Oil is produced by the sebaceous glands, which are bigger and more active in the region of the nose than any other area of the face. This is why the nose tends to be a trouble area. The pores in this area are also larger in order to accommodate the higher amount of oil produced. Other areas on the body where sebaceous glands are most heavily concentrated are the neck, chest, and back - areas where body acne can be common.
The amount of oil that each body produces is determined by genetics. It is affected by hormones and what is called an "end organ response". Many people have the same level of hormones, but produce different amounts of oil because their oil glands respond differently. During adolescence a surge in the level of sex hormones, known as androgens, creates a problem of oily skin where previously there was none. This happens because androgens enlarge and stimulate the sebaceous glands, causing them to produce more sebum.
While this stimulation is not directly responsible for acne, the extra sebum for which they're responsible produces more fatty acids when a comedo plug (blackhead) closes off a pore opening. The additional fatty acids increase the amount of inflammation, and more severe acne occurs.
Despite all the trouble that oil can cause, it is very important to the maintenance of the skin. When the system is working properly, oil performs the important job of helping to lubricate your skin. Oil also carries with it dead skin cells shed from your hair follicle walls. If you over strip your skin of its natural oils, it can leave skin more vulnerable to infection, dryness, and environmental damage.
For someone with oily and acne-prone skin, there are usually three main skin care objectives (not counting any anti-aging concerns): keeping pores from getting clogged and forming acne lesions, minimizing pores, and shine control.
Cleansers for Oily Skin
Toners for Oily Skin
Moisturizers for Oily Skin
Treatments for Oily Skin
Anti-Aging Treatments for Oily Skin
Acne Treatments for Oily Skin