Leave Your Message
High Purity & Compliance Products
Calcium hydroxide ($Ca(OH)_2$), traditionally referred to as slaked lime, is increasingly recognized as an indispensable component in the pharmaceutical and nutritional supplement industries. While historically valued for industrial purposes, modern advancements in purification and chemical processing have unlocked its potential as a highly effective, bio-compatible agent. Today, high-purity calcium hydroxide is formulated under strict international regulatory standards, including the United States Pharmacopeia (USP), European Pharmacopoeia (EP), and Food Chemicals Codex (FCC), to ensure maximum safety, stability, and therapeutic efficacy.
In life sciences, the requirements for mineral ingredients extend far beyond basic chemical composition. Manufacturers demand materials with extremely low heavy metal profiles, consistent particle size distributions, and exceptional chemical reactivity. High-purity lime powder calcium hydroxide fulfills these criteria, serving as a critical pH regulator, active mineral donor, and structural excipient. Its unique alkaline nature and high calcium content make it a cornerstone in the development of therapeutic remedies and health-promoting dietary formulations globally.
Strictly controlled heavy metal content (Lead, Arsenic, and Mercury) exceeding USP/EP monograph requirements for patient safety.
Optimized particle size distribution ensures rapid dissolution, facilitating efficient calcium ion absorption in the human body.
Manufactured under stringent GMP protocols, supporting seamless integration into global food, drug, and supplement supply chains.
The global market for pharmaceutical and nutritional grade calcium hydroxide is experiencing robust growth, driven by several converging macro trends. An aging global population has heightened the focus on bone health, leading to surging demand for calcium-fortified dietary supplements. Concurrently, the rise of preventative healthcare and wellness trends has encouraged consumers to seek out daily multi-mineral supplements. Calcium hydroxide acts as an efficient, highly concentrated source of elemental calcium, making it a preferred choice for supplement formulators looking to optimize tablet size while maintaining high nutritional values.
Furthermore, clean-label initiatives and regulatory pressures are forcing manufacturers to replace synthetic or low-quality mineral sources with highly purified natural derivatives. The shift towards plant-based diets has also boosted the demand for calcium hydroxide as a fortifying agent in dairy alternatives, such as almond, soy, and oat milks, where it helps match the nutritional profile of traditional cow's milk. Geographically, North America and Europe remain mature markets with high regulatory hurdles, while the Asia-Pacific region represents the fastest-growing market due to rapid urbanization, increasing disposable income, and expanding healthcare infrastructure.
In pharmaceutical manufacturing, calcium hydroxide serves multiple critical functions that directly impact the efficacy, stability, and safety of drug products. Its primary chemical property—strong alkalinity—makes it an ideal agent for pH adjustment and buffering in liquid formulations, suspensions, and parenteral solutions. Maintaining a precise pH range is essential for preventing the chemical degradation of active pharmaceutical ingredients (APIs) and ensuring patient comfort during administration.
Many therapeutic molecules are highly sensitive to acidic environments, which can trigger hydrolysis or oxidation. By integrating micro-doses of pharmaceutical-grade lime powder calcium hydroxide, formulation scientists can establish a stable, alkaline microenvironment. This buffering capability is particularly vital in ophthalmic solutions, injectable drugs, and oral suspensions, where pH fluctuations could render the medication inactive or cause tissue irritation.
Due to its ability to rapidly neutralize excess gastric acid, calcium hydroxide is widely utilized in the production of antacid tablets and liquid mixtures. It reacts with hydrochloric acid in the stomach to form calcium chloride and water, providing immediate relief from acid indigestion, heartburn, and acid reflux. Unlike other neutralizing agents, calcium hydroxide also provides a supplementary dose of elemental calcium, contributing to the patient's daily mineral requirements.
