The efficacy of any sunscreen will depend on the number of factors that are involved in your UV exposure, such as time spent outdoors, amount of exposure, and type of sunscreen.
Chemical sunscreen products provide a physical barrier to those UV rays and can produce lightning effects on your skin. However, these have a downside because they often contain harsh chemicals that can trigger specific skin reactions like rashes or dryness. Natural sunscreen is made with ingredients that will harness and protect you from the sun's harmful rays by using minerals and oils.