Face getting Dark. Of the body parts do.

Hello Doctors, I wish to understand something and a solution for this. The thing is my face is getting dark more and more these days my hand, neck and rest of the body is fair but only the face is darker than other parts of the body I'm not sure why. So I started using Garnier Vitamin C serum and cream and using Lakme ultramatte 50Spf sun screen In the results I can see my skin is getting glow which is the happiest part but my skin is still dark there is no changes to skin tone. Moreover my face skin tone is not even, on forehead I could see tanned skin whenever I go out during morning at sun I can see my face is very quick to get black, Guess melanin will increase on face. Please someone help to resolve this issue and suggest some products for skin to become normal body tone without this Tan and all. I don't want fair skin but I want my face to become fair as my hand and the rest of the body parts do. Thanks for reading my concern!