Perhaps the most frustrating thing about breakouts is not knowing why they're happening. They can be caused by myriad reasons—stress, diet, sleep, travel, hormonal issues, and, of course, overdoing it with incompatible skincare.
As a Beauty Editor, I've always taken a clinical approach to my skin; I speak to dermatologists, I know what works for me, and I do as much as humanly possible to contend with stressors. So I was stumped by a recent bout of acne, which I figured couldn't have been caused by any of the above.
