In personal care fields such as shampoos, conditioners, hair masks, and perming agents, the four-dimensional indicators of "adsorption fixation — soft smoothness — perm/dye protection — easy emulsification" of silicone ingredients have always been the core contradiction restricting end-product hair care experience and consumer satisfaction. Traditional polydimethylsiloxane, while providing some emollience, lacks active groups, resulting in poor adsorption and easy wash-off, failing to achieve long-lasting softness. Ordinary cationic polymers, while adsorptive, lack the unique velvety smooth feel of silicones. During perming and dyeing, chemicals like thioglycolic acid and its salts, and oxidizers, cause physicochemical damage to hair, while traditional silicones cannot replace ammonia or other amines for buffering protection. With the continuous upgrading of comprehensive consumer demands for "long-lasting softness, easy combing, perm/dye repair", finding an aminopropyl dimethicone with "amino modification, specific gravity 0.960-0.990 g/cm³, viscosity 2500-6000 cSt" has become the core proposition for the refinement of domestic hair care silicones. Addressing this, Anhui IOTA Silicone Oil Co., Ltd. officially launches IOTA 9930 Aminopropyl Dimethicone (INCI Name: Aminopropyl Dimethicone). Characterized by "colorless to pale yellow transparent to semi-transparent liquid; specific gravity 0.960-0.990 g/cm³ (25°C); viscosity 2500-6000 cSt (25°C); refractive index 1.4000-1.4150 (25°C); reactive amino-modified polysiloxane; recommended usage 0.1-0.2%", backed by "amino active group cross-linking + polydimethylsiloxane backbone + easy emulsification and adsorption", it serves as the "velvet choice" for hair care, achieving the leap from "traditional silicone easy wash-off short retention" to "amino cross-linked elastic film long-lasting velvet soft". System Positioning: Aminopropyl Dimethicone vs. Traditional Dimethicone / Cationic Polymers IOTA 9930 belongs to the amino-modified polysiloxane system, distinct from traditional dimethicone and ordinary cationic polymers. Traditional dimethicone is an inert linear molecule without chemical bonding ability, easily washed away. Ordinary cationic polymers adsorb via electrostatics but lack siloxane flexible segments, failing to impart a velvety feel. Aminopropyl dimethicone innovatively introduces reactive amino groups at the molecular chain ends — the amino groups have high reactivity and can cross-link and condense to form an elastic film on the hair surface, thoroughly solving the industry pain point of "poor adsorption and short retention" of traditional silicones. Molecular Architecture: Amino Active Group Cross-Linking + Polydimethylsiloxane Backbone + Easy Emulsification The core competitiveness of IOTA 9930 stems from the precision molecular design of aminopropyl dimethicone:

• Amino Active Group Cross-Linking: The amino groups in the molecule are reactive groups that can cross-link and condense. They have high reactivity, cross-linking with hair keratin or themselves to form a soft, smooth elastic film on the hair strand, providing long-lasting softness and a velvety smooth feel.
• Polydimethylsiloxane Backbone: Retains the extremely low surface tension and excellent spreadability of organosiloxane, giving hair a smooth touch, easy combing, and good adsorption and compatibility.
• Easy Emulsification: The introduction of amino groups improves molecular polarity, making the product easy to emulsify in formulations, convenient for downstream customers to compound into various conditioners and shampoos, lowering production process barriers.

Performance Leap: From "Easy Wash-Off Short Retention" to "Long-Lasting Velvet Smooth Combing" Introducing IOTA 9930 brings a qualitative leap to hair care formulations:

• Excellent Adsorption and Combing: Reactive amino groups enhance adsorption and fixation to hair, remaining after washing, giving hair good combability, greatly reducing wet and dry combing resistance.
• Long-Lasting Soft Velvet Smooth: The cross-linked elastic film brings a persistent soft touch and velvety smooth feel, avoiding the shortcoming of traditional silicones "gone after washing".
• Perm/Dye Damage Protection: In perming and dyeing agents, it can partially replace ammonia or other amine compounds, buffering the physicochemical damage of thioglycolic acid and its salts and oxidizers to hair quality.
• Good Conditioning: As an efficient conditioner in hair care products, it improves hair roughness and restores healthy luster.
• Easy Emulsification: Can be directly added to the oil phase via conventional emulsification processes, with strong process compatibility.

Application Penetration: From Shampoos to Perm/Dye and Hair Masks The application boundary of IOTA 9930 covers all hair care scenarios requiring "soft smoothness + adsorption fixation + perm/dye protection":

• Conditioners and Hair Masks (Main Battlefield): As a core conditioner, added to the oil phase below 50°C to form a stable emulsified system, providing deep softening and repair.
• Shampoos: Added at 0.1-0.2%, giving an instant smooth feel after washing and long-lasting softness, improving dry hair combability.
• Perming and Dyeing Agents: Partially replaces ammonia to reduce chemical damage to hair while providing a soft feel after perming/dyeing.
• Leave-in Hair Essences: Utilizes its excellent adsorption to form a long-lasting protective film on hair strands, resisting heat damage and environmental pollution.

IOTA Technical Guide: Low-Temp Emulsification, Seal from Moisture

• Application: Recommended usage 0.1-0.2%; in hair care products, heat and dissolve the oil phase, then slowly add this product below 50°C and stir evenly; in perming/dyeing agents, partially replace ammonia or other amine compounds.
• ⚠️ Taboo: This product is non-hazardous but requires sealed storage; long-term contact with humid environment reduces transparency (still usable); long-term exposure to air causes yellowing and increased viscosity; during storage and transportation, prevent moisture, acids, alkalis and other impurities from mixing in.
• Storage: Sealed at room temperature in a dry place, avoid direct sunlight and high temperature; shelf life is one year under sealed and room temperature conditions.
• Handling: Colorless to pale yellow transparent to semi-transparent liquid, viscosity 2500-6000 cSt (25°C) convenient for metering; refractive index 1.4000-1.4150 for optical testing; specific gravity 0.960-0.990 g/cm³ for density verification; packaging: 50 kg plastic drum or 200 kg iron drum.

Industry Insight: In hair care silicones, the molecular design of aminopropyl dimethicone — "amino active group cross-linking + polydimethylsiloxane backbone + easy emulsification" — is the key path to achieving the trinity of "long-lasting softness + velvety smoothness + perm/dye protection" — the introduction of amino groups solves the industry pain point of traditional dimethicone: "inactive, easy wash-off", while the cross-linked elastic film property ends the application shortcoming of ordinary hair care ingredients: "short retention, poor feel". IOTA 9930, with "INCI Aminopropyl Dimethicone + viscosity 2500-6000 cSt + specific gravity 0.960-0.990 + refractive index 1.4000-1.4150 + reactive amino modification" hard metrics, fills the key supply chain link for domestic amino-modified silicone in hair care (shampoo/conditioner/hair mask/perm dye), providing a mass-producible velvet-soft high-performance hair care silicone oil for downstream daily chemical enterprises. This confirms that domestic hair care silicones are leaping toward "traditional silicone → cationic polymer → amino-modified silicone" in terms of adsorption and smoothness, with growing technical say in high-end hair care fields.