Manganese Dioxide

Product Description

Green Stone Swiss provides cosmetic-grade Manganese Dioxide under a direct factory supply model, with GMP-aligned production controls, batch documentation, and sample support for global formulation teams evaluating mineral powder systems.

Manganese Dioxide (MnO₂; CAS 1313-13-9) is an insoluble inorganic oxide used as a mineral powder in tinted emulsions, complexion bases, and powder-in-cream systems. CosIng lists antioxidant as its cosmetic function class; in practice it is selected for pigment dispersion, tone contribution, and powder-phase handling rather than as a leave-on skin-active antioxidant.

Formulators typically incorporate it during pigment grind or oil-phase preparation for BB/CC creams, tinted moisturizers, and related makeup–skincare hybrids that require stable mineral dispersion and controlled shade development.

Product Specification

• INCI Name: Manganese Dioxide
• CAS No.: 1313-13-9
• Molecular Formula: MnO₂
• Molecular Weight: 86.94 g/mol
• Appearance: Black to brownish-black powder
• Purity: ≥98%
• Solubility: Insoluble in water and most cosmetic solvents
• Suggested pH: Compatible with typical emulsion pH ranges; confirm in final system
• Storage: Store sealed in a cool, dry place; protect from moisture

Key Benefits & Applications

Manganese Dioxide is a high-purity inorganic mineral oxide for tinted complexion and powder-dispersion cosmetic systems.

• Provides mineral powder support for tone contribution in tinted bases and complexion emulsions
• Aids uniform pigment grind and powder-phase distribution in oil-in-water and anhydrous systems
• Suitable for BB/CC creams, tinted moisturizers, primers, and makeup–skincare hybrid formats
• Insoluble oxide profile suited to high-shear milling and oil-phase dispersion processes
• Typical use level: Available upon request (depends on shade, vehicle, and regional compliance)

Formulation Guidelines

Use these process notes to disperse Manganese Dioxide evenly in tinted and mineral powder formulations.

• Suggested Use Level: Available upon request; finalize after shade matching and regional safety assessment
• Dispersion: Pre-disperse in the oil phase or pigment grind; apply high-shear milling until agglomerates are eliminated
• pH Range: Generally workable at pH 4.0–8.0; avoid strong acids or reducing agents that may alter oxide stability
• Addition: Add during pigment grinding or oil-phase preparation; confirm homogeneity before emulsification
• Compatibility: Pair with suitable dispersants and emulsifiers; evaluate settling and shade stability in the finished chassis
• Combine with Silica to improve powder flow, oil absorption, and dispersion uniformity in tinted cream and primer systems.