Oily skin is characterised by overactive sebaceous glands which produce more sebum (the natural oil of the skin) than is actually needed. Oily skin appears greasy and shiny - sometimes dull in colour - with often visibly enlarged pores especially around the nose area.
Due to the excessive production of sebum, pores can become easily clogged developing into blemishes and blackheads. For that reason oily skin is well-known as the skin type most prone to blemishes however on a more positive note, oily skin is also found to age more slowly than any other skin type!
There are a number of reasons why people experience oily skin at times, most commonly in women links can be made to changes in hormonal levels e.g. during pregnancy, menopause or when stopping a birth control pill.
Diet, genetic heritage, humidity, heat and, of course, the skin care range you use are other factors that can result in oily skin.
Usually the production of sebum increases during adolescence and starts decreasing with age. That is why we often see oily skin in teenagers.
Did you know? Occasional blemishes are often referred to as ‘PMS blemishes’ due to an increased release of the male hormone androgen pre menstruation. Androgen is known to alter the skin’s pH which causes an increase in sebum production potentially leading to clogged pores.
If you experience oily skin it's important to avoid harsh skincare products that completely strip your skin off any sebum thereby further activating your sebaceous glands to produce even more sebum to make up for the loss.