Advanced Silicone Chemistry • Personal Care Grade

Hydrogen-Terminated Silicone Oil For Cosmetics And Personal Care

High-purity reactive organosilicone intermediates engineered for next-generation sensory modifiers, silky skin-feel enhancers, specialized silicone elastomers, and durable cosmetic formulations.

Cosmetic Synthesis & Formulation Core

Featured Organosilicone Fluids for Personal Care Solutions

Discover Bayee Chemical's premium-grade specialty silicone polymers and reactive hydride/vinyl/hydroxy functional fluids designed for high-performance cosmetic compounding, elastomer crosslinking, and sensory conditioning.

Methyl Hydrogen Silicone Fluid (MH Fluid) View Specifications

Hydrogen-terminated silicone oil View Specifications

Vinyl Silicone Oil CAS Number: 70900-21-0 View Specifications

OH-Hydroxy, Terminated Silicone Fluid View Specifications

Molecular Engineering

Chemical Precision of Hydrogen-Terminated Polydimethylsiloxane (Si-H)

Hydrogen-terminated silicone oil, chemically recognized as bis-hydrogen-terminated polydimethylsiloxane (CAS No. 70900-21-9 / related hydride polymers), carries chemically active silicon-hydride (Si-H) bonds positioned exclusively at the terminal ends of the linear siloxane chain. Unlike lateral methyl hydrogen silicone fluids where active Si-H groups are distributed randomly along the backbone, terminal functionalization ensures exact linear chain extension and precise stoichiometric crosslinking reactions without unwanted steric clumping.

In modern personal care and cosmetic formulating chemistry, this molecular architecture is foundational. The terminal Si-H groups undergo rapid, clean addition reactions (hydrosilylation) with terminal alkene, allyl, or vinyl groups under platinum catalysis, delivering high-purity organomodified siloxanes such as alkyl-modified silicones, polyether silicone surfactants, and ultra-pliable silicone elastomer gels without creating hazardous by-products.

Key Chemical Advantages for Cosmetic Chemists:

Predictable stoichiometric reactivity enabling precise molecular weight control
Minimal cyclosiloxane residues (low D4/D5/D6), fully aligned with international regulatory purity thresholds
Exceptional hydrophobic film flexibility, superior spreading coefficient, and velvety non-greasy after-feel

Typical Structural & Physical Properties

Our personal care grade hydrogen-terminated silicone fluids are synthesized under tight quality controls to guarantee reproducible hydrogen content and narrow polydispersity indices.

Parameter	Cosmetic Standard Value
Appearance	Colorless, transparent, odorless liquid
Active Hydrogen Content (wt%)	0.01% – 0.50% (Customizable)
Kinematic Viscosity (25°C, cSt)	5 – 10,000 cSt
Refractive Index (nD25)	1.3900 – 1.4100
Specific Gravity (25°C)	0.960 – 0.990 g/cm³
Volatile Content (150°C, 2h)	≤ 1.0%

Market Dynamics & Industrial Trends

The Expanding Horizon of Silicones in Clean & Functional Cosmetics

Driven by consumer demand for breathable long-wear color cosmetics, ultra-light daily sunscreens, and non-comedogenic hydration barriers, specialty silicone fluids have evolved into high-tech functional active matrices.

Transition to High-Purity Polymer Networks

Global cosmetic regulatory authorities, notably EU REACH and the US FDA, enforce stringent thresholds on monomeric cyclosiloxanes (D4, D5, D6). Hydrogen-terminated silicone oils serve as the premier non-volatile starting building block to synthesize custom organomodified siloxanes and elastomer blends, bypassing the need for volatile cyclic carriers while preserving an ethereal, featherlight skin feel.

Hybrid Organic-Silicone Polymers

Personal care chemists are synthesizing custom silicone-polyether and alkyl-silicone hybrid co-polymers. By reacting hydrogen-terminated silicone oil with allyl-functionalized botanical polyols or long-chain fatty alkenes, formulators produce biomimetic sensory agents that bridge natural oil compatibility with the unparalleled slip and refractive shine of polydimethylsiloxanes.

Waterless & Anhydrous Formulations

With water conservation driving personal care trends, anhydrous facial balms, powdered color serums, and water-free sun sticks are surging. Terminally hydride-functionalized silicone derivatives deliver silky structural integrity, preventing syneresis and phase separation while guaranteeing immediate transfer resistance and non-tacky spreadability.

