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What causes acne vulgaris?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

Acne vulgaris is caused when sebum (the natural oil the body produces to moisturize and waterproof skin and hair) backs up in the hair follicle. The fats contained in the sebum attract bacteria, which break the fats into fatty acids, causing an inflammatory reaction that results in the lesions known as acne.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.