L' Oreals Prizms Plus is a semi-permanent hypershine conditioning colour gloss that lasts up to eight shampoos. The lumaplex technology interplays with light to create colour brilliance, hi-conditioning & intense shine without the use of ammonia or peroxide.. Features. ; Do not use if you have had a reaction to hair colourant or if you have a sensitive, itchy or damaged scalp. ; Wear suitable disposable gloves during the preparation, application & rinsing of the product