How to Use "sunscreen" with Example Sentences

1. Wear sunscreen with an spf of at least 30 .
2. Slather on the sunscreen and lip balm , even on cloudy days .
3. Paula begoun , author ofthe beauty bible , says that sunscreen is the only true anti-aging product .
4. Which sunscreen ingredients are best ?
5. But finding a good sunscreen can be difficult .