The NHS has issued a reminder about a crucial 30-minute rule for sunscreen application, emphasizing that proper use can significantly reduce the risk of skin cancer. According to the health authority, many people make common mistakes when applying sunscreen, despite the importance of protecting skin from UV damage.
Why the 30-Minute Rule Matters
In a recent Instagram post, the NHS explained that sunscreen needs to be applied at the right time to be effective. The guidance states: "Sunscreen needs to be applied twice: 30 minutes before going out and just before going out." This two-step process ensures the product has time to absorb and provide optimal protection.
The NHS website warns: "Sunburn increases your risk of skin cancer. Sunburn does not just happen on holiday. You can burn in the UK, even when it's cloudy. There's no safe or healthy way to get a tan. A tan does not protect your skin from the sun's harmful effects."
Reapplication and Water Resistance
For those spending extended time outdoors, the NHS advises reapplying sunscreen every two hours, or sooner after swimming. "Remember that water washes sunscreen off. Even if it is 'water resistant'," the health authority notes.
Additionally, expired sunscreen should never be used, as it "won't provide effective protection from the sun," the NHS warns. Users should check the expiry date, indicated by a symbol of an open jar with a number and the letter M, showing how many months the product lasts after opening.
Beyond Sunscreen: Other Precautions
The NHS also cautions against relying solely on sunscreen for protection. "Wear suitable clothing and spend time in the shade when the sun's at its hottest," the advice adds. This multi-layered approach helps minimize UV exposure during peak hours.
Choosing the Right Sunscreen
Not all sunscreens offer the same level of protection. The NHS recommends looking for a sun protection factor (SPF) of at least 30 to guard against UVB rays, and at least four-star UVA protection. UVA protection may also be indicated by the letters "UVA" in a circle, signifying compliance with EU standards.
The NHS concludes: "Do not spend any longer in the sun than you would without sunscreen." Proper application and reapplication are key to staying safe while enjoying the summer weather.
