Adult acne is more common than you think and can be caused by:
- Hormones,
- Medications,
- Stress,
- or Cosmetics to name a few.
Causes
Acne is the result of three things going on within the skin:
- Oil glands producing too much oil,
- Acne-related bacteria, called Propionibacterium acnes or pAcnes, within hair follicles (where the oils are released),
- and both of those clumping with dead skin cells to block the follicles. Pustules and cysts indicate inflammation.