The "best" water-resistant sunscreen depends on individual skin type and activities. Look for broad-spectrum protection with an SPF 30 or higher and a water resistance claim of 40 or 80 minutes. Consider mineral sunscreens containing zinc oxide or titanium dioxide for sensitive skin.

Yes, sunscreens can be water resistant, but no sunscreen is truly waterproof. Water-resistant sunscreens are tested to maintain their SPF level for a certain period (either 40 or 80 minutes) while swimming or sweating, as indicated on the label.

Choose a sunscreen labeled "water resistant" with an SPF of 30 or higher for swimming. Reapply it every 40 or 80 minutes, depending on the label's instructions, or immediately after towel drying.

No sunblock is truly waterproof. The FDA prohibits the term "waterproof" on sunscreen labels. Instead, look for sunscreens labeled "water resistant" with a specified time frame (40 or 80 minutes) for protection during water activities.