Do you need Sunscreen for lips? Yes! Many people forget about their lips when applying sunscreen, but the truth is the lips are more prone to aging caused by sun exposure because they are so much thinner than other parts of your body. You need to use regular SPF protection for you lips. Not only can lips get sunburned, but repeated sun exposure can lead to lip cancer. A study found that lip glosses and any shiny substance on the lips attracts the sun and actually increases sun exposure. Fortunately lip cancer is fairly rare - but it can be disfiguring and deadly. Sun exposure is one of the main risk factors.