👉 Marbling is a type of fat in the skin that appears on top of the body, typically around the mouth and chin. It's commonly found in women who have undergone breast augmentation surgery or are breastfeeding. Marbling can also be seen under the skin around the eyes, neck, and fingers. Marbling may appear as dark brownish-black spots or patches, and it is often associated with a lack of collagen, which is essential for maintaining healthy skin.