I wasnt to sure if this product would work? But i tried it and fell in love with it. And i wear it all the time! I love the new glitter colors that just came out!OMG.,,, they are soo awesome! We sell this wear i work and i tell all my customers about this product.It lastest along time! I'm VERY picky about my nail polish, this brand is the best! I have seen knock offs of crackle but never tried it and wont. I've been a sally customer since i was a kid.