Seborrheic Keratoses are often confused with warts or moles, but they are quite different. Seborrheic Keratoses are non-cancerous growths of the outer layer of skin. There may be just one growth or many which occur in clusters. They are usually brown but can vary in color from light tan to black and range in size from a fraction of an inch in diameter to larger than a half-dollar. The main feature of Seborrheic Keratoses is their waxy, “pasted-on” or “stuck-on” appearance. They sometimes look like a dab of warm brown candle wax that has dropped onto the skin or like barnacles attached to the skin.