Zinc Oxide USP — Pharmaceutical Grade

Zinc Oxide is a versatile, naturally derived mineral compound prized in cosmetic and personal care formulation for its UV-blocking and skin-soothing properties. Our Zinc Oxide is supplied as USP grade — manufactured by the French method starting from Special High Grade (SHG) zinc — giving you a consistent, ultra-fine white powder with 99.9% minimum purity, suitable for sensitive skin applications.

Available in sizes from 100g sample packs through to 25kg sacks for trade and bulk users.

Common Uses

• Sunscreen formulation — provides broad-spectrum UVA and UVB protection as a physical mineral sunblock
• Nappy & barrier creams — gentle, soothing protection for sensitive skin
• Calamine lotion — traditional ingredient for calming itchy, irritated skin
• Soap making — adds a clean white opacity and provides skin-protective benefits
• Cosmetic formulation — base ingredient in mineral makeup, foundations, BB creams and pressed powders
• Anti-acne & spot treatments — used in topical creams for its skin-calming properties
• Industrial use — pigment in paints, rubber manufacturing and ceramics

Product Specification

• Grade: USP — pharmaceutical grade
• Manufacturing method: French process from Zinc SHG (Special High Grade)
• Molecular formula: ZnO
• CAS number: 1314-13-2
• EINECS number: 215-222-5
• E number: E172
• Assay (ZnO): 99.9% min. (USP 40)
• Total impurities: 0.1% max.
• Lead (Pb): 0.002% max. · Cadmium (Cd): 0.001% max.
• Arsenic (As): 0.0001% max. · Mercury: not detected
• Iron (Fe): 0.0005% max. · Copper (Cu): 0.0002% max.
• Particle size (325 mesh / 45 μm): 99.9% min.
• Average particle size: 0.8 μm max.
• Specific surface area: 4 – 9 m²/g
• Specific gravity: 5.5 – 5.7 g/cm³
• pH: 6.8 – 7.5
• Loss on ignition (500°C): 0.2% max.
• Humidity (at 110°C): 0.2% max.
• Appearance: White fine powder
• Odour: Odourless

Storage

Store in a cool, dry place in a sealed container. Keep away from moisture to maintain free-flowing quality.