The NHS has urged people to check their phones this week to see when a vital sun safety rule should be followed. On most hot days, protection may be needed from as early as 10am, even when skies are overcast. Following this advice could help avoid painful sunburn and reduce the risk of skin cancer.
UK UV Levels Set to Be High to Very High
The Met Office predicts UV levels across the UK will be high to very high this week, reaching Index 7 to 8 in the South, Midlands, Wales, and the North. These readings come alongside temperatures that could surpass 30°C, following the June heatwave. People can check the local UV Index through a weather app or website, with most recommending sun protection from 10am if a reading of three or above is predicted.
The 30-Minute Rule Explained
The NHS advises applying sunscreen twice: 30 minutes before going out and again just before going out. This allows the product to dry and create a smooth, uniform barrier on the skin, reducing transfer onto clothing or loss through perspiration. While sunscreen works immediately, letting it dry provides the most effective protection against UV rays. Always apply before dressing to ensure no areas are missed.
Common Sunscreen Mistakes
On Instagram, the NHS stated: "Are you applying sunscreen correctly? Common mistakes could be leaving your skin more exposed than you think." The health service reminded the public about crucial sun safety rules that many overlook. Not properly protecting skin can lead to sunburn, which increases the risk of skin cancer. The NHS notes that "people of all skin tones can get skin cancer" if they fail to take precautions.
Reapplication and Expiry Dates
The NHS recommends reapplying sunscreen "liberally and frequently," especially after swimming or using water-resistant products. Sunscreen should be reapplied every two hours, as the sun can cause it to fade. Apply immediately after being in water, towel-drying, perspiring, or whenever it might have been wiped off. When reusing an older bottle, check the expiry date and the symbol indicating how long the product remains safe after opening. Once unsealed, active ingredients deteriorate, rendering the lotion ineffective.
Seek Shade During Peak Hours
The most perilous mistake is relying solely on sunscreen. The NHS advises seeking shade between 11am and 3pm, the hottest periods when UV levels are typically highest. Combining shade, clothing, and proper sunscreen application offers the best protection.
