Pressed powder cannot be sufficiently dispersed without adding pearl pigment to dispersed powder before adding oil.
But pearl pigment is destroyed, if it is dispersed like general inorganic pigments. In this case, pearl luster effect is weaker or is not generated. Inless colorants are sufficiently dispersed, good skin feel and color uniformity cannot be obtained.

Cleaning condition of processing machines is also very important to cosmetic application. If the cleaning condition of the machine is bad, remain matter appear on the next product as foreign matter.

Pearl pigment can be used in combination with other colorants in order to hide background color. For a good pearl luster effect, it is a very important factor to combine and /or balance between pearl pigments and other colorants.