We are sure that by now you are aware of the importance of wearing sunscreen daily, no matter what the weather. It is widely known that UV rays can cause damage to the skin, even though the sun is not necessarily shining high in the sky on overcast days. But how do you know you are using the right amount of sunscreen to sufficiently protect your skin from these damaging rays? Research has found that users are only applying around 20-25% of the required amount of sunscreen to provide the protection stated on the product.