1. Product Advantages

Our dedicated tooth-grade hydrated silica (SiO₂·nH₂O) fully complies with GB/T 32673-2016, FDA and FCC international standards, serving as a mainstream abrasive material for the global high-end toothpaste market. Featuring a porous spherical microstructure and unique hydrated molecular structure, the product delivers precisely adjustable abrasion performance with a full RDA value range of 30-150, covering all application scenarios from ultra-gentle daily cleaning to professional teeth whitening. With a low Mohs hardness, it poses minimal risk of enamel damage.

This hydrated silica boasts excellent compatibility with core toothpaste active ingredients including fluorides and nano-hydroxyapatite (nHAp). As a core raw material for transparent gel toothpaste, it enables a highly clear and translucent paste appearance while maintaining outstanding cleaning and polishing capabilities. It ensures stable paste performance across all temperature ranges with no delamination or water precipitation issues.

2. Product Specifications

3. Application Scenarios

Specially developed for high-end oral care products, our hydrated silica is widely applicable to transparent gel toothpaste, professional whitening toothpaste, ultra-gentle children’s toothpaste, anti-sensitive toothpaste, and fluoride-free nHAp toothpaste.

In transparent toothpaste, it forms a high-transmittance gel system to deliver a crystal-clear paste appearance. In whitening toothpaste, its porous structure effectively adsorbs exogenous pigments such as tea and coffee stains, achieving mild and efficient whitening with adjustable abrasion values. For children’s toothpaste, customized ultra-mild specifications with RDA values below 80 fully meet the gentle care requirements of children’s delicate oral cavities. For fluoride-free nHAp toothpaste, it synergizes with nano-hydroxyapatite to enhance enamel remineralization, making it the preferred abrasive for high-end fluoride-free oral care products.

4. Factory Strength

Zhongqi Guangdong Silicon Materials Co., Ltd. is a national high-tech enterprise and provincial specialized, refined and innovative enterprise. With over 20 years of professional experience in oral care raw material production, we own independent proprietary production technology and a complete R&D system for tooth-grade hydrated silica, ranking among the leading domestic suppliers in the industry.

Equipped with high-precision testing instruments including laser particle size analyzers, RDA value detectors and specific surface area analyzers, we realize precise control over product particle size, sphericity and abrasion performance. A strict 26-item full inspection process covering raw materials to finished products ensures stable hydration degree and consistent quality of every batch. Our 10,000-ton-level automated production line guarantees sufficient and stable supply capacity. Our products have been incorporated into the supply chains of many world-famous toothpaste brands and exported to high-end oral care markets across Europe, America, Japan and South Korea.

5. Packaging & Shipping

Standard Packaging: 10/15/20kg valve paper bags, with food-contact grade customizable packaging available

Moisture-Proof Design: Composite film valve packaging bags with outer PE protective layer to isolate moisture and maintain the spherical structure and fluidity of powder

Storage & Transportation: Store in cool and dry environments with a 24-month shelf life. Non-dangerous goods, supporting global sea and air transportation

Standard Labeling: Each package is marked with official information including oral care raw material attributes, executive standards and production license numbers. Custom shipping marks are available upon customer requests

6. FAQ

Q1: What is the core difference between hydrated silica and ordinary anhydrous silica?

A1: Hydrated silica contains bound water in its molecular structure and presents a porous spherical morphology. It features milder and precisely adjustable abrasion performance with lower enamel damage risk, and superior compatibility with various toothpaste active ingredients. It is the only abrasive raw material that enables transparent gel toothpaste formulation and is the mainstream choice for global high-end toothpaste markets.

Q2: Can hydrated silica be used for fluoride-free toothpaste?

A2: Absolutely yes. Our product is highly compatible with core ingredients of fluoride-free toothpaste such as nano-hydroxyapatite (nHAp) and calcium phosphate. It synergistically boosts enamel remineralization, serving as an ideal abrasive for high-end fluoride-free toothpaste.

Q3: What is the shelf life of hydrated silica?

A3: The shelf life is 24 months when stored in a cool and dry environment. Sealed storage is recommended after opening to avoid moisture absorption and performance degradation.

7. Qualifications & Honors

• FSSC22000 Food Safety System Certification
• ISO22000:2018 Food Safety Management System Certification
• ISO9001:2015 Quality Management System Certification
• SHC HALAL Certification
• OU KOSHER Certification
• FDA Registration & Compliance
• Oral Care Raw Material Production License
• National High-Tech Enterprise
• Guangzhou Specialized, Refined and Innovative Enterprise
• 17 Patents Authorized by the National Intellectual Property Administration