Progress Course Complete & Continue Next Lesson Learn More Chapter 1 1 Lesson Understanding What Acne Is Chapter 2 1 Lesson What causes acne Chapter 3 1 Lesson Understanding your skin type Chapter 4 1 Lesson How to choose the right product for your skin type Chapter 5 1 Lesson Supplements & Add ons Chapter 6 1 Lesson Advanced Treatment Course Complete & Continue Next Lesson Learn More Chapter 1 Understanding What Acne Is