Nioxin Volumizing Reflectives Niospray - Extra Hold is an aerosol hairspray that gives lift and volume while still providing shine and body. Protects hair from becoming brittle or dry. Protects hair from becoming brittle or dry. Extra Hold strengthens the hair shaft. Adds dimension from inside the hair cuticle. Maintains style in all types of weather. Retains style memory and protects the hair from becoming dry or brittle. Provides UV protection for hair.