What causes oily skin?Updated a year ago
Oily skin is largely genetic, but it’s also heavily influenced by hormones and hormonal fluctuations. Androgens, the male sex hormones, are largely responsible for oil production in the skin, which is why oiliness tends to be most severe during puberty when hormones are surging.
Because of that, anything that impacts your hormones can also alter how much oil your skin produces, including certain medications or periods of stress. There may even be a correlation between certain diets and skin sebum content, although this connection is not well-researched or clearly understood.