Calcium Hydroxyapatite Powder Manufacturer | High Purity & OEM 

Calcium hydroxyapatite powder is a high-purity, bioactive ceramic material chemically identical to the mineral component of human bone and teeth. As a premier provider of advanced biomaterials, we specialize in sourcing and distributing stoichiometric calcium hydroxyapatite (Ca10(PO4)6(OH)2) with precise Ca/P molar ratios for biomedical, dental, and industrial applications. Our rigorous selection processes ensure that every batch offers consistent particle size distribution, high crystallinity, and exceptional biocompatibility. Whether you require nano-sized particles for bone tissue engineering or micro-sized powders for cosmetic formulations, our solutions deliver the rigorous quality standards demanded by global regulatory bodies. This guide details the technical specifications, manufacturing precision, and application-specific advantages of our calcium hydroxyapatite offerings.

What Is Calcium Hydroxyapatite Powder?

Calcium hydroxyapatite, often abbreviated as HAp or HA, is a naturally occurring mineral form of calcium apatite. It is the primary inorganic constituent of bone and tooth enamel, comprising approximately 70% of bone weight and 90% of enamel. In its synthetic powder form, it serves as a critical raw material across multiple high-value industries due to its unique biological and chemical properties.

Unlike other calcium phosphates, hydroxyapatite exhibits superior stability in physiological environments. Its crystal structure allows for ion substitution, meaning elements like strontium, magnesium, or fluoride can replace calcium or hydroxyl groups. This feature enables manufacturers to tailor the powder’s properties for specific therapeutic or functional outcomes, such as enhanced osteoconductivity or improved acid resistance in dental care.

Chemical Composition and Structure

The ideal chemical formula for stoichiometric hydroxyapatite is Ca10(PO4)6(OH)2. The calcium-to-phosphorus (Ca/P) molar ratio is a critical quality parameter. A ratio of 1.67 indicates pure, stoichiometric hydroxyapatite. Deviations from this ratio can result in the presence of other calcium phosphate phases, such as tricalcium phosphate (TCP) or tetracalcium phosphate, which dissolve at different rates in the body.

Our supply chain strictly controls this ratio to ensure phase purity. The crystal structure is hexagonal, providing a robust framework that supports cell attachment and proliferation in biomedical applications. This structural integrity is vital for load-bearing bone implants and long-term dental restorations.

Key Properties of High-Purity Calcium Hydroxyapatite

The value of calcium hydroxyapatite powder lies in its multifaceted properties. Understanding these characteristics is essential for selecting the right grade for your application. We focus on optimizing four core attributes: biocompatibility, bioactivity, osteoconductivity, and chemical stability.

• Biocompatibility: Since HAp is chemically similar to human hard tissue, it elicits minimal immune response. It is non-toxic, non-inflammatory, and non-carcinogenic, making it safe for internal medical use.
• Bioactivity: HAp actively bonds with living bone tissue. When implanted, it encourages direct chemical bonding with the host bone, eliminating the need for mechanical fixation in many cases.
• Osteoconductivity: The powder serves as a scaffold or template upon which new bone can grow. Osteoblasts (bone-forming cells) adhere to the surface, proliferate, and deposit new bone matrix.
• Ion Exchange Capacity: The surface of HAp particles can adsorb and release ions. This property is exploited in drug delivery systems and water purification filters.

Particle Size and Morphology Control

Particle size significantly influences the performance of calcium hydroxyapatite powder. We offer a range of particle sizes, from nanometers to microns, each serving distinct purposes.

Nano-hydroxyapatite (nHAp), typically ranging from 10 to 100 nanometers, mimics the natural collagen-mineral structure of bone. Its high surface-area-to-volume ratio enhances reactivity and protein adsorption, making it ideal for tissue engineering scaffolds and advanced dental remineralization agents. Micro-hydroxyapatite, with particle sizes between 1 and 100 microns, is commonly used in cosmetic formulations, polymer composites, and chromatography media where flow dynamics and packing density are crucial.

Our curated portfolio allows for precise control over particle morphology, including spherical, rod-like, or platelet shapes. This customization ensures optimal dispersion in solvents and polymers, preventing agglomeration and ensuring uniform product performance.

Manufacturing Process: Ensuring Consistency and Purity

Producing high-quality calcium hydroxyapatite powder requires rigorous control over chemical reactions and thermal treatments. While Jinan Meiyi Biotechnology Co., Ltd. does not engage in direct manufacturing, we partner exclusively with certified manufacturers that adhere to internationally accepted quality management systems. Our partners employ two primary synthesis methods: wet chemical precipitation and hydrothermal synthesis. Each method is selected based on the desired crystallinity and particle characteristics.

