[Question] How often should I apply sunscreen per day for it to be effective on my skin?

Some dermatologists say that even if they do not receive procedures, they should use sunscreen when going out

I remember the emphasis on applying it correctly. . That much intense ultraviolet rays

You should prioritize sunscreen to minimize the impact on your skin. In that case...

How much do you think is appropriate to apply per day? ?

Actually, all I do is apply it before makeup in the morning, so in that case...

Would it not be effective for holding out all day? ?

With so many sunscreens available, which one should I choose? ?