5 Benefits of Blueberries for the skin: ....... 1. Anthocyanins contain antioxidants that fight free radicals that damage your collagen. Antioxidants also help protect against skin cancer. 2. They improves skin tone. 3. Blueberries are good for your circulatory system as they keep capillaries and blood vessels flexible and keep them from breaking. 4. Acne prevention: blueberries balance hormones and neutralize sebum. 5. Blueberries are anti-inflammatory.