Other causes of adult acne can include genetics, smoking history, sleep disorders, and more. One study of nearly 1,400 people ages 25 to 60 found similarities with teen acne but there are differences.

GLP-1 receptor agonist users were 1.36 times more likely to develop acne 90 days after starting the medication vs. nonusers. Women were 53% more likely to develop acne vulgaris 1 year after ...