Be Sun Light

too long under sunshine, sure will make a dusky skin and dull. prevent process black by sunshine, by using cosmetics that contain spf,  or counter uva and counter uvb. 
cosmetics that contain spf, follow dr. maria from natasha skin care, mean to contain patron substance from sunshine.
usually, this covert power is worn term kisses protection factor (spf). " kiss screen and sunblock actually only term. function and in character same, to protect skin from sunshine bad influence. "
in several cosmetics like lotions, foundation, moisturizer, even lipstick usually included spf this. for example spf 15, spf 36, spf 50,  and another. the medical term, said maria, comparing besaran that number is called dose eritema minimal. " mean, light energy magnitude sun smallest that can causes red skin. "
for example, if skin without kiss screen hitted sunshine during 5 minutes, direct will emerge red. if wear spf 15 or spf 18, permanent will emerge florid but with longer time (if 5 minutes: 15 or 18 x 5, the result durasi for skin begins redden). so that, function spf this can more florid process in skin.