The skin goes through a lot of changes due to the hormonal changes happening in the body. The skin at this stage is generally oily as a lot of oil is being secreted by the skin. The common problem faced during this period is acne. If acne prone skin is not cared for properly it may lead to permanent scaring or disfigurement of the skin.
External skin ageing starts due to environmental factors like pollution, climatic condition, excessive exposure to the sun which is further aggravated by internal ageing factors like stress (due to academic pressure, pressure to please and be popular with the opposite sex, wrong food habits).