Definition

The vermilion border, also known as the lip vermilion, is the red, exposed portion of the lips. It is made up of a specialized type of tissue different from the skin that covers the rest of the face. The surface of the vermilion border is smooth and moist, and it contains many small blood vessels which give it its characteristic red color.

The vermilion border plays an important role in protecting the lips, helping them to seal and lubricate during speaking, eating, and kissing. Changes in the appearance of the vermilion border, such as dryness, cracking, or discoloration, can sometimes be a sign of underlying health conditions or nutritional deficiencies.

Disclaimer: Please consult a dermatologist or other healthcare professional if you have any concerns about changes in the appearance of your vermilion border.