Pearlescent refers to a surface finish that exhibits a lustrous, iridescent quality, resembling the sheen of a pearl. This effect is created by the interaction of light with microscopic layers of material, often found in paints, coatings, and cosmetics. The color can shift depending on the angle of light and the viewer's perspective, creating a dynamic visual experience. Commonly used in automotive finishes, nail polish, and art supplies, pearlescent finishes enhance the aesthetic appeal of products. The term can also describe natural materials, such as the inner layer of shells from certain mollusks, which produce a similar shimmering effect.