One of the most specialized applications of calcium hydroxide is in endodontic therapy. It is the gold standard material for root canal sealers, pulp capping, and intracanal medicaments. The high pH (approximately 12.5) of calcium hydroxide paste creates an environment that is highly lethal to bacteria, effectively sterilizing the root canal system. Additionally, it stimulates the formation of hard tissue (reparative dentin) and promotes periapical healing, making it crucial for saving damaged teeth.
Pharmaceutical manufacturers also utilize high-purity calcium hydroxide as a precursor or reactant in the synthesis of organic calcium salts, such as calcium lactate, calcium gluconate, and calcium stearate. These derivative compounds are subsequently used as stabilizers, lubricants, and active mineral sources in various tablet and capsule formulations.
Beyond the pharmacy counter, lime powder calcium hydroxide plays a pivotal role in the nutritional supplement industry. As public awareness of calcium deficiency-related diseases—such as osteoporosis and osteopenia—continues to rise, the demand for effective mineral supplementation has never been greater. Calcium is a vital nutrient required for bone mineralization, muscle contraction, nerve transmission, and cardiovascular health.
In supplement manufacturing, calcium hydroxide is valued for its high elemental calcium content (approximately 54%). This high concentration allows manufacturers to produce smaller, easier-to-swallow tablets and capsules while still delivering the recommended daily intake (RDI). Furthermore, when combined with organic acids (such as citric acid or malic acid) during wet granulation, calcium hydroxide can be converted in-situ into highly bioavailable calcium citrate or calcium citrate-malate, maximizing absorption in the human gut.
Modern nutritional supplements rarely feature calcium in isolation. Formulators typically pair calcium with synergistic nutrients like Vitamin D3, Vitamin K2, and Magnesium to enhance bone deposition and prevent soft-tissue calcification. High-purity calcium hydroxide exhibits excellent chemical compatibility with these vitamins and minerals, preventing premature degradation during the shelf-life of the product and ensuring that the final supplement delivers on its nutritional promises.
With the exponential growth of the plant-based food sector, food fortification has become a major commercial avenue for calcium hydroxide. Plant-based milks, infant formulas, and fruit juices are frequently fortified with calcium hydroxide to match the nutritional profile of dairy products. It acts not only as a nutrient source but also as a processing aid, stabilizing proteins and preventing phase separation in liquid beverages. Its inclusion ensures that vegan and lactose-intolerant consumers receive adequate dietary calcium without compromising on product taste or texture.
Shandong Useen Calcium Co., Ltd. specializes in a range of products, including nano-scale calcium carbonate, food-grade calcium carbonate, calcium oxide, calcium hydroxide, and light calcium carbonate. Our company owns 17 fully automated calcium oxide production lines, three calcium hydroxide production lines, and nine calcium carbonate production lines. Its annual output is 200,000 tons for nano-calcium carbonate, 200,000 tons for calcium hydroxide, 160,000 tons for light calcium carbonate, 360,000 tons for heavy calcium carbonate, and 1 million tons for calcium oxide.
Innovation is at the core of everything we do. In recent years, we have made significant investments in R&D, focusing on the development of new technologies and next-generation calcium products. Our company has established close "industry-university-research" cooperation relationships with well-known foreign industry experts, the Institute of Process Engineering of the Chinese Academy of Sciences, Tsinghua University, China University of Geosciences, Beijing University of Science and Technology, Shandong University, etc.
Through our industry-university-research partnerships, we have established strong capabilities in applied research, product development, and advanced process engineering. These collaborations allow us to continuously evolve, improve our formulations, and meet the changing demands of global industries.
Our materials are used across a wide range of industries including PVC pipes, automotive primers, paper, printing inks, wires and cables, sealants, rubber products, tyres, and more. Our clients rely on us for consistency, tailored solutions, and support in scaling their operations without compromising on quality. Our company is the first in China to apply nano calcium carbonate to PE blow molding products, which can replace traditional filling materials and has excellent performance.
Explore Our Full Range of Solutions
