Carpet fibers, as well as carpet-cleaning solutions all differ so be sure to test any product in an inconspicuous spot before making any attempts at stain removal. Once you have ensured that your carpet will not discolor from your spot removal attempts, try the following cleaning solutions.

Before applying any solutions, clean up as much of a nail polish spill as possible. Gently blot the spill in a dabbing motion with an absorbent, white cloth.  To prevent the spill from getting worse do not rub at the stain.  If the polish has already hardened, use a butter knife to scrape off as much as you can.

Rubbing Alcohol:  Use an absorbent, white cloth and pour a small amount of the rubbing alcohol directly on the cloth.  Do not pour rubbing alcohol directly on the carpet as an excessive amount could seep to the underlayment and destroy the latex bond.

Detergent: Follow the alcohol rub with a light detergent bath.  Make a solution of a few drops of detergent in a quart of water and use to dampen a cloth. Begin blotting until the stain has been removed.

Nail Polish Remover: Nail polish remover is an obvious choice for a nail polish stain but it is not without its risks. The acetone added to nail polish remover will ruin some fabrics as well as carpet fibers.  If you must use this method, be sure to test your nail polish remover in an inconspicuous spot.

To use nail polish remover, slowly add the liquid a few drops at a time and begin blotting.

Carpet Stain Removal Tips          

To prevent embedding the stain: Never scrub at a carpet stain.  Rather than assisting in lifting the liquid from the carpet, it could actually grind it deeper into the fibers.

To prevent spreading: Always work your stain from the outer edge toward the interior.

To keep fibers intact: Don't rub at stains in a circular motion as this can cause the fibers to separate and ruin the look of the carpet. Blot in one direction.