Acne - Happens when hair follicle gets clogged by overproduction of dead cells and finally infected by bacteria. The various forms are congested pores, whiteheads, blackheads, pimples, pustules or cysts.

Acne Scars - Skin can have discolouration post acne, commonly known as acne marks. There are mainly 2 types are scars caused by acne during the tissue repairing process; the brown pigmented ones or the raised thickened ones.