Wet Chemical Precipitation Method

This is the most common industrial method for producing HAp powder due to its scalability and cost-effectiveness. The process involves reacting a calcium source, such as calcium nitrate or calcium chloride, with a phosphate source, such as diammonium hydrogen phosphate.

The reaction occurs in an aqueous solution under controlled pH and temperature conditions. Ammonia solution is typically added to maintain a pH above 10, preventing the formation of acidic calcium phosphates. The resulting precipitate is washed repeatedly to remove by-products like ammonium nitrate, then dried and calcined at high temperatures to improve crystallinity.

Key Control Points:

• pH Stability: Fluctuations in pH can lead to mixed phases. Our manufacturing partners use automated dosing systems to maintain precise pH levels throughout the reaction.
• Temperature: Reaction temperature affects particle size and crystallinity. Higher temperatures generally yield larger, more crystalline particles.
• Aging Time: Allowing the precipitate to age in the mother liquor improves crystal growth and phase purity.

Hydrothermal Synthesis Method

For applications requiring high crystallinity and specific morphologies, such as nano-rods or single-crystal structures, our partners utilize hydrothermal synthesis. This method involves heating the precursor solution in a sealed vessel (autoclave) at elevated temperatures and pressures.

The high-pressure environment facilitates the dissolution and recrystallization of HAp, resulting in well-defined crystal structures with fewer defects. Hydrothermally synthesized HAp exhibits superior thermal stability and mechanical strength, making it suitable for high-performance biomedical implants and specialized ceramic components.

Quality Assurance and Testing Protocols

Every batch of calcium hydroxyapatite powder distributed by Jinan Meiyi Biotechnology undergoes stringent quality control checks. Leveraging our role as a strategic sourcing partner, we ensure that all materials are accompanied by full technical dossiers. We utilize advanced analytical techniques to verify composition, structure, and purity before products reach our clients.

Applications of Calcium Hydroxyapatite Powder

The versatility of calcium hydroxyapatite allows it to serve diverse industries. From regenerative medicine to personal care, our powder is engineered to meet specific functional requirements.

1. Biomedical and Orthopedic Implants

In orthopedics, HAp powder is used to coat metallic implants (such as titanium hips and knees) or to fabricate porous scaffolds for bone grafts. The coating promotes osseointegration, ensuring the implant bonds securely with the patient’s bone. Porous scaffolds made from HAp provide a temporary structure that supports bone ingrowth while gradually resorbing or remaining stable, depending on the crystallinity.

Why choose our HAp for implants? Our high-purity powder ensures predictable resorption rates and mechanical integrity. We can customize porosity and pore size to match the regeneration rate of specific bone types, such as cortical or cancellous bone.

2. Dental Care and Remineralization

Hydroxyapatite is a gold-standard ingredient in modern dentistry. It is used in toothpaste, mouthwashes, and professional desensitizing agents. Nano-hydroxyapatite particles can penetrate micro-pores in enamel and dentin tubules, effectively repairing early-stage cavities and reducing sensitivity.

Unlike fluoride, which forms a fluorapatite layer, HAp directly replenishes the lost mineral content of the tooth. This biomimetic approach is increasingly preferred by consumers seeking natural and non-toxic oral care solutions. Our dental-grade HAp is processed to ensure high abrasion compatibility and optimal particle adhesion to enamel surfaces.

3. Cosmetics and Personal Care

In the cosmetics industry, calcium hydroxyapatite is valued for its skin-brightening and anti-aging properties. It acts as a gentle exfoliant, a moisture regulator, and a carrier for active ingredients. In skincare formulations, HAp nanoparticles can enhance the penetration of vitamins and antioxidants into the deeper layers of the skin.

Additionally, HAp is used in hair care products to repair damaged cuticles. The particles fill in gaps in the hair shaft, restoring shine and strength. Our cosmetic-grade powder is micronized to ensure a smooth texture and seamless integration into creams, lotions, and serums.

4. Chromatography and Protein Purification

Crystalline calcium hydroxyapatite is an effective medium for column chromatography, particularly for the separation of proteins, nucleic acids, and viruses. Its unique surface chemistry allows for the separation of molecules based on differences in their surface charge and hydrophobicity.

HAp chromatography is especially useful for separating isoforms of proteins and removing aggregates. It offers high resolution and capacity, making it a valuable tool in biopharmaceutical manufacturing. We provide specialized chromatography-grade HAp with uniform particle size and high mechanical strength to withstand high-pressure flow systems.

