All about sunscreen and UV

We put together a collection of interesting facts and useful tips around sunscreen, UV and what you can do to stay healthy in the sun. 

  • In order to protect your skin from harmful sun exposure, you have to watch out for UVA and UVB radiation.
  • UVA is associated with skin-aging, whereas UVB is primarily responsible for sunburn and both are linked to skin cancer. 
  • SPF stands for Sun Protection Factor. Bear in mind that SPF primarily shows the level of protection against sunburn from UVB, therefore make sure you buy sunscreen that protects you against both types of radiation. 
  • According to EU recommendations, SPFs are categorized as follows:

    Typical SPF


    6 or 10

    Low Protection

    15, 20 or 25

    Medium Protection

    30 or 50

    High Protection


    Very High Protection

    • The British Association of Dermatology recommends using sunscreen with an SPF of at least 30 to provide for satisfactory protection.
    • The power of UV rays increases through reflection: snow up to 85%, sand up to 17% and water up to 5%.

    Useful tips to stay healthy and happy in the sun

    1. Put on sunscreen at least 15 minutes before you expose your skin to the sun.
    2. Reapply sunscreen every two hours or after swimming, perspiring or drying off with a towel to make sure you enjoy a good level of protection.
    3. Enjoy the sun in the mornings and afternoon/evenings and avoid the hours around noon (10am to 4pm) where radiation reaches its peak.
    4. Do not underestimate the amount of sunscreen needed to cover an adult body of at least six teaspoons.
    5. Do not forget to put sunscreen on your nose, ears and lips.
    6. Do make use of sun hats, sunglasses and white cotton t-shirts. The brighter the colour, the better do those clothes block UV rays. Many sports and outdoor shops already offer clothing with integrated UV protection.
    7. Drink plenty of water to avoid dehydration, heat strokes and heat exhaustion.
    8. Apply sunscreen also on cloudy days since UV rays reach through clouds, smog or glass.

    World UV Map App

    The World UV Map App, developed by the MET and the British Association of Dermatologists, provides real-time information on daily UV levels across 10,000 locations worldwide and is available for free on both IPhone and Android.