The global magnesium hydroxide market is projected to grow from USD 1,421.6 million in 2024 to USD 2,601.8 million by 2034, registering a CAGR of 6.2%.This growth is driven by rising demand in flame retardants, wastewater treatment, and environmental applications. Magnesium hydroxide's non-toxic and eco-friendly profile enhances its appeal across industries. Increased regulatory focus on sustainable solutions further supports long-term market expansion.

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Magnesium hydroxide, widely recognized in its liquid form as milk of magnesia, is gaining traction globally for its versatile applications in health and industry. Beyond treating indigestion, it is increasingly used as a laxative, addressing widespread issues like constipation—affecting up to 33% of seniors in the U.S., according to the American Gastroenterological Association. In industrial settings, magnesium hydroxide plays a crucial role in wastewater treatment by neutralizing acidity and aiding in the removal of suspended solids, helping industries meet tightening environmental regulations. Additionally, it is finding ecological applications in the creation of artificial reefs through the Biorock method, offering hope for marine restoration amid the global decline of natural reef systems.

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Flame Retardant Applications Drive Industrial Demand

Magnesium hydroxide is increasingly used as a flame retardant additive across plastics, rubber, and industrial materials due to its thermal stability and environmentally friendly profile. Companies like Huber Engineered Materials are witnessing rising demand as industries seek non-toxic alternatives that align with fire safety and green regulations.

Art Conservation Emerges as a Niche Growth Area

An emerging use of magnesium hydroxide is in art and artifact conservation. Though still under research, its potential for preserving paper, wood, and other heritage materials is gaining attention, especially as global cultural bodies and governments invest in art restoration, such as India's Tata Trusts initiative and France’s USD 370 million heritage promotion program.

Side Effects and Substitutes Pose Limitations

Magnesium hydroxide, while effective, can cause side effects like diarrhea and muscle cramps when overused, limiting its medical application. Additionally, alternatives like aluminum hydroxide and caustic soda challenge its dominance in flame retardancy and pH control applications, curbing potential market expansion.

Post-Pandemic Recovery Fuels Forecasted Surge

From 2019 to 2023, the market grew modestly due to pandemic-related disruptions. Despite rising demand for antacids and laxatives during COVID-19, industrial use dipped. However, from 2024 onward, demand is projected to accelerate, driven by a booming steel industry where magnesium hydroxide aids in anti-corrosion.

Powder Form Remains the Preferred Choice

Powdered magnesium hydroxide is projected to retain nearly 78.2% of market share by 2034 due to its versatility, easier transportation, and superior blending capabilities in various applications like pharmaceuticals, plastics, and environmental remediation.

Key Drivers Shaping the Magnesium Hydroxide Market

• Rising Demand in Wastewater Treatment: Used for pH control and neutralization of acidic wastewater in industries, especially as environmental regulations tighten globally.
• Growth in Pharmaceutical Applications: Increased use in antacids and laxatives driven by digestive health issues and aging populations.
• Flame Retardant Adoption: Preferred as a halogen-free, eco-friendly flame retardant in plastics, electronics, and construction materials.
• Expansion in Steel and Metal Processing: Used for anti-corrosion and neutralizing acidic byproducts in steel manufacturing, aligning with the sector’s global growth.
• Emerging Niche Uses: Growing exploration of magnesium hydroxide in artificial reef construction and art conservation broadens its application scope.

The magnesium hydroxide market is poised for robust growth through 2034, driven by rising demand across pharmaceuticals, environmental applications, and industrial sectors. Ongoing innovation, regulatory support, and sustainability trends are reshaping usage patterns and unlocking new revenue streams. With its multifunctional properties and increasing adoption, magnesium hydroxide is set to play a pivotal role in future-ready solutions across diverse industries.