Not all acetones are alike. I had purchased acetone from Amazon and while it worked, it still took a long time to remove my gel nails. Another drawback was that it was pink, so it stained my fingertips from having to soak for so long (although it didn't stain permanently, it was still annoying). My main reason for purchasing this was that it was clear. I was wonderfully surprised at how quickly it removed my gel nails. I will never purchase acetone anywhere else. This is stellar!