Very oily skin

I am getting very very oily skin. The other day I wipe my forehead with my hand and when I looked at my hand it was shiny with oil. What could be causing this ? 

Clean up you diet and stay hydrated.  And whatever you do don’t use products for oily skin as they are extremely drying and strip the protective barrier.  The skin is an organ of elimination so either your body is trying to eliminate toxins through the skin, or you are dehydrated and the skin is trying to lubricate itself.

Oily skin is usually hereditary and hormonal. It can worsen during stress or if you get dehydrated.