Particle Size: between 0.1 micron to 0.8 microns
Is a great barrier protection for skin. Is good used in baby bottom balms and
Please be aware that this grade of Zinc Oxide is not suitable for sunscreen manufacture. The particle size is too large, and the zinc is not manufactured in a way that allows it to have a reliable SPF. It is best to have no SPF at all than to make a poorly covering formula.