In-Depth Application Matrix

How Hydrogen-Terminated Silicone Oil Drives Personal Care Performance

From pigment dispersion in foundation creams to restructuring cuticles in premium hair serums, see how terminal hydride reactivity translates into end-product brilliance.

1. Premium Skincare & Anti-Aging Emulsions

In premium facial moisturizers, wrinkle-filling primers, and night repair serums, hydrogen-terminated silicone oil is utilized as the key precursor for synthesis of flexible silicone elastomers and soft-focus micro-matrices. These cross-linked structures fill micro-grooves and fine lines on the stratum corneum, creating an instantaneous blurring effect and uniform light scattering.

Furthermore, its semi-permeable film permits transepidermal oxygen and water vapor transfer while preventing heavy moisture evaporation, ensuring non-occlusive, non-acnegenic skin comfort for all-day skin barrier protection.

2. Color Cosmetics & Long-Wear Foundation

Color cosmetic formulation demands hydrophobic surface treatments for inorganic pigments (titanium dioxide, iron oxides) and pearlizers. Derivatives synthesized from hydrogen-terminated silicone fluids coat pigment particles with a flexible, hydrophobic monolayer.

This surface passivation reduces pigment agglomeration, accelerates dispersion in low-viscosity carriers, enhances color fidelity, and imparts exceptional sweat, sebum, and transfer resistance to liquid lipsticks, transfer-proof foundations, and cream blushes.

3. Hair Care, Thermal Protection & Leave-In Serums

When copolymerized into quaternary ammonium or amino-polyether silicone hybrid complexes, terminal hydride siloxanes form ionic and hydrophobic bonds with damaged keratin cuticles. This provides long-lasting hair alignment, significant dry and wet combing friction reduction, and comprehensive thermal protection against flat irons up to 230°C without sticky build-up.

Split ends are effectively sealed, gloss index is markedly amplified, and color-treated hair retains vibrancy across repeated wash cycles.

4. Water-Resistant Sun Care & Daily Photo-Protection

Sun protection formulas (SPF 30-50+) require even distribution of UV filters over uneven skin micro-topography. Hydrosilylation adducts based on hydrogen-terminated silicone oil deliver exceptional film-forming continuity, eliminating streaks and preventing crystalline UV filter migration into skin pores.

The resulting sunscreen film meets 80-minute water immersion testing criteria while remaining effortlessly washable with conventional mild foaming facial cleansers.

Formulation Engineering

Hydrosilylation Chemistry: Synthesizing Specialty Cosmetic Ingredients

The fundamental utility of hydrogen-terminated silicone oil in the cosmetic ingredient manufacturing sector rests on the platinum-catalyzed addition reaction (Speier's or Karstedt's catalyst) across carbon-carbon double bonds. This reaction pathway operates at moderate temperatures (70°C – 110°C) with quantitative yields and zero free radical initiation.

1. Silicone Polyether Surfactants (PEG/PPG Dimethicones): Terminal Si-H reacts with allyl alcohol polyethers to yield non-ionic W/Si and W/O emulsifiers providing stable water-in-oil creams with velvety, non-greasy textures.

2. Alkyl Dimethicones: Reacting with terminal alpha-olefins (e.g., 1-octadecene) forms alkyl-modified silicones, blending the occlusive moisture-locking attributes of organic waxes with the silky feel of dimethicones.

3. Silicone Elastomer Gels: Reacting terminal hydride silicone oils with divinyl-terminated silicone resins forms soft 3D swollen micro-gel networks, functioning as premier texturizing modifiers in luxury anti-shine gels and matte lip products.

Quality Specifications for Cosmetic Grade Hydride Fluids

At Hangzhou Bayee Chemical, our quality control protocols for cosmetics and personal care grade fluids adhere strictly to international cGMP and ISO 9001:2015 frameworks:

Ultra-Low Catalyst Residue: Platinum catalyst recovery and fine filtration ensure heavy metal contamination is kept well below 1 ppm.
Zero Acidic Residuals: Neutralized to pH 6.5 - 7.5 to eliminate skin sensitization and formulation drift in delicate skin barrier creams.
Trace Volatiles Stripping: Multi-stage thin-film molecular distillation removes low-boiling cyclic oligomers for odor-free elegance.

