Some setting sprays have spf in them so you can just mist your face.Something that always annoyed me about sunscreen is that they always tell you to apply it 15 minutes before going out and reapply every 2 hours, but who has time for that when you're out and about? What if you put it on under makeup? Do you have to find a bathroom to wash it off just so you can reapply your sunscreen and then re-do your makeup?
The 15 isn't for it to "activate" it's so it has time to create an even layer over your face. But you can totally go out after just putting on especially if it is fast absorbing like the ones that have alcohol in them.Something that always annoyed me about sunscreen is that they always tell you to apply it 15 minutes before going out and reapply every 2 hours, but who has time for that when you're out and about? What if you put it on under makeup? Do you have to find a bathroom to wash it off just so you can reapply your sunscreen and then re-do your makeup?