As the UK braces for its third summer heatwave with temperatures exceeding 30°C, the National Health Service (NHS) has issued urgent advice highlighting five common mistakes people make when applying sunscreen. The guidance aims to help Britons maximize protection against harsh UV rays during the hot spell.
Mistake 1: Applying Sunscreen at the Wrong Time
The NHS explains that most people apply sunscreen too late, reducing its effectiveness. Sunscreen should be applied twice before going outside: once 30 minutes before sun exposure and again immediately before heading out. This double application reduces the chance of missing areas and ensures a sufficiently thick layer. The NHS recommends using SPF 30 or higher for UVB protection and a high star rating of 4 or 5 stars for UVA protection.
Mistake 2: Not Reapplying After Water Exposure
After swimming, water fights, or any water contact, sunscreen must be reapplied immediately. Even water-resistant formulas can wash off. The cooling effect of water can mask sunburn, while water reflects UV rays, increasing exposure. The NHS advises using water-resistant sunscreen if swimming but emphasizes reapplication after towel drying, sweating, or rubbing.
Mistake 3: Not Reapplying Sunscreen Frequently Enough
"You should reapply [sunscreen] every two hours - sooner if you have been in water," the NHS stated. Reapplication should be liberal and frequent, following manufacturer instructions. The sun can dry sunscreen off the skin, making regular reapplication essential.
Mistake 4: Using Out-of-Date Sunscreen
Expired sunscreen fails to provide effective protection, according to the NHS. To check if sunscreen is still safe, look for a symbol on the packaging showing an open lid with a letter M and a number, indicating how many months the product lasts after opening.
Mistake 5: Relying Solely on Sunscreen
The NHS urges people to wear suitable clothing and seek shade during peak sun hours, typically 11am to 3pm in the UK. Loose-fitting, covering clothing made of close-weave fabrics that block sunlight is recommended. A wide-brimmed hat can protect the face, neck, and ears, while sunglasses shield the eyes.
