<s>[INST] I m south Asian and therefore my skin is somewhat dark, but I ve noticed that over the years I ve become darker. I was wondering as well that if using my laptop and phone so closely all the time causes problems of me becoming darker? I feel like I have various patches of dark/lighter skin on my face. I ve been using sun cream to stay lighter. What would you say I should do and what is the problem? [/INST] hello.. as u said ur having dark and light colour patches on ur face over many years.. i hope it is due to vitamin and iron deficiency in ur diet  due to may b heavy work or stress. it might not b directly due to phone and lappy usage but due to neglecting proper diet .. i suggest u to take good diet full of vegetables and fruits and also multivitamin tablet daily one for one month.. if yet not recovered get ur blood test done for blood percentage.. i hope u wil get ur colour back soon.. all the best .. </s>