Everything You Need to Know About Oily Skin
A clear guide to breakouts, blackheads, and clogged pores. Learn what causes them, why they form, and how to manage them effectively on oily and acne-prone skin.
Medically reviewed • Updated March 2026 • Evidence-based skincare Lifestyle habits that cause acne—such as diet, stress, and sleep—affect breakouts by increasing oil production, inflammation, and pore congestion. High-glycemic foods raise insulin levels, stress increases cortisol, and poor sleep slows…
Medically reviewed • Updated March 2026 • Evidence-based skincare Many people believe acne happens simply because their skin produces too much oil. It’s a common assumption — if the face looks shiny, the oil must be causing the breakouts. But…
Skin oil, or sebum, turns black through a chemical process called sebum oxidation. When excess oil inside a pore is exposed to oxygen in the air, it undergoes a reaction—similar to a sliced apple turning brown—that hardens the oil and…
Blackheads vs. sebaceous filaments—what’s the real difference? Learn how to identify each one and treat oily, acne-prone skin without damaging your pores.
If you have oily skin, you likely struggle with those stubborn black dots on your nose. Blackheads are a form of non-inflammatory acne that appear when pores become clogged with oil and oxidize upon exposure to air. While common on…