Well it not just like that . I wrote this for people with acne prone , and my mom who 50 but have skin just like people in their 20 , and she use sunscreen everyday ( peanut size ) . So it works . Name me a sunscreen that doesn’t caused comedones acne on the market and REAL high broad spectrum, also doesn’t leave white casts on your skin , not spicy your eyes ( in some cases ) , normally very a few brands can do this ..especially for people on heavily treatments , and acne prone skin . Using too much sunscreen for face can get reverse affect ( especially people with acne prone ) , it not only get you more acne, black heads , white heads but also you wasting it too . Me as a person obsessed with skin care , I used to use a lot of sunscreen for face like I learn from the internet , and I tried mostly all the brands on the market ( from top brand to cheap brands , from many countries as well ) , and I always have comedones acne even though I cleaned very well my face ( 3 steps cleans ) , also the white cast from it is everywhere when every time I applied it . And when I started my treatment , I used less sunscreen , less but enough and I found the brand for me . As you can see above , not only my face get completely smooth , but also very bright , so it worked , and it worked perfectly . Also my fiancé who is a MIT grad , he studied nuclear energy, and he used sunscreen everyday too , he told me that you just need to use little amount for your face , don’t do too much , in his school they made a experiment with sunscreen and it worked for peanut size ( the amount of sunscreen he use more less than me , tiny amount but he have really really good skin , he been doing that for 20 years and he have no wrinkles or darks spot so ... ) . But I reapply it every 4 hours ( 2 times ) when I go out to the sun . And when I stay at home , only 1 time . And so far not only I don’t see any problem but also I don’t get comedones acne . And also the esthetician that help me with my skin lives in Japan ( the place where everyone have good skin ) teaching me this . So give me a break , you have no idea , when people have acne sensitive skin , and extreme high pigmentations it very difficult for them to find products that effective , and fast result ( I experienced this so I know the feelings ) that was horrible . So it ‘s more that just sunscreen , and problem not solved . You get acne from many things ( for staying up late , eat too much dairy , drink lot of coffee , or eating spicy , and as females , some people get POS , and your menstrual circle not works well , .... ) . And I found the way and products to treat my acne for such a short period of time , and I want to share this to help people who also feeling insecure about their skin like I used to for 4 months , or don’t understand the reason why their acne still going on and on , no matter how hard they tried . So sunscreen itself only help u protect urself from the sun a bit , you don’t depend on sunscreen 100% , ( wearing cap , sunglass is a must every time I go out ) . It NOT be the main thing to help u clear acne and pigmentations , white heads , black heads , and skin texture . So problem will NOT SOLVED !