Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns.
As per your complain dark or hyperpigmented lips after smoking is due to continuous exposure of lips to heat and chemicals leading to excessive
melanin formation as a part of protective phenomena..
The first thing that you should do is to Stop Smoking as it is harmful for the body and can damage your lungs..
You can start apply creams containing
Kojic acid,
Glycolic acid and arbutin over the lips..
Applying
Vitamin E gel can help..
You can also take
Vitamin C supplements..
Creams containing grapeseed extract and tea tree oil can improve the colour..
You can also apply honey over the lips..
Exfoliate your lips twice a week with half a lemon by sprinkling a little salt over it which will act as scrub and lemon has bleaching properties..
Do cool compresses over lips.
Drink plenty of water..
Limit sun exposure and apply a lip balm with sun protection formula..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.