Who will say no to pink lips? Every woman wishes to have soft pink lips. Additionally, plumpy rosy lips will add more glam to your beauty and make your smile more attractive. However, due to some unhealthy habits, the lips become dry and dark causing pigmentation. What Causes Lip Pigmentation? Melanin is a pigment that gives colour to your skin. People with more melanin have darker skin compared to those who have lesser. If the production of melanin exceeds more than the limit it may lead to hyperpigmentation. Hyperpigmentation creates dark patches on the skin, and it can affect any part of the body including the lips.  Causes of Lip Hyperpigmentation Sun exposure Dehydration Smoking Excessive intake of caffeine  Lip sucking Medical condition Allergic reactions to cosmetics  Implementing some lifestyle changes like reducing caffeine intake, changing toothpaste and wearing sunscreen...