, lacking emulsification capacity. Polyether modified silicone introduces hydrophilicity via PEG polyether segments while the siloxane backbone provides lipophilicity and silky skin feel, combining emulsification and skincare dual functions, thoroughly avoiding the application shortcomings of traditional raw materials: "high dosage, high stickiness, no emulsifying power". Molecular Architecture: Polyether-Siloxane Amphiphilic Bridging + High Water-Content Burst Effect + Silky Skin Feel Optimization The core competitiveness of IOTA 99336 stems from its precision amphiphilic molecular design:

• Polyether-Siloxane Amphiphilic Bridging: PEG-10 polyether segments provide hydrophilicity and emulsification active sites, while polydimethylsiloxane segments provide lipophilicity and the unique silky skin feel of silicone. The amphiphilic structure enables rapid orientation at the oil-water interface, greatly reducing interfacial tension. Stable W/Si and W/O emulsions can be formed at low dosages, with emulsification efficiency far exceeding traditional emulsifiers.
• High Water-Content Burst Effect: The unique molecular structure forms a stable multi-layer emulsification film when water phase is slowly added, achieving a "water-burst" effect with high water content at low emulsifier dosage, giving the end product a refreshing, water-exploding sensation.
• Silky Non-Sticky Skin Feel Optimization: The siloxane segments form a breathable hydrophobic film on the skin surface, reducing trans epidermal water loss; the polyether segments neutralize the occlusion of pure silicone, achieving a "silky non-sticky" luxurious skin feel, meeting the tactile demands of high-end skincare and makeup.

Performance Leap: From "High-Stickiness High-Energy" to "Silky Cold-Process Emulsification" Introducing IOTA 99336 brings a qualitative leap to personal care formulations:

• Excellent W/Si and W/O Emulsification: Lipophilic特性 enables stabilization of both water/silicone and water/oil systems, greatly broadening formulation design space, especially suitable for silicone-containing skincare and makeup.
• Easy Emulsification, Cold Process: When all raw materials are liquid, emulsification can be carried out at room temperature without homogenization; rapid stirring yields stable emulsions, significantly reducing production energy consumption and equipment requirements.
• Silky Non-Sticky Skin Feel: The synergy of polyether and siloxane gives the end product both silky spreadability and a refreshing feel that traditional emulsifiers cannot match, enhancing brand competitiveness.
• Low Dosage High Efficiency: Recommended dosage only 1~4% (total formula) as primary emulsifier, low dosage achieves high water content, reducing formulation costs.
• High Process Tolerance: Increasing stirring speed improves emulsion stability; increasing water phase ratio raises viscosity; adding 0.5~2% sodium chloride in the water phase improves storage stability, offering flexible formulation adjustment.

Application Penetration: From Skincare to Makeup and Sun Care The application boundary covers all personal care scenarios requiring "W/Si or W/O emulsification + silky skin feel":

• Skincare (Main Battlefield): Lotions, creams, essences and other W/O moisturizing products, utilizing the water-burst effect and silky skin feel to enhance user experience.
• Makeup: Foundations, BB creams, primers and other silicone-containing makeup products. W/Si emulsification ensures uniform powder dispersion, silky and non-caking.
• Sun Care: Water-resistant sunscreens (W/O type), utilizing excellent emulsification stability and silicone skin feel to balance high SPF and refreshing application.

IOTA Technical Guide: Water into Oil, Room-Temp Fast Stir

• Application: Slowly pour the water phase into the oil phase, stir rapidly and evenly; increasing stirring speed improves W/O emulsion stability; increasing water phase ratio raises viscosity; ensure oil phase and emulsifier are stirred evenly before adding water.
• ⚠️ Taboo: Avoid direct compatibility with strong acids/bases or protein-denaturing ingredients; store in a cool dry place, prevent moisture absorption from affecting emulsification.
• Storage: Store sealed in original packaging, avoid high temperature and direct sunlight; slight polyether characteristic odor is normal, does not affect product efficacy.
• Handling: If all raw materials are liquid, emulsification can be performed at room temperature without homogenization; rapid stirring yields stable emulsion; adding electrolyte (0.5~2% NaCl solution) to the water phase further improves storage stability.

Industry Insight: In high-end personal care raw materials, the molecular architecture of polyether modified silicone — "polyether-siloxane amphiphilic bridging + high water-content burst effect + silky skin feel optimization" — is the key path to achieving the trinity of "low-dosage emulsification, silky non-sticky, cold-process energy saving" — the introduction of polyether segments solves the industry pain point of pure silicone "no emulsifying power", while the siloxane backbone ends the application shortcoming of traditional nonionic emulsifiers: "high stickiness, heavy skin feel". IOTA 99336, with "PEG-10 Dimethicone + W/Si and W/O dual emulsification + silky non-sticky + 1~4% low dosage" hard metrics, fills the key supply chain link for domestic polyether modified silicone emulsifiers in skincare, makeup, and sun care, providing a mass-producible high-performance solution for downstream daily chemical enterprises. This confirms domestic cosmetic raw materials are leaping toward "traditional nonionic emulsifier → ordinary silicone blending → polyether modified silicone emulsifier", with growing technical say in high-end personal care fields.