LIP PIGMENTATION: Lip pigmentation is a process which leads to discolouration of lips.Firstly, they do not look very appealing, and secondly, they might signal an underlying health condition or the very fact that your lifestyle isn't suiting you anymore. Lip biting is a common habit which many people have and thus they end up having cracked lips. You can apply sun block on your lips. It does sound strange, but as it turns out, exposure to the sun can also cause darkening of your lips along with your face and other parts of the body uncovered with clothes. One of the most effective skin lightening treatments for treating lip pigmentation is kojic acid. Kojic acid is a great chemical which can help to block the production of color pigment, melanin, on the lips. Using creams, serums or scrubs with kojic acid can help to prevent further darkening of the lips. Beetroot: It is natural way to get pink lips. Applying it on lips daily will give you a pinkish tint. Its usage also helps in lightening dark lips as it contains bleaching properties.