Zinc Oxide (micronized) - 1.8oz / 50g
Description: USP grade zinc oxide, from natural zinc ore, super-finely micronized (particle size 200 nanometer (nm) / 0. 2 micrometer. Mean particle size 86 nm. Able to reflect and absorb UVA and UVB light. Fine white transparent powder with minimal whitening, faint odor. Dispersible in water and oils. CAS#: 1314-13-2. One micrometer = 1000 nanometer (nm). INCI Name: Zinc oxide. Properties: Sunscreen for broad spectrum UV protection (incl. UVA), soothing effects for skin irritations, antimicrobial properties. UV range From the short-wavelength UVB (290-320nm) to the longest type I UVA (340-400nm). Transparent with minimal whitening effect. Use: Add preferentially to water phase, usually combined with organic sunscreens, typical use level 3-6% when combined with organic sunscreens, use level when given alone 3-20% (7. 5 % corresponds to a SPF of about 6-11). Applications: Sun care products (especially suited for children's products), makeup products.