Everybody wants to see their lips with natural pink colour. But, sometimes colour of lips get darkened. Why do this occur? There are some factors behind because of which lip darkeness occur. There are around 11 factors, due to which lips darkness occur. Let's discuss each of them in detail. Image Source - uploaded by author Not only causes, we will also tell you right diet to prevent lips darkening. In that, comes 4 things that you should consume to prevent lip darkening. In addition to that we will also discuss, things you should APPLY on lips to prevent lip darkening. 11 Factors that causes lip darkening- 1) Excess coffee consumption 2) Excess alcohol consumption 3) Less water intake 4) Deficiency of iron 5) Deficiency of vitamins 6) Consuming unbalanced diet 7) Over sun exposure 8) Wearing lipstick all time, reaction from it 9) to 11) - Rest of the causes are given in video given below. 4 Things that you should CONSUME to prevent lip ...