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What Causes Oily Skin?

Writer: Evan Trinh
Evan Trinh
Aug 8
2 min read

Oily skin is annoying, and it is something a lot of people deal with, including me. For a long time, I wondered why it happens. Is it sweat, genetics, or just the weather? It turns out it is not just one thing. Oily skin comes down to how much sebum your skin produces, influenced by a mix of genetics, environment, and even your daily habits.

Sebum is the natural oil your skin makes to protect and hydrate itself. The problem starts when your sebaceous glands produce too much of it. That is when your skin begins to look shiny, feel greasy not long after washing, and become more prone to breakouts. Excess oil can trap dead skin cells in your pores, which is why acne often comes with oily skin.


According to Healthline, several factors contribute to oily skin, including genetics, age, climate, enlarged pores, and using products that are not suited for your skin type. Your skincare routine also plays a role. Over-washing or exfoliating too much can strip your skin, causing it to produce even more oil. On the other hand, skipping moisturizer can have the same effect, since your skin tries to make up for the dryness.


If you struggle with oily skin, the goal is not to get rid of oil completely, but to manage it. Using lightweight, non-comedogenic products and keeping a consistent routine can help keep things balanced. In the end, oily skin is not something you can fully control, but it is something you can learn to manage. And if it continues to be a problem, seeing a dermatologist is always an option. I hope you are able to find comfort in your skin, just like I am learning to.

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