From hairspray to traveling, learn about 10 surprising causes of adult acne and how you can zap those zits forever Acne Best Makeup for Oily and Acne-Prone Skin These bronzers, primers, and tinted moisturizers for acne-prone skin can help create a flawless look. A small Australian study found that carbohydrates with a high glycemic index for example, soda, sugary snacks and junk food increased the development and severity of breakouts. Stress Are you worrying about that deadline for a big project? Making big changes to your diet may also trigger acne.