human
I am planning on visiting the beach and want to know what type of sunscreen I should buy.
assistant
The best type of sunscreen for you to buy will depend on your skin type, how long you plan to be in the sun, and the intensity of the sun's rays. For most people, a broad-spectrum sunscreen with an SPF of 15 or higher is recommended. You may also want to consider using a water-resistant sunscreen if you plan to be swimming or sweating during your visit. Be sure to reapply sunscreen every two hours while you are outdoors, and avoid direct sunlight when possible.