Review title is Not for natural, unpolished nails. [SEP] I purchased Nailmedic rejuvenator at Walmart thinking it might work. Work or not? ... After trying it for several days I noticed my nails looked dirty. Oh no, it was this product that stained my nails. Tried to return to Walmart ( no longer on their shelves in Iola, Kansas) they wouldn't/couldn't issue credit or refund without a receipt. Do not purchase this unless you plan to use a color on your nails, which I do not.