Lip hyperpigmentation may be caused by:
Excessive exposure to the sun.
Lack of hydration.
Allergic reactions to toothpaste, lipstick, etc.
Too much caffeine.
A pigment called melanin is responsible for giving color to your skin. When your body produces less melanin, it results in a lighter skin tone. Similarly, more melanin creates a darker skin tone. So, if you are dealing with hyperpigmentation on the lips, it means your body is producing more melanin in that area. Hyperpigmentation causes patches on your skin to become darker than the skin around them. There can be various reasons for dark lips and Le Beaute is here to solve all these issues.