What Is The Lip Skin Caled. Lips have fewer layers of skin. When this coloration changes, there is often a reason behind it.
Lips have fewer layers of skin. Lips, soft pliable anatomical structures that form the mouth margin of most vertebrates, composed of a surface epidermis (skin), connective tissue, and (in typical mammals) a muscle layer. The vermilion border of the upper lip is known as the cupid's bow.