Understanding Mica Powder Particle Size and Its Effect on Cosmetics

Question

I saw "AD size" mentioned for mica powder. Could you explain what particle size means for mica powder, how it's measured (like in microns), and how different micron sizes (e.g., 9, 13, 20, 33 micron) affect its properties and performance in cosmetic formulations like foundation, powder, and eyeshadow?

MySkinRecipes Expert · Accepted Answer

Understanding Mica Powder Particle Size

It seems you might be asking about the particle size of mica powder. While "AD size" is not a standard term used to describe mica powder, the size of the particles is a very important characteristic, typically measured in microns.

The particle size significantly affects how the mica powder performs in cosmetic formulations:

Smaller particles (e.g., 9-13 microns): These tend to provide better coverage and a more matte finish. They disperse easily and spread smoothly on the skin.
Larger particles (e.g., 20-33 microns): These often give a more radiant or shimmering effect. They also disperse and spread well, offering a soft and smooth feel.

Different micron sizes are chosen depending on the desired effect in the final product, such as foundation, powder, or eyeshadow. The products found include Mica Powder with sizes like 9 Micron, 13 Micron, 20 Micron, and 33 Micron, often coated to enhance texture and performance.