What is mentolabial sulcus?

The mentolabial sulcus is a groove or crease that runs horizontally between the chin and the bottom lip. It is often visible in older people as a result of natural aging, loss of elasticity in the skin, and loss of fat and collagen in the facial tissues. The depth of the mentolabial sulcus can vary among individuals depending on genetics, lifestyle factors, and skin care habits. It is commonly treated with dermal fillers to smooth out the appearance of the skin and restore a more youthful look.