Common triggers that worsen acne
Hormones are the biggest driver — which is why acne spikes in the teen years, before periods, and during times of stress.
Other contributors include certain skincare and makeup products (look for "non-comedogenic" on labels), friction from helmets, phones, or masks, some medications, and genetics.
Diet may play a role for some people: there is no single "acne diet," but limited, emerging evidence links high-glycemic (high-sugar) diets and dairy — particularly skim milk — to breakouts in some individuals. The evidence isn't strong enough for a firm recommendation.
What does not cause acne
Acne is not caused by poor hygiene or "dirty skin." Over-washing and harsh scrubbing actually make it worse by irritating the skin barrier.
FAQ
Does chocolate cause acne?
There's no strong evidence chocolate itself causes acne, though high-sugar diets may worsen it for some people.
Can stress cause acne?
Yes — stress raises hormones that increase oil production and inflammation.
Why do I still get acne as an adult?
Adult acne is common and usually hormonal, especially in women. It deserves the same evaluation as teen acne.
