There are many reasons for having dark lips. It may be genetic, and it may be caused by other external factors that can be controlled and prevented.
Dark lips can be caused when an individual has an excessive smoking habit problem. It can also be caused through extensive and prolonged use of makeup. It can also be caused by injury to the area such as a lip surgery or burns from sipping scalding fluids.

Dark skinned individuals usually have this skin complexion due to their genetic code.
The presence of melanin in our skin determines how light or dark our skin is. People with low melanin levels have lighter complexion. On the other hand, people with high levels of melanin have a darker skin. This is the same with the lips.
Treatment for Dark Lips and Skin
There’s not enough study whether these methods would work best. However, it wouldn’t hurt to give these home remedies a try.
Here are the following remedies for dark lips and skin you can opt for:

• To treat the dark discoloration of lips, you have to stop smoking. Nicotine is the main reason why there is a discoloration of the lips.
• Try the lip exercise. Studies show that promoting the circulation in the lips as you try to exercise them by rubbing them against each other would help.
• Use plain lip balm. It can help hydrate your lips and it prevents the lips from drying.
• To treat dark skin, try the papaya mixture method. You rub the mashed papaya all over your body
• There is also the famous milk bath that is known to have beneficial effects to the skin and the body.
• Bathe in chlorinated water. Water with high chlorine content would usually make your skin complexion much lighter.

How to Prevent Dark Skin and Lips?

• Eating healthy and nutritious diet
• Drink plenty of fluids
• Avoid stress
• Get enough sleep at night
• Stop smoking
• Avoid excessive use of makeup
• Observe a healthy lifestyle
• Observe good and proper hygiene practice