5. Water Filtration and Environmental Remediation

Due to its high affinity for heavy metals and anions, HAp powder is used in water filtration systems. It effectively adsorbs lead, cadmium, arsenic, and fluoride from contaminated water sources. The ion-exchange mechanism replaces calcium ions in the HAp lattice with toxic metal ions, immobilizing them and purifying the water.

This application is gaining traction in industrial wastewater treatment and municipal water purification. Our industrial-grade HAp is optimized for high adsorption capacity and ease of regeneration or disposal.

Comparison: Hydroxyapatite vs. Other Calcium Phosphates

Selecting the right calcium phosphate depends on the required degradation rate and mechanical strength. Below is a comparison of hydroxyapatite with other common bioceramics.

While β-TCP resorbs quickly, allowing new bone to replace it rapidly, HAp provides long-term structural support. BCP combines both materials to balance resorption and stability. Our expertise allows us to source pure HAp or customized blends to meet your specific clinical or industrial needs.

How to Choose the Right Calcium Hydroxyapatite Powder

Choosing the correct grade of calcium hydroxyapatite is critical for product performance. Consider the following factors when specifying your requirements.

1. Determine the Application Domain

Regulatory requirements vary significantly between industries. Biomedical applications require ISO 13485 certified manufacturing and strict endotoxin control. Cosmetic applications must comply with local cosmetic regulations (e.g., EU Cosmetics Regulation, FDA guidelines). Industrial applications may prioritize cost and volume over extreme purity. Clearly define your end-use to ensure compliance.

2. Specify Particle Size and Distribution

Particle size affects handling, dispersion, and biological interaction. For injectables or topical dental applications, nano-sized particles are preferred for their smoothness and reactivity. For polymer composites or chromatography, micron-sized particles with narrow distribution curves ensure consistent flow and mechanical properties. Request detailed particle size analysis (PSA) data from your supplier.

3. Assess Crystallinity Requirements

Highly crystalline HAp is more stable and resists dissolution, making it suitable for long-term implants. Low-crystalline or amorphous HAp dissolves faster, which may be desirable for drug delivery carriers or rapid bone regeneration scaffolds. Our XRD reports provide clear insights into the crystallinity index of each batch.

4. Evaluate Supplier Capabilities and EEAT

Partnering with a provider who demonstrates Experience, Expertise, Authoritativeness, and Trustworthiness is vital. Look for partners like Jinan Meiyi Biotechnology who offer:

• Experience: Proven track record in supplying the cosmetics, medical aesthetics, and biomedical industries.
• Expertise: A scientifically trained team capable of guiding synthesis parameter selection and formulation development.
• Authoritativeness: Compliance with international standards through rigorous supplier qualification and documentation traceability.
• Trustworthiness: Transparent quality documentation, batch-level verification, and a reliable global supply chain.

Common Challenges and Solutions in HAp Processing

Working with calcium hydroxyapatite powder can present certain challenges. Here are common issues and our recommended solutions.

Agglomeration of Nanoparticles

Nano-hydroxyapatite tends to agglomerate due to high surface energy. This can reduce its effectiveness in composites and coatings. Solution: Use surface modifiers or dispersants during mixing. Our surface-treated HAp options offer improved dispersion in organic solvents and polymers, reducing the need for extensive sonication or high-shear mixing.

Inconsistent Sintering Results

When fabricating ceramics from HAp powder, inconsistent sintering can lead to weak mechanical properties. Solution: Ensure uniform particle size distribution and high purity. Impurities can act as fluxes, altering sintering temperatures. Our high-purity powder ensures predictable shrinkage and density profiles during sintering.

Protein Adsorption Variability

In chromatography and biomedical applications, inconsistent protein adsorption can affect separation efficiency or cell response. Solution: Control surface charge and roughness. Our manufacturing partners ensure consistent surface chemistry, batch after batch, enabling reproducible biological interactions.

Frequently Asked Questions (FAQ)

Is calcium hydroxyapatite powder safe for human use?

Yes, synthetic calcium hydroxyapatite is biocompatible and bioinert. It is widely used in medical implants, dental products, and cosmetics. However, for internal medical use, it must be manufactured under strict GMP conditions to ensure sterility and absence of pyrogens. Our biomedical-grade powder meets ISO 10993 standards for biocompatibility.

What is the difference between natural and synthetic hydroxyapatite?

Natural HAp is derived from biological sources like bovine bone or marine coral. Synthetic HAp is chemically precipitated. Synthetic HAp is preferred in high-tech applications because it offers higher purity, consistent particle size, and no risk of disease transmission or immunogenic reactions associated with animal-derived materials.

Can calcium hydroxyapatite powder be sterilized?

