ZinClear® Dispersions vs Powder: Which Format Is Right for Your Formulation?

Advance ZincTek Team
12 hours ago
2 min read

Direct Answer

The choice between ZinClear® XP powder and ZinClear® dispersions is determined by manufacturing capability, not performance. Both formats use non-nano, uncoated zinc oxide and deliver equivalent broad-spectrum UV protection. Powder suits facilities with high-shear dispersion capability that require full control over the formulation system. Dispersions suit facilities where zinc oxide is incorporated using standard mixing equipment, or where processing consistency and scale-up efficiency are the priority.

The Role of Manufacturing Setup

Uniform dispersion of zinc oxide requires sufficient mixing energy. With high-shear equipment, powder can be broken down and distributed evenly through the oil phase, giving the formulator complete control over carrier selection, viscosity, and system architecture. Without it, achieving consistent particle distribution becomes a challenge that affects texture, UV performance, and batch reproducibility.

Dispersions address this directly. Because the zinc oxide is pre-dispersed in a carrier oil at the manufacturing stage, it incorporates into the oil phase with standard mixing equipment. The dispersion work has already been done, which reduces processing variables and supports consistent results across production batches.

Key considerations when choosing between formats:

• available mixing equipment and shear capability

• in-house dispersion expertise

• formulation stage: development versus commercial scale-up

• required level of control over oil phase and carrier design

• batch-to-batch consistency requirements

Non-Nano and Uncoated

All ZinClear® products are non-nano and uncoated. Non-nano particles remain on the surface of the skin and do not penetrate, which underpins reef-safe, sensitive skin, and infant product claims. The uncoated surface interacts directly with the formulation system without the variability introduced by silane or silica surface treatments, and supports clean-label, natural, and organic certified positioning.

ZinClear® XP - Powder

ZinClear® XP is a pharmaceutical-grade, non-nano zinc oxide powder with a mean particle size of 200-700 nm and purity of 98.0% ZnO, manufactured under TGA-licensed GMP conditions in Australia. It is ECOCERT and COSMOS approved.

Powder is the right choice for formulators who want direct control over the dispersion process and oil phase design. Effective incorporation requires high-shear mixing and a suitable dispersant. For mineral-only sunscreen formulations, typical ZnO loading is 15-25% for SPF 30+. ZinClear® XP as the sole active consistently meets EU and Australian broad-spectrum requirements.

The uncoated surface is also well suited to tinted formulations, blending cleanly with iron oxides for consistent colour and tone.