Bigger is not always better when it comes to the Sun Protection Factors in your sunscreen. A higher SPF number often means that there are potentially more irritating ingredients (in the form of chemical UV absorbers) which don't do much to add much more protection to your skin.
Using a high SPF of 50 can also give a false sense of security, users may feel that they do not need to reapply it and subsequently burn.
To get the full benefits from your sunscreen it is more important to apply prior to sun exposure (15-20 minutes is ideal), apply correctly, reapply after swimming or physical activity. Also adopt sun smart strategies such as wearing a hat and protective clothing, seeking shade and wearing sunglasses.
Did you know?
SPF 15 provides about 93% protection
SPF 30 provides about 95% protection
SPF 50 provides about 96% protection