so tonight, after i removed my nail polish (parlez- vous OPI) i thought i would try out the myth of rubbing your finger nails with a lemon to get those nasty stains that dark nail polishes leave behind off! overall, i will give this about a 6/10! i love that its organic and no animals were harmed but...it doesn't work all that well! don't get me wrong, it removes some of the stains! but not all! but everyone should give it a try, it might work better with different people!