Jerome Russell Punky Colour is semi-permanent conditioning hair color. Outrageous color on bleached or chemically treated hair, highlight effects on darker hair-no peroxide required. With over 30 years experience, Jerome Russell is a world leader in the hair color industry. These products contain the highest quality ingredients. They don't use acid dyes, since these can stain the scalp and cause color bleed on clothing and bedding are cruelty free and are not tested on animals.