Sleek is an online retailer of women's cosmetic products. They provide a range of beauty products including blushers, bronzers, concealers, eyeliners, mascara, lip colour, lip liner, lip balm and brush sets. The company strives to provide high-quality products to their customers at affordable prices. They have a strong online presence, making it easy for customers to browse and purchase their products. Overall, Sleek is a brand that focuses on providing women with the perfect blend of style and substance when it comes to cosmetics.