Causes of oily skin

The origin of oily skin is sebum: secreted by the sebaceous glands located just under the skin, sebum is used from birth to protect the skin from external aggressors by covering it with a light oily, protective film. In puberty, the skin starts to produce more sebum due to hormones. It becomes shiny, greasy and the pores that drain sebum often become blocked. This causes the skin to suffocate. Imperfections can then appear: spots, blackheads or acne, or even all of these at once! This phenomenon affects both girls and boys and can last into adulthood. 

Other causes of oily skin

Oily skin isn’t only related to the hormonal changes that take place during puberty. There are other factors involved, starting with heredity: ask your parents if they had oily skin when they were younger, too! 
Also be mindful that your environment and lifestyle can explain why your skin is shiny: pollution, stress, diet, smoking and alcohol seem to have a strong influence on the skin's balance. So beware of excess...
The quantity of sebum also changes according to the temperature and the seasons: one degree more increases the production of sebum by 10%! Therefore the skin is oilier in spring and summer.

Cleansing, moisturising, make-up... Oily skin has specific needs, especially if it's also prone to blemishes. A good rule of thumb is to choose products that are gentle, non-comedogenic, and of course suitable for oily skin. If products are too aggressive or strip the skin, the skin will only react by producing more sebum, making the cure worse than the condition! You'll get the best results with gentle, regular skincare treatments. 

Oily skincare ritual