New Delhi, March 19 -- Sunscreen in make-up, in skincare, in hairspray, in tablets-it seems sunscreen is in every skin-related product. How often should you apply sunscreen?

According to experts, regularly.

Sunscreen is essentially needed to protect the skin against UVA and UVB damage, which can result in premature ageing, sunburn and tanning, pigmentation, even skin cancer. Sunscreen and sunblock, which have SPF (sun protection factor) and PA rating (for UVA protection), prevent the rays from reaching the deeper layers of the skin or reflecting the radiation.

"You need sunscreen if you are stepping out in the sun regularly and want to prevent sun damage. You also need sunscreen if you are using a lot of actives in your skincare routin...