Why does one get acne, even if their menstrual cycle is regular?

When I think of hormonal imbalances, I think of irregular periods. However, my cycle is totally regular. Why then, do I still get acne before my period?

When I think of hormonal imbalances, I think of irregular periods. However, my cycle is totally regular. Why then, do I still get acne before my period? https://ift.tt/eA8V8J https://ift.tt/2BU24TJ