[Routine Help] Do I need both moisturizer and sunblock if moisurizer has 30 SPF?

Beauty Tips For Body Care
Pictured (from left to right) is my cleanser, my moisturizer (the first recommended moisturizer with SPF from the wiki), and my sunscreen (the first recommended chemical sunscreen from the wiki). Is it necessary to wear sunblock with a moisturizer with the same amount of SPF?http://imgur.com/dngT6SA
Girls Blog 2015
Submitted by greenpumpkin812