Jawline acne is caused when hair follicles clog up. Key factors include:

• Hormonal Changes: Pregnancy, menstruation, and birth control pills.
• Shaving: Irritation from shaving, especially with old or dirty razors.
• Beauty Products: Oil-based cosmetics can clog pores.
• Diet: High glycemic foods like sugary drinks and processed foods.
• Stress: Increases oil production, leading to breakouts.

Over-the-counter treatments may help, but severe cases might need prescription medications. Improvements can take several weeks.