The mineral responsible for that coveted shimmer in your favorite highlighter, eyeshadow, and lipgloss is mica. This naturally occurring mineral has become the beauty industry’s go-to ingredient for adding luminosity and sparkle to cosmetics, transforming everything from subtle daytime glow to dramatic evening glamour.
I first learned about mica when I was standing in Sephora, squinting at an ingredient list trying to figure out why one highlighter gave me that soft-focus glow while another looked like straight-up glitter. Turns out, mica’s unique structure is what makes the difference. The mineral forms in thin, …
Mica Is the Mineral That Makes Cosmetics Shimmer—Here’s What You Need to Know










