Why Sun Lotion Is Important

Editorial update: October 8, 2026.

Sunscreen is one part of a daily sun-protection routine. It works alongside shade, protective clothing, a broad-brimmed hat and sunglasses.

What SPF tells you

SPF describes a sunscreen’s level of sunburn protection. It is not a timer and does not tell you how many extra hours you can safely spend in the sun. Look for broad-spectrum protection, which covers UVA and UVB rays, and an SPF of at least 15, as recommended by the FDA. Higher SPF values can provide greater sunburn protection; they do not replace correct application and reapplication.

Use sunscreen as directed

• Read and follow the product’s Drug Facts label, including its warnings and directions.
• Apply generously before sun exposure; FDA guidance generally calls for application 15 minutes beforehand.
• Reapply at least every two hours, and follow the label’s instructions after swimming, sweating or towel drying.
• For swimming or sweating, choose a sunscreen labeled water resistant. The label specifies 40 or 80 minutes; no sunscreen is waterproof.
• Limit midday sun exposure and use shade and protective clothing. Ask a healthcare professional before using sunscreen on a child under six months.

Read the label carefully

Check the labeled SPF, broad-spectrum status, water-resistance information and expiration date. A product listing or registration does not mean the FDA has endorsed that product. Do not use an FDA logo as a shopping test.

Moisturizing in your routine

A moisturizer can help skin feel softer and more comfortable. If it also contains sunscreen, follow the sunscreen directions, including reapplication. An evening moisturizer is a separate step for hydration and does not provide next-day sun protection.

For more information, read the FDA’s sunscreen guide and sun-safety advice.