This nail polish remover definitely gets the job done, but I do have to put in a little more effort to remove my nail polish than I do when I’m using the dollar store acetone removers. But this doesn’t smell as strong (although it does still smell because, well, it’s nail polish remover!), so I feel like it isn’t as harsh on my nails. I put a cotton ball on the end of the bottle and turn the bottle upside down really quickly, twice. About 3 cotton balls like this usually get all of my nail polish off if I’m wearing a lighter color. For darker colors, I need more. I can’t speak to the strengthening aspect of this product because I’ve been blessed with naturally strong nails. I’ll likely keep purchasing this polish remover.