Yes, HAp powder can be sterilized using gamma irradiation or ethylene oxide gas. Autoclaving (steam sterilization) is also possible but may affect the crystallinity or cause agglomeration if not properly controlled. We provide sterile packaging options for sensitive biomedical applications.

How should calcium hydroxyapatite powder be stored?

Store in a cool, dry place in airtight containers. HAp is hygroscopic and can absorb moisture from the air, which may lead to clumping. Avoid exposure to acidic environments, as HAp dissolves in low pH conditions. Proper storage ensures long-term stability and flowability.

Do you offer custom OEM services for calcium hydroxyapatite?

Yes, through our strategic partnerships, we specialize in OEM solutions. We can customize particle size, crystallinity, surface modification, and packaging to meet your specific formulation requirements. Our technical team works closely with clients to develop tailored grades for novel applications.

About Jinan Meiyi Biotechnology: Your Trusted Partner in Bioactive Materials

Headquartered in Jinan, Shandong Province, China, and operating as a subsidiary of Pacific Kangtai Scientific Instruments (Jinan) Co., Ltd., Jinan Meiyi Biotechnology Co., Ltd. is a professional enterprise dedicated to the research, development support, and commercialization of bioactive technologies. We position ourselves at the intersection of scientific rigor and market responsiveness, serving as a trusted enabler for innovation across the global personal care, medical aesthetics, and biomedical value chains.

Unlike traditional manufacturers, Jinan Meiyi Biotechnology functions as a strategic sourcing and quality-assured distribution partner. We do not engage in direct manufacturing; instead, we leverage a well-established global supply chain network to maintain long-term cooperative relationships with internationally recognized, certified manufacturers. This model allows us to ensure consistent access to technically advanced, regulatory-compliant, and scientifically validated materials without the overhead of maintaining production facilities.

Our core business is structured around two complementary pillars:

• Supply of Cosmetic and Bioactive Raw Materials: We focus exclusively on active ingredients and functional components used in formulation development. All raw materials undergo comprehensive evaluation prior to inclusion in our portfolio, with selection criteria grounded in efficacy data, stability profiles, and compatibility with modern formulation standards.
• Distribution of Premium Finished Products: We curate a targeted range of finished products—including skincare formulations and medical-grade aesthetic devices—based on rigorous assessment of clinical relevance and technological differentiation.

Our quality assurance framework centers on supplier qualification, documentation traceability, batch-level specification verification, and compliance oversight throughout the procurement and logistics process. Each raw material is accompanied by full technical dossiers, including certificates of analysis, safety data sheets, and regulatory status summaries. We maintain strict control over storage conditions, shipping protocols, and delivery timelines to ensure product integrity from origin to end-user.

We serve clients across Asia, Europe, and North America, with particular strength in supporting R&D laboratories, contract development and manufacturing organizations (CDMOs), and aesthetic clinics. Our service philosophy is rooted in partnership rather than transaction: technical consultation, regulatory intelligence sharing, and collaborative problem-solving are integral to client engagement.

Why Partner With Jinan Meiyi Biotechnology?

In a market flooded with varying qualities, our commitment to precision, transparency, and scientific integrity sets us apart. We are not just a supplier; we are a technical partner dedicated to your product’s success.

• Deep Specialization: Our team possesses deep expertise in bioactive technology applications within cosmetics and medical aesthetics, supported by continuous exposure to international research frontiers.
• Global Supply Chain Integrity: Our globally integrated and vetted supply chain enables reliable access to high-integrity, functionally validated ingredients backed by robust documentation.
• Disciplined Curation: We prioritize clinically meaningful innovation, regulatory clarity, and precise market fit over breadth or volume.
• Partnership-Oriented Service: We emphasize technical collaboration, regulatory awareness, and agile responsiveness to the dynamic needs of R&D-driven and clinic-based customers.

Conclusion and Next Steps

Calcium hydroxyapatite powder is a cornerstone material in modern biomedical, dental, and industrial technologies. Its unique combination of biocompatibility, bioactivity, and chemical stability makes it indispensable for applications ranging from bone regeneration to water purification. Selecting the right partner is crucial to leveraging these properties effectively.

By choosing Jinan Meiyi Biotechnology, you gain access to premium quality materials backed by scientific expertise, rigorous quality control, and a reliable global supply chain. We empower your innovation with reliable, consistent, and compliant raw materials, facilitating faster, safer, and more effective translation of bioactive science into real-world consumer and clinical benefits.

Ready to optimize your formulation?

Contact our technical sales team today to request a sample, review detailed technical data sheets, or discuss your custom sourcing requirements. Let us help you achieve superior product performance with our premium calcium hydroxyapatite powder.

Explore Our Full Range of Bioceramic Materials and Technical Solutions