How to Read a Sunscreen Label: SPF, UVA and Water Resistance

When you read a sunscreen label, look for broad-spectrum protection, SPF 30 or higher and water resistance if you will be swimming or sweating. The American Academy of Dermatology recommends all three for outdoor use. Also check the directions so you know how much to apply and when to reapply.

SPF and broad spectrum answer different questions

SPF describes protection against sunburn, which is mainly caused by UVB rays. Look for a broad-spectrum label or a clear indication that the product protects against both UVA and UVB. A high SPF number on its own does not tell you how a product addresses UVA. Labelling conventions can differ between markets, so follow the information and directions on the actual package.

Think about how you will use the sunscreen. A product that feels comfortable and that you can spread evenly is easier to use regularly. If your skin reacts to a product, stop using it and ask a clinician or pharmacist about alternatives, particularly after a skin procedure or if you already have a skin condition.

Read water resistance as a time limit

On U.S. labels, water resistance is tested for 40 or 80 minutes. It does not last indefinitely. Use the product directions when planning to swim, sweat or towel off. The AAD advises reapplying sunscreen about every two hours outdoors and after swimming or sweating. Apply it to exposed areas, including ears, the back of the neck and the tops of the feet when uncovered.

Match the product to your day in Dubai

• For a commute or outdoor lunch, keep sunscreen somewhere you will remember to use it and plan for exposed skin when you go outside.
• For a beach or outdoor sport, check water resistance, bring enough for reapplication and use shade and protective clothing.
• After an aesthetic procedure, ask when sunscreen can be applied to the treated skin and whether you should avoid sun exposure while it heals.

Sunscreen is one part of sun protection. A hat, clothing and shade make it easier to cover more skin. If your main concern is dark patches, Shape Zoom’s guide to melasma and sunspots explains why an assessment matters. The clinic’s skin consultation page is available for individual questions.

Sources

• American Academy of Dermatology guide to sunscreen labels
• American Academy of Dermatology guidance on choosing sunscreen

Cover image is an illustration. This article provides general information for readers.