Pearlescent pigments are widely used in the cosmetic industry to add luster, sparkle, impart color or color-travel effects, and provide coverage.
There are several types of cosmetic pearls available based on different substrates such as natural mica, guanine, bismuth oxychloride, synthetic mica (fluorphlogophite) and calcium aluminum silicate. Each substrate offers its own unique qualities and benefits.
Cosmetic micas are potassium aluminum silicate dihydrate. Silicates, much like silica, are based on interconnected SiO4 tetrahedra. However, in silicates the ratio of Si to O is greater, forming silicone-oxygen anions.
- Colors based on combination of light interference and absorption color of metal oxide layer
- Multiple surfaces of reflection give “pearl luster” finish