Every single ss I have tried either stung or broke me out I am wondering if powders with ss are as affective? Dr. B recommends Neutrogena SPF 30, which I have in my purse for touch up but is it enough to rely on for the whole day? I went to an event at the park over the weekend and knew I had to protect my skin so I applied an SPF 20 block which I had a sample of. Uggg big mistake! Not only did my face burn all day but now I have little white bumps (clogged pores I belive), the upside is I did not burn! I am done ranting now!! What do you guys think? Can I rely on my mineral makeup and the neutrogena powder as an effective sunblock?