India, May 18 -- Unprotected sun exposure is a main cause of early skin ageing and skin cancer. Many people misunderstand how sunscreen works and make serious mistakes when applying it. For example, they might skip it on cloudy days or fail to realise how quickly it loses effectiveness. Even on cloudy days, your skin can still be at risk from UV rays, as up to 80% of the sun's harmful rays can get through the clouds, according to research by McGill University.

Sunscreen is one of the most discussed skincare products today, but it is also often misunderstood. People spend money on expensive serums and facials, but forget the most important step, using sunscreen correctly and consistently. The result is premature ageing, skin discolouratio...