If it has alcohol or ammonia in it, you shouldn’t use it. I’ve also heard paper towels can scratch the screen, but who knows if that’s true? I use a glasses cleaning cloth, which I lick, then clean the screen. I lick it becaues I don’t want to spit on it; that would be too much liquid. My mom has these lubed towlettes that are specifically for laptop screens, but they left streaks on mine so I hate them lol4rl. Buy a bottle of iKlear from the Apple store. If you don’t want to do that, then use a microfiber cloth and water. If the water leaves streaks, use bottled water.