What Causes Acne?

Acne Is Likely Caused by Multiple Factors, Including Hormones, Inflammation, Evolutionary Biology, Medications, Stress, Vitamin Deficiency, and Diet, Amongst Others

What Is Cystic Acne?

Cystic Acne Is Severe Acne, and Includes Large Lesions (Nodules and/or Cysts) That Are 5 mm or More in Diameter