Request Cosmetic Grade COA

Enterprise Overview

Welcome to Bayee Chemical

Hangzhou Bayee Chemical Co., Ltd. started chemical products exporting from 2001, manufacturers based exporter focused in chemical products covering Silicone series, Phosphorus series including Silicone Monomers, Cyclosiloxane, Silicone Oils, Agro Chemicals, Fire Retardants & Auxiliaries etc. Company has direct Import & Export right, Dangerous Cargo Permission Certificate. Based on 20+ years exporting history and persistent improvements, we have now grown and developed into a well known & good reputation exporter with ISO 9001:2015, AAA Credit certified company, also granted by local government as Healthy Enterprise, and A level Tax Ranking.

✓ Business Licence No. / Social Credit Code: 91330108759549090L
✓ Dangerous Cargo Certificate No.: [2025] 06002608
✓ Import & Export Certificate No.: 02306457
✓ AAA Credit Rating No.: BRC24AAA10012R2S
✓ ISO:9001 Certificate: BRC2024Q10513R2S

25⁺

Years of R&D and Production Experience

Production & Supply Chain Integration

About Bayee • Company Profile

Based on strategic factories in Zhejiang, Jiangsu, Shandong, Anhui, Jiangxi, Hubei, Hunan, Hebei and Henan provinces etc, we export not only good quality products, competitive EXW costs, but also honesty, safety and international philosophies to customers. We work tightly with competitive production sites across whole China, who have special advantages, located in professional industrial areas, close to raw material bases, locally supplied with energy - gas or steam pipe connected with neighbour enterprises in same areas to reduce transportation costs. Our factories have advanced ideas in technique crafts for higher yield production, unit consumption reducing from raw materials, also re-used the by-products for own downstream production for other products. By the way, we always keep close observation about raw material changing trend, react actively with factories shoulder by shoulder from organizing raw material at good times to secure more competitive production costs and share spaces with customers helping win their market shares. At the same time, we have wide connection with Chinese powerful chemical institute organizations for testing and supervising quality control in production process.

About Bayee 1 - Modern Chemical Synthesis Park

About Bayee 2 - Automated Organosilicone Processing Plant

About Bayee 3 - High Purity Distillation Facilities

About Bayee 4 - Strict Laboratory QC & Batch Testing

Global Reach

Global Business & International Supply Chain

Up till now we’ve developed and supplied to many countries and areas all over the world, with main markets in European countries (Germany, Italy, UK, Spain, Ukraine, Russia, Poland, etc.), USA, South America, Mid East, South-east Asia, Australia, etc. Also seeking more strategic partners and customers under mutual benefits and work through the whole purchasing chain.

🌍 Germany & Western Europe 🌍 Italy & Southern Europe 🌍 United Kingdom 🌍 Spain & Portugal 🌍 Poland & Eastern Europe 🌍 United States & Canada 🌍 South America (Brazil, Argentina, Colombia) 🌍 Middle East (UAE, Saudi Arabia, Turkey) 🌍 Southeast Asia (Vietnam, Thailand, Indonesia) 🌍 Australia & New Zealand

Complete Portfolio

Featured Organosilicone & Functional Fluid Products

Explore our comprehensive series of reactive silicone oils, crosslinkers, modified cosmetic additives, and specialty silicone intermediate fluids available for global shipping.

Hydrogen-terminated silicone oil for personal care

Hydrogen-terminated silicone oil Product Details →

Methyl Hydrogen Silicone Fluid (MH Fluid) Product Details →

Vinyl Silicone Oil CAS Number: 70900-21-0 Product Details →

OH-Hydroxy, Terminated Silicone Fluid Product Details →

BY-209 Amino-modified silicone fluid Product Details →

Hydrogen-terminated silicone oil (Cosmetics Grade) Product Details →

Vinyl Silicone Oil for Elastomer Networks Product Details →

BY-209 Amino-modified Fluid (Hair Care Spec) Product Details →

Cooperation & Direct Factory Supply

Partner with Bayee Chemical for Silicone Formulations

Whether you are engineering next-generation silky cosmetic elastomer matrices, hydrophobic pigment treatments, hair conditioning polymers, or high-performance personal care emulsions, Bayee provides stable global supply chains, strict batch-to-batch consistency, ISO 9001:2015 traceability, and competitive EXW/FOB/CIF pricing terms.

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