Brand new sealed in box. Authentic! Mini What it is: A version of the iconic Translucent Loose Setting Powder in a glow finish that sets makeup for up to 12 hours of luminous, weightless wear. What it does: Laura Mercier has taken their iconic, cult-favorite Translucent Loose Setting Powder and infused it with pearl pigments so you can lock in your look for up to 12 hours with a healthy, glowing finish.