Oyster Silk Highlighter for Natural Radiance & Glow: Lightweight Formula with Iridescent Particles for Soft Focus Effect. The Highlighting Powder – Oyster Silk by MUA is a champagne-toned shimmer powder that illuminates high points of the face and enhances makeup. Its lightweight formula applies invisibly on skin and delivers a soft focus glow without heaviness. Perfect for Cheekbones, Forehead, Nose Bridge & Cupid’s Bow. Apply with brush or fingertip for natural radiance or intense glow. 100% VEGAN & CRUELTY FREE.