A. When hiking, it's recommended to apply sunscreen every 2 hours for optimal protection. Frequent reapplication ensures that your skin remains shielded from harmful UV rays, especially when exposed to the sun during outdoor activities. While the trekkers often wear a cap to protect themselves from the hot sun, not many apply sunscreen. Wearing a cap is essential since it offers protection from the sun, which ensures that the trekkers do not have a headache. However many are ignorant about the repercussions of this sun on their exposed parts of the body.A zinc sunscreen that is made from natural ingredients is always a better choice. It can be applied by people from any age group. Apart from checking the ingredients with which zinc sunscreen is made, selecting the right sunscreen with a good SPF (sun protection factor) is important. A zinc sunscreen with SPF 50 offers protection against 98 percent of the UV rays