my son is 3 year old. At the time of birth his colour is fair now a days is colour is darker day by day what can I do

A. hi dear This difference in skin colour is due to melanin (the pigment in human skin). Dark-skinned babies have more melanin in their skin than light-skinned babies. Melanin is produced by cells called melanocytes and apart from skin, also gives our hair and eyes their colour.