Using products that are too oily, comedogenic, or irritating.
Not removing makeup properly – or worse, sleeping with it on can absolutely cause pimples on the chin (and elsewhere on the face).
Over-cleansing or harsh exfoliation can strip the skin and cause it to overproduce oil.
4. Stress
Triggers hormonal changes that can increase oil production, leading to clogged pores.
5. Dirty Phones or Hands
Frequently touching your chin or resting your face in your hands can transfer bacteria and oils.
Phones, masks, or dirty pillowcases can also contribute to chin breakouts.
6. Underlying Medical Conditions

7. Cosmetic or Hair Products
Waxing or shaving the chin area can irritate hair follicles.
Some lip balms, beard oils, or face creams might clog pores around the chin.
If your chin acne is persistent or painful, especially if it’s cystic or hormonal, it’s a good idea to consult a dermatologist.