• Sunscreen with a high SPF rating is the best protection for your skin from harmful UV rays.
• But there's another rating you should be looking at too.
• It's called the star rating, and you should buy a suncream with a rating of at least 4.

Jonathan Hume@IamMrJ



Anyway apparently there has been Weather so its time to talk about how sun-cream works again.

SPF is the most commonly known metric, and is a measure of how much UVB is blocked.

However, the scale isn't linear. SPF50 doesn't block twice as much as SPF25.