Product 05 · UV filter, active & Excipient
Zinc Oxide
Zinc Oxide — full protection, no white cast, no heavy metals. A high-purity (≥99.5%) multifunctional white powder valued for antimicrobial, UV-blocking and skin-soothing properties — with AAS-verified ultra-low lead the sunscreen majors specify.
What it is
Engineered, not off-the-shelf
Zinc Oxide is a rare multifunctional Excipient and active in one: a broad-spectrum physical UV filter, a dermatological active (astringent, antiseptic, skin-protective), and a zinc source for fortification. It's the mineral filter formulators are increasingly switching to as chemical UV filters face restriction and reef-safety concerns grow. What separates a premium Zinc Oxide from a general-industry one is particle engineering (for aesthetics) and lead control (for safety).
Ultra-low lead, verified in-house
Pharmacopoeial ceilings are generous — IP allows NMT 50 ppm, BP NMT 10 ppm — and much market material sits close to them. We meet the tighter BP level as standard, and offer a dedicated special grade at <5 ppm for sunscreens, moisturisers, paediatric and ingestible use. Every lot's lead is tracked in-house on our own AAS — not sent to an outside lab. With surface area of 20–30 m²/g and nanoscale particle sizes, our no-whitecast grade spreads clear while keeping full UVA/UVB protection.
Key applications
- Topical ointments — astringent, antiseptic, skin-protective (e.g. calamine, barrier creams)
- Sunscreens — broad-spectrum mineral UVA/UVB filter, no whitecast, reef-safe positioning
- Cosmetics — matte finish, whitening and thickening in creams
- Food fortification — zinc supplementation
- Industrial — rubber vulcanisation, ceramics and coatings
Specifications
Typical values; grades customisable to order.
Full specification and CoA issued per batch on request.
Zinc Oxide capacity: ~1,000 T/month.
Documentation
CoA per batch (with AAS lead result) · MSDS · TDP · specification sheet · allergen-, GMO- and BSE/TSE-free statements.
Packaging & supply
Paper bags, HDPE or fibre drums; double LDPE liner; heat-treated pallets. Container loadability: 20,000 kg (20 ft) / 27,000 kg (40 ft). 7–10 day batch lead time; 60-month shelf life.
FAQs
Zinc Oxide — common questions
How low is the lead in your Zinc Oxide?
Do you offer a no-whitecast grade?
Is it suitable for sunscreens?
What is the assay?
Which pharmacopoeias is it certified to?
Proof before promises
Specify a Zinc Oxide that behaves the same every batch.
Request Samples & CoA, or talk to a formulation specialist.