This 8 oz. shampoo is designed for use on wigs. We’ve tested it on our wigs, and it works fine. Run some cool or lukewarm water into a sink or bowl and add a handful of the shampoo. Mix the shampoo into the water and then add the wig and let it soak for at least 5 minutes. Then take it out and rinse it off. Pat off the excess water with a towel and leave the wig to dry on a wig head. Don’t dry the wig in direct sunlight, and make sure not to comb or brush the wig while it’s wet.