The first few times I used the Magic Drops, my glasses were smudgy. Once I used a bit more pressure with the wiping cloth & a drier area on the cloth, my glasses sparkled. After a few times of that routine, my glasses didn’t need to be wiped multiple times to get that sparkle. I think the smudging was from dirt & oils loosened by the drops and spread across the lenses. I love the Magic Drops, I’m sure you will too!