Blackheads are tiny black skin projections formed due to clogged pores.
These clogs are a buildup of dead skin cell and oil that get clogged in your pores.
While whiteheads are under the pore opening and appear white, Blackheads are open comedones which turn black when exposing to air.
Blackheads are often found on the nose and occasionally on the back.
They turn up on your skin and so stubborn to leave.
Reasons for blackheads may include Stress, Oily skin, Smoking, hormonal changes, irritation of pore, excess bacteria on the skin, Cosmetics and alcohol.
There are many simple natural ways to clean the pores and remove blackheads using easily available ingredients.